Electric Industrial Fan Heaters

Electric Industrial Fan Heaters

They are the big and stronger brothers of classic fan heaters: Electric industrial fan heaters! Ideal for heating large industrial premises, whereby the field of application of these fan heaters is very far-reaching. Of course, this also goes beyond commercial and industrial use, as these electric industrial fan heaters are very versatile and provide a great solution to many electric heating requirements. In the following, we will introduce you to these powerful electric heating systems and how they can be used, what equipment to use, and what to look for when buying an electric industrial fan heater.As a rule, when taking about industrial electric heaters, 230 volt / 1 Phase units will generally be supplied with an output of 3 kW maximum and use a maximum of 13 Amps as this is the maximum that a standard 3 pin “household” type socket can satisfy.The higher output fan heaters above 3 kW need to be connected to a 415 Volt – 3 phase supply, as when using a 3 phase electrical supply the current limits are much higher which allows us to get more heating capability from these types of warm air fan heaters.

Industrial fan forced electric heaters

As the name already makes it clear, electric industrial fan heaters are mainly used in the professional or industrial sector. This ranges from heating, drying and ventilation on construction sites, or in workshops and warehouses and commercial buildings. They are also used as temporary or top up heating for sports halls and social clubs as well as larger event type heating that use marquees etc. As you will see from the detail below, there are electric industrial fan heaters for very specific applications, which meet the specific application requirements, such as mobile units, fixed units etc.

Fixed or mobile Industrial electric fan heaters

Whist the smallest electric powered industrial fan heaters will usually be free standing mobile units and easily carried to where ever it is required, the larger heat requirements can often be delivered from electric fan heaters installed on brackets mounted to walls or columns, or even hung from the ceiling or roof structure.

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Wall or Ceiling mounted electric industrial fan heaters from Flexiheat UK

When the units are to be wall or ceiling mounted, they are often called electric unit heaters. These tend to have a lighter , but still robust casing , as they are not required to have the level of resistance to knocks and bumps that the mobile units tend to receive, as they are mounted at a wall or ceiling height and are out of the way of this type of potential ware and tear that the mobile units are often subject to.Full details on our range of these electric unit heaters can be found here – 

For 6 kW to 27 kW of heat output – 

https://www.flexiheatuk.com/product/industrial-fan-heaters-electric/

or for the commercial range that goes from 3 kW to 15 kW of heat output

https://www.flexiheatuk.com/product/electric-unit-heater-3kw-to-27kw-output/

Mobile units – 

Industrial electric heaters , commercial electric heaters

This mobile unit , our “FHNXG” model is available in 9 Kw , 12 kW or 20 kW Output and is a compact yet powerful electric forced fan heater.

The models with up to 30 kW of output are very mobile, and are either easily lift-able or have a wheel’s that allow you to manoeuvre these electric heaters to your required destination. The models up to 20 kW of heating output can easily be transported in a car boot for example.

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Our mobile industrial fan forced electric heaters – 9/18 kW on the left or the 15/30 kW model on the right

Full details on both of the above industrial portable electric heaters electric can be found here – 

https://www.flexiheatuk.com/product/industrial-electric-heaters/ 

When you get to the larger output industrial electric fan heaters, then they can be heavy and large, especially when we are talking about our 42 kW model, which is 130 KG’s in weight. Although this unit benefits from heavy duty braked caster wheels, which allow you to manoeuvre the unit quite easily. This model also comes with forklift slots or pockets as well as lifting eyes, should you wish to lift the unit to a high level.

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Industrial Electric Heater-42kW- from Flexiheat UK

Ductable units – When you want heat into another area from your heater 

If you only require to deliver the heat into the area or room where the space heating is required then it is an easy decision: you’re not going to need an electric industrial fan heater that has a duct spigot fitted to the unit. But if you want your industrial fan heater to deliver heat into a separate area, room or enclosed space then your going to need a ductable electric fan heater. Flexiheat can supply various ductable industrial fan heater models, that can be ducted up to 30 metres in length, as we have units that have high air flow pressure produced by the high-quality fans that are fitted to our units

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Sizing of your heat requirement / heat loss 

The first stage of narrowing your requirement for an electric industrial fan heater is to establish how much heat you need. There are some general rules of thumb, that will give you a good approximation of the heat requirement for you building. You can use 60 Watts per /m2 of floor area.


But using this general assumption has some potential big draw backs, the first being that this “rule of thumb” generally is based on a 3-metre-high room. Many Industrial unit have much larger heights than this, so for an accurate heat loss calculations you would need to calculate the volume of area being heated, adding any heat generated by hot industrial process or machines and then using the U values of the various materials that are used in the make-up of your room or building, along with the desired internal temperature , and normal maximum external temperature ,you calculate an accurate heat requirement for you application.


We have a handy spread sheet / form that you can fill out, along with description of your insulation levels. That we can send you, just fill this form or spread sheet out and we can calculate your heat requirement for you.So just get in touch with us.

Sockets, Plugs and Leads for Industrial Fan Heaters

Single phase industrial electric fan heaters generally come complete with a length of flex and a fitted plug as standard, and whilst in the case of 110 Volt powered electric heaters they come with a standard 3 pin round plug for fitting onto a transformer. For more information on our 110 volt industrial electric fan heater model, please see the following dedicated web page – 

https://www.flexiheatuk.com/product/110v-heater/


With 3 phase heaters there are a greater variety of plugs and some of the smaller heaters come with a flex and plug and some come without, as in the example of our electric unit heaters, as they are designed to be hard wired as they are designed as fixed electrical heaters, and thus come with a connection block.
Some of the larger mobile heaters come with a “CEE” connection socket inbuilt onto the heater, allowing you to have the connecting flex as long as you require, to suite your site conditions

Industrial electric fan heaters UK

The full range of our electric air heaters / fan heating units is robust and totally reliable; These are built with an indisputable high experience and knowledge. Whilst the fan motors of these heaters production cycles, are certified and subject to the strictest technical and dimensional checks and electrical tests according to the ISO 9001: 2015 certified Corporate Quality System and are in full compliance with the latest European and International standards in force.

Industrial electrical fan heaters UK

If you require any further assistance with our electric industrial fan heaters / industrial fan forced electric heaters or any of our products, please click here to contact us via email or call us direct on 01202 822221

Industrial Warm Air Heaters

Industrial Warm Air Heaters – Your Options / Guide 

Industrial warm air heaters work by pulling cold air from the environment and moving it across a heat exchanger. This cold air is heated and via a fan, re-distributed back into the environment until an ambient temperature is achieved, thus heating the building.Warm air heating systems can include floor standing ,suspended units or even mobile units, making them a versatile choice for commercial and industrial premises. 

These warm air heaters come with a wide variety of fuels to choose from, such as oil, natural gas, propane / LPG, electric or even bio-fuels, to power the system.Making these heaters a versatile warm air heating option for any industrial or commercial application.

There are several types of air heaters, these being, gas heaters, oil heaters, hot water heaters, and electric heaters. Each of them has advantages as well as disadvantages.

Thanks to the principle of forced convection, the hot air is renewed and diffused throughout the space. The unique design of these heaters allows you to combine heating and ventilation, which is effective for the treatment of stale air within a building.

Warm air heating can be considered a modern replacement for traditional water or wet heating central heating systems within industrial and commercial premises and works by forcing warm air around the building

Industrial gas warm air heaters

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Industrial warm air heaters from Flexiheat UK

Definitely the most common industrial warm air heaters are the natural gas or propane gas fired units. They come in thee main types, either floor standing, suspended – either from the ceiling or mounted onto a wall, and lastly mobile versions.All of our warm air product range can be seen here –https://www.flexiheatuk.com/products/

A free blowing industrial gas warm air heating system is one of the most cost effective and efficient means of heating industrial and commercial buildings. They represent better value than a wet system with boilers and unit heaters or radiators, having a faster speed of response.

Industrial Warm Air Heating Systems

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Industrial warm air heating from Flexiheat UK

For floor mounted Industrial war air heaters- which are commonly known as “cabinet heaters”- are installed on the floor and therefore take up floor space. They come with nozzles or vents to give direction to the flow of warm air – this is known as “free-blowing” — meaning that the warm air is simply projected into the room or they come ready for connection to a duct-work system, that is designed to distribute the warm air around the building or buildings to be heated.

Industrial Warm Air Heating

Warm air heating for any industrial site has some great benefits in that they provide fast warm up times and will heat your area quickly, as apposed to radiant heaters which only heat the area that is covered directly in front of the units.

Warm air heaters industrial are these days incredibly practical as you can control the amount of heat that they produce.They can keep the area being heated at a constant temperature, which improves comfort levels for the employees working in that area, or even to maintain temperatures for application or manufacturing processes that require a certain temperature to aid curing of a product etc.A constant temperature will also be helping to reduce energy costs or bills.You can also help reduce your energy costs even further by using destratification fans, if heating large areas with high ceilings, again another product that we supply. A superb addition as they help to evenly distribute the warm air back down to the area where its required, and are estimated to help save up to 30% on the fuel bill.The latest warm air heaters feature energy efficient burners, which can deliver efficiencies of 91% net, and when used in combination with a control system, optimal design this is the opportunity to lower running costs and gain a more eco-friendly heating system

Industrial warm air heaters UK

Our extensive knowledge of the industrial and commercial heating sector helps us find the right warm air heating solutions to suit your requirements.These industrial warm air heaters are intended for heating large volumes, such as greenhouses, warehouses, factories, supermarkets, and gymnasiums etc that we have in the UK.When heating a large industrial space or warehouse, it can be important that every area is heated with no cold spots, and warm air percolates very well.

In contrast to normal rooms, industrial buildings and warehouses have quite different challenges when it comes to warm air heating. Thus, warm air industrial heating has to be designed for the even distribution of heat and take into account the greater air turbulence of the height in a taller industrial or warehouse building, and take into account the warm air buoyancy currents naturally play a greater role in these applications.

Heating industrial sites with warm air

Should you require anymore assistance or information on our Industrial warm air heatersIndustrial warm air heating systems , please don’t hesitate to contact our sales team on 01202 822221 or click here for our email contact form.

12kw Electric Combi Boiler

12kW Electric combi boiler – What are your options?

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12kw electric combi boiler option – Flexiheat UK

An 12kW electric combi boiler can be the perfect solution to your heating and hot water demands for a small house or flat. An electric combination boiler does away with the need for stored hot water but with this comes some things you need to be aware of to decide if a combination electric boiler is right for your application.

Here Flexiheat UK, we have a couple of options for your 12kw electric combi boiler requirements. We do a range of 12kw electric combi boilers, that can either be run off a 240 Volt / Single Phase electric supply (the most common household electrical supply voltage for the UK and Ireland)

The term “combi” is just an abbreviation for the word “combination” and when used in the context of a 12kw electric combi boiler, this means that the electric boiler will not only do the central heating requirements, but also produce domestic hot water, for your hot water taps within your property or flat. They’re ideal for properties with gas boiler restrictions, such as flueing issues, or no access to the mains gas supply. They are the perfect solution /cost effective alternative for replacing existing gas boiler, electric storage heating or solid fuel wet central heating systems with electric boilers and reduce your carbon footprint.

Ok that’s the good news, but here’s reality

Electric combi boilers under 15 kW on the market don’t work – in the real world!

Why? you just can’t get useful hot water performance out of a single phase 240 volt powered electric combi boiler unit.

Unlike a gas combi boiler, which does an outstanding job of quickly transferring energy from natural gas to heat water and producing an appropriate hot water flow rate, this is not the case with an electric boiler of this size.

When it comes to an electric boiler, you need the power (Amps) to do this, and a single phase 240 Volt supply can’t generate the Amps necessary to accomplish the requisite hot water flow rate even for smaller properties – if you do have 3 Phase then look at this webpage – Electric Combi Boilers for units that start at 15kW and above.

What’s the solution then?

Essentially, we use a standard electric boiler with the minimum sized indirect hot water storage cylinder, which is an mains-unvented hot water type – it is only 80 litres in volume, to make up a “12kw electric combi boiler”.

This results in the lowest water storage level, but enough hot water supply to cope with your properties needs i.e., it not only provides sufficient water volume, but also at the right temperatures as you require 50C to be able to wash the grease of dishes / kitchen utensils. Whilst reducing your energy costs to the minimum for your domestic hot water heating system.

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15kW and below electric combi boilers solution from Flexiheat UK

12kW Electric Combination Boiler Efficiency & Benefits

None of our 12kW electric combination boilers options emit gases or direct pollution when operating as they are not using fuels such as natural gas, LPG gas or Oil and therefore there is no risk of leaks or explosions. All of our electric combination boilers are highly efficient at above 99%, and come with a control panel, and are fitted with the latest ErP low energy rated heating pumps and come with a system expansion vessel. Our electric combi boiler benefits and key features are –  

  • A fully qualified ErP compliant 12 kW Electric Combination Boiler combined with a
  • 80 litres of Domestic Hot Water Storage
  • Heating and hot water superior performance
  • They can be used with a wet underfloor heating system
  • They can be used on a a traditional wet central heating system with radiators
  • They can be used in conjunction with solar heating systems
  • Come with an energy efficient ErP compliant heating pump
  • Fully modulating power / output regulation
  • Full controller over your required operating temperatures
  • Inbuilt control panel / programmer or can be connected to a wi fi wireless thermostat or traditional room thermostat
  • Can be controlled by an “OpenTherm” compatible controller, such as your Hive or Nest type controllers -meaning you can control the “electric combi boiler” from an app on your phone or tablet.
  • A frost / freezing protection system – If the temperature of the water inside the 12kw electric combi boiler is under 5°C, the pump and heating elements will operate to bringing the water temperature up to 35 Degrees Centigrade, ensuring that the boiler is protected against freezing and any potential damage.

They can be installed by any competent electric heating company or a plumber in conjunction with a electrician. 

Domestic Hot Water Performance

One of the most important factors in relation to electric combination boilers is their Domestic Hot Water ( sometimes referred to as DHW) performance. With 12 kW of heating power dedicated to heating the domestic water when required, which ensure a great recovery time of the stainless-steel water tank, which is a very compact unit ,should you use all the water in one go – such as filling a bath.

The recovery time of 80 litre tank, (which can be mounted directly underneath the wall hung electric boiler or in a sperate location to suit site requirements ) from 10 Degrees C to 60 Degrees C is only 29 minutes – and only 15 minutes from 35 Degrees C to 60 Degrees C. The temperature of the domestic hot water can be controlled between 35 to 65 degrees centigrade for anti legionella requirements, and comes as standard with a 3kW immersion heater, for use as a back up heater.


Kitchen taps – flow rates of between 4 to 6 litres per 
minute. These days water efficient taps and showers should have the following flow rates –

Showers – flow rates of approximately 8 litres per minute for a standard shower head.

So with 80 litres of storage of domestic hot water , a standard shower uses 65.1 litres of water blended down to 43 Degrees C and lasts for 8.2 minutes at average flow rate of 8 litres . The 80 litre stainless steel DHW tank will provide 83.3 Litres of water , when stored at 60C and blended down to 43C, which is the highest safe showering/bathing water temperature. Ensuring you have a nice warm shower, at a good water pressure, up to 7 Bar if required.

 

Electrical Consumption Details  – including fuse & cable requirements :-

These 12kW electric combi boilers can be wired up either with a single phase 240 volt or a Three phase 400 volt electrical supply, 

 

The following information is relevant when this 12kW electric combination boiler is wired up to a 240 Volt , Single Phase electrical supply –

 


12kW Electric combi boilers for sale UK & Ireland

The full brochure for this 12kw electric combi boiler and the rest of our range as we also do three phase electric versions that go up to 21 kW of heating output, please download our brochure here – 

 

Should you require anymore assistance, more information or a price on our 12kW Electric Combi Boiler / 12kW Electric Combination Boilers , please don’t hesitate to contact our sales team on 01202 822221 or click here for our email contact form.

10 kw Electric Boiler

10 kW Electric boiler – What are your options ?

At Flexiheat UK, we have various options for your 10 kw electric boiler requirements. We do a full range of 10 kw electric central heating boilers, that can either be run off a 240 Volt / Single Phase electric supply ( the most common household electrical supply voltage for the UK and Ireland ) or 415 Volt / Three phase electrical supply. These 10kw electric units are suitable for underfloor heating systems or central heating hot water heating applications as well as domestic hot water installations when coupled up to an indirect hot water cylinder. Our 10kw electric boiler offering are often used in garden rooms, cabins or flats.

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Our closest output to a 10 kw electric boiler is our model ” FHEL9″ which is actually just under that value at 9 kw of output, but normally most home heating systems are oversized, as they normally take into account the worst case scenario of it being minus 5 Degrees C, which in the UK winter is vary rarely seen to be honest, thus we’d be very confident that a 9 kW output electric central heating boiler would suffice for your requirements

However should you require 10kW electric output, then we do our model FHEL14 which is rated to an output of 13.5 kW, which is slightly over in output value, but please remember these electric wet central heating boilers have a modulating output, which means it can modulate down to 10 kW of output – for more information on this model and our full range please see this page – https://www.flexiheatuk.com/product/electric-central-heating-boilers/

10 kW Electric Boiler Efficiency & Benefits

Our electric boilers have a  99.5% efficiency rating which is better than any gas or oil boiler and benefit from well arranged touch display and control panel for our FHEL9 model. This touch screen ensures both simple and intuitive control of the boiler is achieved.

Fluent regulation in low power output steps of just 1 kW (1,000 Watts ) ensure that the heating load requirement is appropriately matched, also ensuring even greater heating efficiency to the wet central heating electric boiler system, be it underfloor heating or a radiator system.

The modular digital control assures optimal operation of this 10 kW electric boiler in a way that optimizes electric energy consumption with the rated thermal output of the electric boiler.

These 10 kw electric boilers come complete with an integrated “ERP” energy efficient compliant heating pump and integrated 7 litre expansion vessel, making these electric boilers what is commonly know as a system boiler. This allows you to have a “sealed heating system” meaning that no feed and expansion water tank is required in the loft or at high level – which can be prone to freezing or bursting. It also means  installation is made a lot more tidier and compact, as all required components are within the boiler casing.

These electric central heating boilers can be controlled by an “OpenTherm+” thermostat or controller e.g. a nest controller etc ( control your 10kw electric boiler on the go, from your phone) giving your greater control over your electric wet central heating boiler.

They can also be controlled by a standard room thermostat or weekly programmer – the decision is yours to make.

Technical details of our 10 kw electric central heating boilers

Below you can see the technical data for the Flexiheat “FHEL9” and also the next size down and up in this range of touch screen electric boilers for central heating –

Please note as these electric central heating boilers, can be wired in either three phase or single phase, the below table shows both parameters. For example, the maximum rated current for the FHEL9 electric boiler, when wired up using a three phase electrical supply is – 3 x 14 Amps per phase, and when wired in single phase, the figure is 1 x 42 Amps.

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These boilers are CE marked and approved, and also comply with the directives 2006/95/EC (Low Voltage Directive, LVD) and 2004/108/EC (Electromagnetic Compatibility Directive, EMC) and carry a 2 years parts warranty as standard. So, if you want the best 10 kw electric boiler for sale on the UK market, then we are the company to speak to.

Other features 

  • To reduce energy heat loss, the heat exchanger is completely insulated.
  • Boiler temperature range of up to 80C 
  • Heating water pressure – a minimum of 0.5 Bar water pressure and a maximum of 3 Bar water pressure for the heating system
  • Suitable for underfloor heating systems or traditional radiator systems
  • Water level sensor to ensure running dry due to system water loss is not a problem
  • 9 stage heating output steps or levels – for better heat load matching for lower running costs, fuel bills and accurate temperature control
  • The front cover is easily removable for any maintenance purposes such as checking the expansion vessel etc
  • Auto air vent – either 10kw electric boiler options have an auto air vent fitted as standard ( the air vent removes the air from the heating system that causes corrosion to start)
  • Unlike inferior units that have a  temperature control dial – such as the slim Jim electric flow boiler – our units have a nice and easy touch screen control
  • Virtually silent in operation
  • No fuel supply tank or flue are required when you use a 10kw electric boiler – an oil boiler or lpg boiler requires a fuel supply tank
  • Opentherm control connections – so you can connect a Hive or Nest controller to our unit
  • Our 10kw electric boiler options be installed in kitchen wall cabinets, garden rooms or a utility room – you can fit our 10kw electric boiler pretty much wherever you decide.  

10 kW Electric boilers for sale UK & Ireland

Should you require anymore assistance or information on our 10 kW Electric Boilers / 10 kW Electric Central Heating Boilers , please don’t hesitate to contact our sales customer service team on 01202 822221 or click here for our email contact form. All of our invoices inc vat.

Boiler pressure keeps dropping ? What to check

Boiler Pressure keeps dropping or continually low ? 

Why does my boiler pressure keeps dropping ? This is a common question , and following in this guide we’ll take you through the most common boiler problems, what to look for , and actionable things that you can do to fix the dropping boiler pressure. Most of the time these fixes are easy , that can be done by yourself, as you don’t need to be an expert in order to do a little troubleshooting on your own.

By following these simple steps , you should figure out what is causing your low boiler pressure , and why it continually keeps on dropping , in no time at all, before having to call a plumber out. Some of the fixes can be done by you , whilst others you may have to get a plumber or heating engineer out to look at your heating system as you may have a boiler leak causing it to lose pressure.

work through the following table of contents in an orderly manner

Things to check on the boiler

Firstly you need to check your boiler pressure gauge , and see what’s it’s reading. This gauge is most commonly built into the boiler, or underneath it and should look like this or similar –

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The Heating System Pressure Gauge – The fist thing to investigate as why your boiler pressure keeps dropping

In the picture above the red marker on the gauge is just an indicator of where the level should be, the thin black marker is the actual pressure of the heating system. A pressurised boiler system or a sealed central heating system needs a certain amount of pressure to work, normally about 0.5 Bar – 1.5 Bar, although some will continue to function with far less pressure. If this pressure reading is lower than the recommend pressure level, this means you heating system water pressure is low and that you have low boiler pressure which needs to be topped up so the level is above the red line on the pressure gauge normally via the filling loop, which will fix the low boiler pressure.

It is usually best to contact a plumber if you have any concerns about your boiler losing pressure or are unsure of how to re-pressurize the system yourself.

But before that is done, you really need to establish why the boiler keeps losing pressure as you may have pressure loss in the pipework i.e. copper pipe via a leak or even a leaking radiator valve, gland nut or heat exchanger etc.

Combi boiler pressure keeps dropping ?

It doesn’t matter whether your boiler is a heating or heat only boiler or a combi boiler, as we are talking about losing water pressure on the central heating system here .If your combi boiler is losing pressure on your domestic hot water side of the boiler ( this is you hot water that is provided to your hot water taps , showers or bath taps ) then this will be a mains water pressure problem, and you would need to consult your water supplier.

First thing to check –

Is there air in the heating system?

This is an easy thing to check yourself. You just might be able to diagnose your problem with just a few checks,

Before you do anything, try bleeding your radiators. But before you set off to do this, a top tip is to have a towel or rag to catch any drips from the radiator air vent, as the water form the heating system can be black in colour and stain anything that if falls onto. To bleed your radiators, use a radiator key. Find the radiator air vent and slowly turn the radiator key counter clockwise until water starts dripping out, this releases the trapped air and lets hot water fill that void or space in the radiator again, ensuring a nice hot radiator. Always bleed the top floor radiators first and make sure you bleed the radiators in sequence. Bleeding the air from the radiators will then cause the pressure to drop lower again, so check it again after bleeding all the radiators and adjust it accordingly.

If bleeding the radiators doesn’t work, then you may have a bigger issue such as an air lock in the heating system or you may even need to have the heating system itself flushed out. I wouldn’t recommend you doing this yourself , unless you feel completely comfortable, and have the tools and equipment to do it properly. So it’s time to call a plumber for most people.

Second thing to check –

Is there a leak in your central heating system?

Look for signs of a water leak such as a damp floor, leaky pipes, a small hole in a radiator somewhere or a stain on your ceiling, any or all of these signs point to you have a leak on your central heating system, which is causing your boiler to lose pressure. Finding a leak may sometimes feel like finding a needle in a haystack, but it’s worth trying to find it yourself, before calling out a plumber, as most heating engineers charge an hourly rate, which can become quite expensive, should be tasked with finding the leak on you central heating system.

Third Thing to check –

Is the boiler pressure relief valve leaking ?

Is the pipe coming off the pressure relief valve on the boiler continually dripping water ? If so at some point the valve has probably operated and there may be some internal debris that is stop it from properly shutting off again. This faulty pressure relief valve may need to be cleaned or replaced completely and is a fairly cheap repair or you may need to replace this faulty pressure relief valve. This job really should be left to a qualified plumber or heating engineer to do.

Fourth thing to check –

Is the Boiler Expansion Vessel Faulty?

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An external expansion vessel, used in central heating systems

All modern sealed system boilers or pressurised boiler systems use an expansion vessel with pressurised air within the unit, either placed within the boiler but can be located externally too , that accommodates any expansion that is created when water is heated up in the heating system. If the expansion vessel is faulty, it normally means that it will not be able to handle the expanding hot water resulting in the pressure in the heating system rising rapidly and this water will be ejected through the pressure relief valve, once it goes beyond 3 bar in pressure. The expansion vessel’s internal bladder, which is normally made from neoprene rubber (Neoprene rubber resists degradation more than natural or synthetic rubber), must be inflated by air or ideally nitrogen ( when the gas side is filled with nitrogen, and not with air, corrosion is prevented and the pressure loss is even more limited). This level of nitrogen or air, commonly known as it’s charge must be maintained through annual servicing of the boiler or eventually it will dissipate completely, eventually causing the boiler to have continual low-pressure problems and ultimately failure of the central heating system.

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Expansion Vessel internal picture, showing the “Bladder”

If that doesn’t seem to be the problem, then the next thing to do is find the Schrader valve on the expansion vessel, which looks like an air valve found on a car or bike tyre. Then depress the valve in the centre using a screwdriver or similar. If water comes out of the valve it means that the diaphragm has failed inside the expansion vessel, and you will need to replace the vessel or with some units you can just replace the internal neoprene bladder.

Dropping boiler pressure from Flexiheat UK; boiler pressure keeps dropping; boiler pressure keeps dropping to 0;
Expansion Vessel Schrader Valve Picture & How to Test

If air comes out of the Schrader valve you need to check the pressure of the charge in the vessel. To do this you will need a suitable measuring device, such as a car tyre pressure checker. The air or nitrogen pressure for an internal boiler expansion vessel should be around 0.8 bar ( but please consult your boiler’s operating manual and check exactly what pressure the vessel should be charged to) but this could be higher for externally mounted expansion vessels. To fix this call your local heating engineer and ask him to re-inflate the expansion vessel. This is done by draining off all the heating system pressure first, then then using a pump (like a bicycle type or similar) the expansion vessel is re-inflated.

So what if the boiler pressure keeps dropping after doing this ?

So after your expansion vessel has been re-inflated keep an eye on the boilers pressure gauge, to see that it’s still correctly holding the system pressure for the next couple of weeks, as sometimes the internal bladder that holds the air or nitrogen has a pinhole puncture and it leaks out over days or even weeks , which isn’t always obvious, until you see your boiler pressure dropping.

Pressurizing your expansion vessel should typically be done as part of an annual boiler service, by a qualified plumber / heating engineer. We highly recommend that any work that is required to be done, is not done by a yourself or a novice, as we are dealing with hot water and pressure here, and these two items can cause physical damage to people or the property

Boilers with low water pressure – other things to consider

One thing that people often overlook is that if your boiler has been under pressured for a long period and you’ve been constantly topping the heating system up via a filling loop, then it would have depleted the central heating inhibitor chemicals within the heating system, it is therefore very important to add more inhibitor to the heating system , otherwise your heating system will start to corrode which can lead to a failure of your boiler, in a relatively short period.

Refilling your low pressure boiler heating system

After diagnosing your problem, and getting it fixed, the final step in getting you low pressure boiler back up to the desired pressure is refilling the heating system with what is called a filling loop . On some boilers the filling loop is internal to the boiler but in most systems the filling loop is an external piece of kit, and should be what is termed as a part “L” of the building regulation compliant and looks like this –

ferroli boiler pressure keeps dropping,combi boiler pressure keeps dropping
Part L Compliant Filling Loop

You should only refill your central heating system when the system has cooled down. You simply open the valves up, slowly and wait for the pressure gauge on the boiler to rise to 1.2 Bar to 1.5 Bar maximum (please consult you boiler manual for the recommended pressure that they stipulate).The process is then finished off by closing the valves , thus sealing the heating system from the mains water

Hopefully this guide “boiler pressure keeps dropping” has been helpful, and shown you some of most common reasons why this happens and how to remedy it.

Warm Air Heaters – ErP 2018 Lot 21 Directive Effective January 2018

ErP 2018 Lot21 – Guidelines for Warm Air Heating Systems

 

 

What is ErP?

The Energy related Product (ErP) Directive is designed to reduce carbon emissions across Europe. In the same way as on white goods, TV’s and tyres, since September 2015, ErP also applies to domestic and commercial heating products.

The main objective of ErP is to phase out low efficiency products from the market place. ErP also covers electrical powered products, boilers, water heaters and renewable technologies, but for Warm Air Heating applications, where humans are enjoying thermal comfort, then the warm heaters being installed must achieve a seasonal efficiency of more than 72%, from 1st January 2018.

Requirements  for warm air heating :

  • Efficiency requirements (gas and oil)
  • Limit values ​​for nitrogen oxide emissions:
  • ErP Stage 2 for Warm Air Heaters – From 26th September 2018 maximum 100 mg / kWh  for gas fired units and 180 mg / kWh for oil fired units.
  • ErP Stage 3 for Warm Air Heaters – From 1 January 2021 maximum 70 mg / kWh for gas units and 150 mg / kWh for oil fired units
  • Information must be provided freely and publicly

Both our suspended gas unit heaters and our floor standing industrial gas heaters are fully ErP compliant.

And our oil fired heaters are also ErP fully complaint – see here – Oil Fired Cabinet Heaters  or our industrial oil heater range

The importance of being ErP compliant for warm air heaters 

Since September 2015 the Energy related Product (ErP) Directive has impacted boilers, water heaters and hot water storage tanks. Flexiheat UK are committed to ensuring that all products are compliant and all heating professionals understand ErP regulations.

ErP Objectives

The ErP Directive was designed to reduce harmful non-environmentally friendly emissions from energy consuming products. This is to contribute to the European Union’s 20-20-20 targets on climate change and energy.

Targets for 2020 

There are three main objectives for 2020:

  • A 20% reduction in EU greenhouse gas emissions compared to 1990 levels
  • A 20% improvement in the EU’s energy efficiency
  • Raising the share of EU energy consumption produced from renewable resources to 20%

Implementation in two stages:

  1. From 01.01.2018: Space heating annual efficiency η s at least 72%
  2. From 01.01.2020: Space heating annual utilization rate η s at least 78%

Space heating annual utilization rate :  Definition

The space heating annual utilization rate is a key figure that should take into account the actual operation of heating systems. It is not the firing efficiency. The commission responsible for the directive has recognized that heating works on average 85% in partial load operation – i.e. in the transition periods – and only about 15% of the full load operation is required and therefore weights the heating efficiencies. Furthermore, inefficient burners, poor insulation and permanent pilot lights are considered with negative factors. Thus, for the first time, different manufacturers can be objectively compared.

Is a Mandatory if –

Warm Air Heaters are being used to provide thermal comfort for human beings – then the heaters MUST comply under the ErP for Warm Air Heaters – Lot 21 of the regulations

Applications where the ErP Directive for Warm Air Heaters 2018 are exempt:

  • Door curtains
  • Frost protection of perishable product
  • Horticultural heating (i.e. glasshouses)
  • Agricultural heating (i.e. poultry houses)
  • Process heaters/dryers

Information for Warm Air Heating Installers

All Warm Air Heating installers are responsible for ensuring compliance with certain parts of the ErP Directive when carrying out an installation or replacement. Installers have to carry out efficiency calculations for the installed system, provide energy labels and complete the ‘fiche’ document.

Flexiheat UK  is committed to supporting installers with everything they need to complete the fiche and ensure everything is ErP compliant. We strongly recommend that warm air heating installers become familiar with how ErP works.

For more information on the ErP Directive please visit: www.gov.uk/placing-energy-related-products-on-the-uk-market.

You can download a copy of the ErP Directive for Warm Air Heaters 2018 here 

German Electric Heaters – From Flexiheat UK

German electric heaters warm air from Flexiheat UK

With the rising costs of gas and oil, we are more and more looking for ways to cut back on heating bills without sacrificing comfort. German electric heaters are a reliable way to heat the areas of a house, apartment or business unit you use the most, without wasting energy trying to heat your entire building. When looking for the right model, consider the advantages an electric heater can provide.

Our range of German Electric Heaters are well engineered being built in the southern area of Germany, which is synonymous with manufacturing excellence. The units are built to an extremely high standard and are some of the most energy efficient and safest models on the market. If you really think you can benefit from an electric heater in your home, garage, or the office this is the type you should get.

As the saying goes,  “you to get what you pay for”. That is why, we strongly recommend paying that little bit extra for a German made heater to give you peace of mind with its high standard of construction.

Our German factory offer a nice range of electric heaters, from a 3kW model up to and 18kW model. The 18kW model has a version that has high temperature capabilities, allowing it to thermostatically controlled up to 70°C. This German made electric heater unit is perfect choice for use in the heat treatment, pest control industry.

We have found that our 3kW German made unit, after prolonged continuous use, can actually pull 13.1A. We have two options for this. The first being we can supply a dedicated Euro to UK plug adapter, which prevents this or alternatively you can purchase our UK built FF3 unit, which we do not have this problem with. This would be supplied with a standard UK plug.German Electric Heaters

 

 

Why choose to go down the electric heating route

There are several options for heating a room. However, not all options are a practical for some properties. In addition, not all locations have the same energy sources, so that a choice must always be made. For example, for a property without access to mains gas, one can opt for an oil heating system. What if this property is too remote for regular deliveries? Then a great choice or the perfect balance is to opt for electric heating.

We are not talking about electric radiators here, which are wall mounted, supplying radiant heat and an element of convection heat, and tend to be storage heaters that use an electric heating element to create heat retention by warming up bricks or other thermal materials to store the heat until required.

Our German electric manufactured warm air heaters warm the cold air directly, unlike storage heaters, which use heat retention and require a charge up period, which means you’re always trying to predict tomorrow’s weather. With our units, if it’s cold, you put them on and they heat the surrounding air; if it’s not, you don’t—it’s as simple as that. You only use energy when it is needed! unlike storage heaters ( electric radiators) which use a heat retention system – that stored heat is often not required and thus wasted – that’s why we don’t consider these efficient electric radiators.

Below are just some of the benefits of using one of our German electric heaters; –

Clean and green – an electric heater, unlike oil or gas gives off no emissions.   They are 100% energy efficient; converting every bit of the input energy to heat. They also reduce environmental impact compared to other fuel types:

No installation costs – these Electric Heaters do not require any installation. You only have to plug the plug into the socket and the device is immediately ready for use – a  DIY installation as such, unlike wall mounted units.

High efficiency –  an electric heating system is very efficient, because the electricity used is directly converted into heat – there is no wasted energy as they are 100% efficient, which is good for lowering your energy bills.

Additional heatingelectric heaters are ideal when the existing heating system is not sufficient or more heat is required in the short term. Moreover, they are the perfect solution in the transitional period, i.e. in spring and autumn, when the temperatures are not so low that the central heating must be switched on

Safe to Use -Electric heaters are distinguished by different safety features such as overheating protection, with a thermostat to ensure full control of the temperature and come with a powder coated covering.

Portability – electric heaters are extremely versatile and more practical in different situations than other heaters. Therefore, they are often preferred by electric heating company or installers.

Quiet and discreet – with the exception of the fan, electric heaters have a very low noise level, therefore making them ideal for smaller rooms heating solutions.

Zonal Heating – because of their mobility, an electric heater is perfect for specific areas that require temporary or permanent heat for commercial properties.

 

Make life easy for yourself, with our German manufactured electric heaters, in most instances all you need is a power socket. However, for larger areas three phase models are also available giving large volumes of heat. There are no exhaust gases or smells – just large volumes of safe, fume-free heat. Electric heaters are ideal for virtually any location including

 

  • Offices
  • Shops and showrooms
  • Hotels
  • Garages
  • Industrial units
  • Classrooms
  • Clinics
  • Building sites
  • Marquees and tents
  • Storerooms
  • Workshops
  • Ships
  • Switching stations
  • Temporary accommodation
  • Modular buildings

 

The amount of space an electric heater can take care of for you will vary. Make sure you read do plenty of research before you buy one. Generally, this information will be displayed in square metres. You can easily calculate the square metres of a surface area by multiplying the length of it times the width, but this is the incorrect method , as you heat a cubic volume , thus you need the ceiling height to get the overall cubic volume to calculate the heat loss of the area – call us with this information- and we’ll run it through our heating calculator size programme to ensure the correct size German electric unit for both you or your happy customers.

You will find that many of our models of electric heaters also are very nice looking. They aren’t going to stand out like a sore thumb. Many of them are very small in size but you will be surprised at how much heat they are able to emit for you. They also take very little time to heat up so you won’t be waiting in the cold for that warmth to start circulating in the room.

Our range of German manufactured electric heaters can definitely offer you the additional warmth that you desire. With their in-built thermostat and two heat settings they will certainly save you energy as well with this high quality German engineering technology unit.

Should you require anymore assistance, information or a price on our range of  German Electric Heaters , please don’t hesitate to call us on 01202 822221 or click here for our email contact form.

Commercial Boiler

Commercial Boiler

commercial gas boilers; commercial lpg boiler; wall hung gas commercial boilers; commercial boilers in cascade; Worcester; price; vat; job;

A commercial boiler is a pressurized system that burn combustible fuel, either gas (natural or LPG) or oil to heat water that is then used to provide heat to your building. Commercial boilers work just like domestic boilers just that they are larger in output, some people say over 70 kW is a commercial boiler, whilst others say that anything over 50kW output is- there is no hard and fast rule to be honest. Some boilers use the actual hot water itself while others utilise water that has been turned to steam. Be it an hotel, school or hospital boiler, a district heating scheme or any industrial or commercial refurbishment of your heating scheme or project requirements, you can benefit from our vast experience in supplying commercial heating boilers in the UK and Ireland.

Inside the commercial boiler itself, the burner, whether it be natural gas / Propane (LPG) or Oil creates heat that is then transferred to the water via the heat exchanger. The process normally creates either hot water, depending on the type of commercial boiler. The hot water is circulated via pipes throughout your building. The water then enters radiators or other components that divide the heat thus providing the heating you require to keep your indoor spaces comfortable, just like a domestic boiler.

Our commercial boilers have energy efficiency, as you would expect from leading manufacturers and are normally used on pressurised systems

Natural gas is probably the most common fuel used in commercial boilers. Other types of boilers are available that burn fuel oil like diesel or heating oil. There are also boilers out there that use electric immersion heaters to produce heating from electricity-We also supply these

We do a full range of commercial boilers that can do heating and hot water for your commercial premises – these are detailed in more depth on these webpages

Commercial boilers – Gas fired – Natural gas or LPG 

Commercial boilers – Combi -heating and hot water in one unit – Gas Fired – Natural gas or LPG

Commercial boilers – Oil fired

Commercial boilers – Electric powered 

We at Flexiheat have the widest range in the UK, of efficient boilers for commercial heating and hot water applications, that provide maximum energy efficiency and low emissions for your installation.

Common components of commercial boilers

 

  • Burner: A burner is a device for the combustion of a fuel. For example, a fuel oil burner can be mounted on the boiler of a central heating system (oil heating). The burner produces a flame by pressing the fuel oil through a fine nozzle and supplying combustion air with a blower. In the burner start, the flame is usually ignited with an electric arc. The hot combustion gases enter the boiler, which effectively serves as a heat exchanger: the generated heat is transferred to the boiler water to a large extent. Similar burners are operated with natural gas. No atomization is necessary here, only a good mixing of gas and air. The correct dosage of the combustion air is important for a clean and efficient combustion. Ideally, the burner supplies exactly the required amount of air to the flame: by no means too little to allow complete combustion (without the formation of soot or carbon monoxide), but not too much to minimise exhaust gas losses

 

  • Combustion chamber: A combustion chamber is a component in which air and fuel are mixed, ignited and burned to heat the water. The chamber contains the burners and is specially designed to provide a safe and secure area for high-temperature combustion of volatile fuel. The chamber is commonly constructed of steel, cast iron or other heavy-duty metal.

 

  • Heat exchanger: The heat exchanger is an integral component that carries the heat created by the burners to the water in the boiler. Heat exchangers are commonly made of cast iron, stainless steel or copper.

 

  • Controls: System controls allow the user to calibrate water temperature, air and fuel supply mixtures, ignition and internal pressure. The controls regulate when and how often the burner fires, the temperature of the water, the rate at which fuel is used and the quality of the mixture of fuel and oxygen. Commercial boilers can also be fitted with appropriate safety controls that make sure that the internal pressures in the boiler doesn’t get too high, the water temperature stays within a safe range and ensures that the system continues to operate properly.

 

  • Exhaust stack: Also called the flue, the exhaust stack is the series of pipes that divert the exhaust gases away from the inside of the building to the outside. The exhaust stack must be constructed to ensure that any dangerous gases such as carbon monoxide are safely vented away from the interior of your facility.

 

 

Boiler Safety and Maintenance

Commercial boilers can be unpredictable systems containing very hot water under high pressure. Therefore, care must be taken to make sure the boiler is clean and working properly and that all safety systems are functional and ready to work if required. Hot water leaks can pose a serious risk of causing injuries or damage. Commercial boilers can potentially explode in the worst circumstances, which can result in serious injuries or even death as well as significant damage to your commercial facility.

It is imperative that your commercial boiler receives regular preventive maintenance from a professional heating engineer. This maintenance not only ensures the system works correctly and at its highest level of efficiency but that it also works safely.

Here at Flexiheat UK, we realise that finding and purchasing a new commercial boiler is a complicated business. This is made far worse by the confusing terms used to describe boilers. This is our guide to these commercial boiler technical terms, to help make your search easier.

Condensate

The term condensate is used regularly. Throughout the process of producing heat, the boiler will produce some condensation of the flue gases in a condensing boiler. This needs to leave your building or premises normally through an outside wall. In addition, some of the condensation will turn to liquid and need draining away. This is normally through a pipe that connects to your pre-existing drainage system.

Condensing Technology

This term has increased in popularity, as modern boilers are all fitted with condensing technology. This means it is capable of condensing the gas into heat for your business. The benefit of condensing technology is that a lot more of the waste gases are recycled and turned into more heat, which is far more cost effective and better for the environment.

Flow Rate

Flow rate is a term used to describe the amount of hot water that is produced in one minute. This is mainly relevant to combi-boilers, which do both the heating and hot water requirements. The higher the flow rate, the more water produced which means your boiler can work for less time and use less fuel. Essentially a commercial boiler with a good flow rate will save you money on your bills, whilst satisfying your hot water requirements . Commercial combi boilers are the ideal boilers for smaller commercial property applications.

ErP Rating

This term refers to the A++ to G ratings, shown on all new boilers. Referring to the boiler’s energy efficiency as well as its heating and hot water performance, the rating allows you to choose the most efficient boiler. A++ is the highest performing and G is the lowest.

SEDBUK Rating

This term means: Seasonal Efficiency of Domestic Boilers in the UK. It is a percentage rating for boiler efficiency and it has been added as part of the overall ErP rating.

 


We at Flexiheat UK hope this glossary helps make choosing a new commercial boiler a little easier. Don’t let the commercial boiler technical terms give you a headache!

For any help,advice, latest offers or more information , don’t hesitate to contact us today on 01202 822221 or click here for our email contact form.

Blow Heaters UK

Blow Heaters

Blow heaters are fundamentally any type of heater that is assisted via a fan – thus sometimes referred to as a fan heaters.  As the term suggests, heat is expelled at a higher rate resulting in faster movement of warm air thus ensuring a more efficient and accurate heat delivery.  There are a range of blow heaters on the market. The most common of these is Electric Fan Heaters  which function by heating a coil or a heating conduct or even ceramic heaters. The cold air is led along this heating coil and heated. A fan is then used to transport or circulate the heated air into the entire room.

Electric fan heaters are usually compact and space-saving, which means they can be used almost everywhere and are super-flexible as far as the location is concerned. Only a power connection and a little space is all that’s required.  They are used for heating rooms such as garages, greenhouses, tents and the like. They are often used as additional heating in the home or living area, because of their fast and effective way of heating the entire room.

Thermostatic control is an important element for controlling any fan heater, to ensure the heat is controlled to the required warmth level, and that the unit doesn’t over heats.


Blow Heaters

A fan heater is suitable to heat locations such as stock rooms in a shop to protect products from damp or freezing, or even heating the shop area to keep the customers warm. A fan heater can also be used as a garage heater warming the location to the desired level.

Common applications for fan heaters

Building industry • Heating and drying out rooms, often in conjunction with a dehumidifier.
Industry • Heating of offices, canteens, stores, warehouses etc.
Livestock • Heating poultry houses.
Horticulture • Heating of sorting areas and greenhouses.
Agriculture • Heating of livestock areas, dairy parlours, workshops and packing sheds.

For more information on our range of electric fan heaters, please click here

 

Other popular types of fan heater are ones fuelled by gas, usually propane or liquefied petroleum gas or LPG, for short. Most gas fan heaters use a so-called piezoelectric igniter. A material, often crystal quartz, which has the property of developing an electrical potential when pressure is applied is housed in a mechanism that allows a spring strike hammer. This action generates a spark, igniting the gas within the fan heater.

Blow Heaters

Common applications of a gas fan heater

Livestock •

Heating of pig and poultry houses and sheds

Agriculture •

Drying of agricultural products.

Horticulture •

Heating of greenhouses and polytunnels (N.B. Control CO2 and CO emission)

 

Control

Temperature control is a desirable feature in a gas blow heater. An automatic thermostat is a popular way to achieve this and some of the more sophisticated fan heater are fitted with a thermostat while others simply have a manual high and low flame control.

Safety

The main drawback of burning propane or other combustible materials, for that matter, in a small and enclosed space is the risk of carbon monoxide poisoning. Carbon monoxide is a product of irregular combustion. It is odourless and it competes with oxygen in the blood, which deprives the brain and other parts of the body of oxygen. Some propane heaters are approved for indoor use and some are not.

 

For more information on our range of gas fan heaters, please click here

 

 

The advantages of fan heaters

 

  • Fan heaters heat the room quickly and effectively to the desired temperature.

 

  • No additional work is required to operate a blow heater. Only one socket and some space should be available.

 

  • The purchase costs of fan heaters are manageable.

 

  • Most models are equipped with practical carrying handles or tramples, so even if the case is still warm, they can easily be moved locally.

 

  • The most compact design of the devices allows them to be used in a very small space.

 

  • Due to the existing “cold stage”, the units can be used as a fan in summer.

 

  • Integrated or external time switches allow time-controlled use.

 

  • Many appliances can be used as frost monitors without an external thermostatic control unit.

 

Should you require more price information or require anymore assistance or information on our range of Blow Heaters , please don’t hesitate to contact our sales team on 01202 822221 or click here for our email contact form. We always supply an inc vat invoice for all products, with inc vat at the appropriate current rate and no exclusions apply.

Commercial Heaters UK -A Guide to

Commercial Heaters – Your Options

Commercial heaters are frequently used in almost all the industries today right from manufacturing , car show rooms , retail units to warehouses . There is a variety of heaters that serve different purposes. As an unavoidable necessity, it is essential for businesses to install a commercial heating solution in their premises, to either keep they’re staff or customers , or even both satisfied. Commercial heaters can also be used to keep products above certain temperatures to ensure no damage to them , such as frost protection etc.

Installing them may be an easy task as you simply order the supplier or warm air heating installer to do so, yet the most challenging part lies in different types of questions and queries before installing-

Please go through the following points if you want to get the most out of your commercial heating equipment –

 

First of all, make an in-depth assessment of what your heating needs exactly are. Looking at the devices randomly may take you on the wrong route.

 

The following are the most common types of commercial heaters on the market based on fuel types

 

Commercial Gas Heaters and Propane(LPG) Heaters

 

Commercial Gas heaters burn a variety of either natural gas, propane (LPG),  natural gas (NG) or other gaseous fuels to generate heat. Early gas heaters were similar to the Bunsen burner in that both they used a flame to heat air locally. This heated air was spread by convection to warm an entire area. Later, the burner’s flame was used to heat a structure made of asbestos, a strong and incombustible fibre. Although asbestos structures have been replaced by fire clay and other refractory materials, modern gas heaters still operate according to this principle but the refractory materials have now been replaced by a combustion chamber and a heat exchanger, which means that any products of combustion are now expelled via a flue pipe system, being infinitely safer than the early days. They are often Co-Axial flued , or sometimes referred to as room sealed , whereby they take the air required for combustion form outside the building , via a twin piped flue system, this results in higher efficiency as the building is more air tight . Both natural gas commercial gas heaters and propane commercial heaters often use similar designs, the only difference is the gas burner.

 

commercial heaters

Commercial Suspended Gas Heaters – In a Garden Centre

 

According to their radius of effect, gas heating systems can be divided into two types: the so-called gas convector and gas-turbine heating.

 

With gas convector is heaters, which are used primarily for heating individual rooms. The heat generated by the combustion of the gas is then discharged directly to the environment. The gas-turbine heating, on the other hand, is generally used as a central heating system to supply entire buildings

Commercial Heaters

Commercial Gas Floor Standing Heaters – With Free Blowing Heads or Can be Ducted

 

Commercial Heaters – Gas or Propane – Applications

There are a broad range of different applications for gas and propane heaters. Below are just some examples;-

  • Industrial Applications
  • Warehouses
  • Workshops
  • Garages
  • Greenhouses
  • Offices and Shops 
  • Retail Outlets

 

Features

There are a whole host of optional features for gas heaters. Some are indirect-fired, some are corrosion resistant, some are finned and some are even explosion-proof others are designed to provide dynamic power regulation . They can feature custom designs or have a secondary heat exchanger ( condensing warm air heating) for maximum heat transfer. Gas heaters can also be fitted with an external temperature sensors and multiple / independent timing controls to suit the site conditions

 

Commercial Heaters – Oil – Gas Oil or Kerosene 

 

Oil commercial heaters predominantly burn fuel like heating oils such as gas oil or kerosene to generate heat but waste or used oils are also a popular fuel source.

Types

There are many different varieties of oil and kerosene commercial heaters.

Probably the most common are stationary cabinet’s types. These are usually floor mounted and either blow out warm air through their vents or through duct.

commercial heaters

Commercial Heaters – Oil Fired , with free blowing heads or ducted option

Another popular type is the suspended unit heater. These can either be wall mounted or suspended from the ceiling. These are advantageous options as they take up less space.

commercial heaters

Commercial Oil Heaters – Used in a Greenhouse Heating application

Operation

Oil and kerosene commercial heaters transfer heat to a room over a longer period of time and at a slower rate. When the oil burner is engaged, heating oil travels from the tank or reservoir to the burner by way of a pump where it becomes a fine mist mixed with air. The fuel/air mixture is then injected into the burner where it is ignited in the combustion chamber of the heater, which then transfers the heat via a heat exchanger to the space being heated.

 

Specifications

Oil and kerosene heaters use single-phase or three-phase power.

 

Applications

There are a wide variety of applications for oil heaters. Examples include;

 

  • Warehouse & Factory heating
  • Drying,
  • Melting,
  • Annealing or heat treating,
  • Curing or tempering
  • Operations with gases and vapours,
  • Clean water heating
  • Heat process and high-purity waters,
  • Lightweight oils & degreasing solutions,
  • Heavy & medium weight oils,
  • Mild & severe corrosive solutions,
  • Caustic solutions and liquid paraffin.

 

 

Commercial Heaters – Electric Heaters

 

Electric heating systems are  heaters which produce heat via heating wires or heating coils. They can be roughly differentiated according to whether they store the heat, store it in part or deliver it directly or whether the heat is generated by infrared radiation or by the heating of air.

 

Types

There are many variants of electric heaters. Below are the main types

1 – Natural convection

The portable heater with natural convection resembles a standard heater. It settles on the ground and heats up slowly.

Operation

  • Fresh air rises inside the cabinet by convection.
  • The air is then heated by an element.
  • The hot air exits through the openings and rises into the room.
  • There is no fan on this type of appliance.

Advantages

  • The natural convection heater keeps the temperature constant, provided the room is closed or not too large.
  • Silent.

Meets the needs

  • Ideal for use for several hours at a time, for example, at the chalet or at night, in a room when the central heating of the building is switched off.

 

2 – Forced Convection or Blow Heaters

 

The forced convection heater, also referred to as forced air or blow heaters are a very popular model. These heaters are often small and light and distribute the heat with a fan.

 

Commercial Heaters

Commercial Electric Heaters

 

Operation

  • A fan moves the air around the heating elements and pushes it forward.
  • In ceramic models, electricity passes through ceramic plates that store heat in their mass, and then a fan spreads it.

 

Benefits

  • Small and light.
  • Rather stable temperature in a closed room.
  • Heat sensation faster than with fanless model.
  • Allows directing of heat.

Meets the needs

  • Ideal for rapid heating distributed throughout a room, even when the area to be heated is large, then we do commercial electric heaters with an heat output of 80 kW , which we think are the largest portable electric heater on the UK market to date

Commercial Heaters

Commercial Electric Heaters – This is our 80kW portable electric heater

 

 

3 – Commercial Heaters -Radiation (radiant heating)

 

The radiant heater, also called radiant heating, often looks like a standing fan or cabinet heater. It heats according to the same principle as the lamps used on terraces. It can therefore heat a person very quickly!

Commercial Heaters

Commercial Portable Electric Infrared Heater

 

Operation

  • Uses a very hot element, usually halogen or quartz.
  • The element produces an infrared wave that quickly gives a sensation of warmth in a precise direction.

Benefits

  • Quiet.
  • Sensation of immediate heat, much like the rays of the sun on a winter day; Warms bodies and objects, but not directly air.
  • Allows directing of heat.

 

Meets the needs

  • Ideal for directly heating a person in a room with a high ceiling (because hot air is rising) or in a room where there are drafts. Because of the risk of burns, it is not ideal when there are young children or elderly nearby.

 

Features

Some of the key features of electric heaters are portability, precision temperature monitoring & control and design flexibility

 

Applications

Electric commercial heaters are commonly used throughout industrial and consumer products to heat all types of liquids, gases, vapours, and solids. In consumer products, electric heaters are commonly used for heating water, air and even flooring. Industrial warm air heating applications can utilize much higher wattages and these industrial electrical heaters can be used for applications such as heat treating for pest control , for drying of products etc, as well as standard space heating

 

Advantages of Commercial Electric Heating

  • Low cost in purchase
  • Low installation costs, since no piping necessary
  • No space required for burner or fuel storage
  • No chimney
  • Maintenance costs are eliminated
  • Good solution for temporarily heated rooms or buildings
  • No or little dust swirling, good for allergy sufferers

 

How to calculate how much heat you require , to get your correct commercial heaters or heater

Once you have determined the type of heater for you building you then need to work out which size you require. This can be achieved in the form of a simple heat loss calculation. The most important factors to consider are the dimensions of the building, the length, width and average height. There are a number of online calculators that you can use to work out the heat requirements.  The answer will typically be given in kW (kilowatts) of BTU (British Thermal Units)

Once the appropriate type of commercial heater has been decided and then installed it is advisable to appoint experienced operators at your factory premises so that they can ensure the heater(s) function correctly

Space plays a vital role as far as the correct installation of these apparatuses is concerned. Take measurement of the space where the device or devices are to be installed.

Let us help you choose the right commercial heater that’s best for your business

No single heating system is the right option for each and every commercial property. The size and location of your business, as well as the size of your budget, will all factor in to your decision. At Flexiheat UK we are ready to provide you with expert advice to help you select the commercial HVAC system that fits your business needs. Call us now or contact us via email