Larger Output Indirect Mobile Warm Air Heaters – Oil or Gas -HM Series

Indirect fired mobile warm air heaters – oil or gas fired

Larger Output Indirect Mobile Warm Air Heaters – Mobile and instantly ready to use – The HM series is an exciting and innovative range of robust, versatile, and highly efficient indirect oil or gas fired mobile and portable warm air heat generators with outputs 100kW or 200kW, as standard and larger outputs on request.

They are especially suitable for warm air heating of various locations, such as large marquees, building sites, warehouses ,construction sites, outdoor events and marquees, temporary storage facilities, crop drying, frost protection, warehousing, plant and building refurbishment, process heating, building drying and dehumidification, ship building and refitting, garages, temporary heating within industrial and commercial units, greenhouses and agriculture, in theatre military uses, and many more, as an additional, temporary or replacement heating unit.

Indirect fired diesel or gas warm air heating

The Kroll range of HM indirect oil or gas warm air mobile site heaters are a highly fuel efficient indirect site heater providing a fast and effective solution to a wide range of applications requiring 100%  CO2 fume free heating. Due to thermostatic controls, the unit can be left to run unattended for long periods of time, for a fully automatic heating system, or even a frost protection system.

The Kroll warm air heater is of a compact construction. There are no parts protruding from the casing, the flue gas connection is countersunk. The air inlet and air outlet fittings can be stored internally for transport. The unit has got fork lift openings on all sides and lifting eyes are fitted as standard, and the models within the range are designed so they can be stacked when not in use. Another benefit for rental companies, is that the units fits crossways on a standard lorry as it is easily and safely stackable.

All components of the unit, such as burner, fan, control box etc. are enclosed within the robust housing, meaning the heating unit is therefore protected against abuse or misuse by any unauthorized persons.

Furthermore, the model HM200 can be operated with a diesel oil burner, natural gas burner or LPG burner. They are also available as two-stage burner versions (not the HM100 model)

Large output Indirect warm air heater for temporary or permanent heating applications – shown here working externally in very cold weather conditions warming a temporary structure from Flexiheat UK

Thermostat temperature remote control

Set the desired room temperature via the optional remote thermostat. The warm air space heater heats up. When the internal temperature of the appliance reaches +40 °C (factory setting), the fan is set into operation and blows warm air out. When the desired room temperature is attained, the burner turns off. When the ambient temperature drops below this level, the burner is immediately turned back on.

The characteristics and advantages of these large mobile heat generators

• Can be used in winter at low negative temperatures.
• Installation outside and a chimney are required.
• HM series mobile heat generators use diesel fuel or gas—natural or LPG—as fuel.
• high-temperature stainless steel heat exchanger and combustion chamber.
• These heat generators can work well with an air duct system because they have a high-pressure fan.
• It can be equipped with a room thermostat, a heated fuel tank, or a timer.
• For outdoor installation, recirculation of heated air is possible.
• At the request of the customer, it is possible to manufacture according to the required parameters.
• For easy transport on a lorry , there are transport brackets on the body.
• The mobile heat generator is delivered fully equipped and ready to work.

Highly efficient and economical heating of warehouses or construction sites

The energy is converted directly and with a degree of efficiency of 93 %. Due to the variable air intake, the units can operate with recirculated air, fresh air or a mixture of both. The elevated pressure of 350 – 400 Pa allows the use of long warm air hoses.

The heat can be distributed via one single or several warm air hoses, this feature gives you more options in locating the heater on site. The casing is galvanized and painted in a colour similar to RAL 7047. The unit is easy to maintain, all component parts are positioned in a clearly arranged manner, and, thanks to removable side panels, easy to reach.

These Kroll larger output indirect mobile warm air heaters, with its construction and equipment components fulfils the special needs and demands of the rental market for high functionality, cost-effectiveness and long-term service life.

Download the Mobile Heater Brochure – Flexiheat UK