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Autoterm Diesel Air Heater 12volt 4Kw with Digital Controller

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AUTOTERM 4D - with Full Install Kit for One Outlet

To ensure the best quality possible, we test our heaters in 2 stages:

  1. All heaters pass the cold test to check their Electrical resistance and ensure that every internal component is fully operational.
  2. Secondly, each heater is tested in real-life Environments for 30 minutes to measure the temperature of the generated airflow and the temperature and CO2 amount from emissions to ensure that every heater works according to guidelines.


  • Works on diesel fuel
  • Maximum heating power of 4 kW for 12V model
  • Can heat up to 120 m3 with hot air in one hour
  • Used to heat large size space
  • Reliable operation in low temperatures (up to -45°C/-49°F)
  • Low noise level, low fuel consumption (Max – 0,51 l/h), implemented self-diagnostic
  • Can be operated with control panel or via smartphone with additional modem
  • Best suited for medium or large size truck cabins, commercial vehicle cabins, cargo compartments, campers with large canvas areas, large motorhomes, boats/yachts (up to 48 feet/15 m long), garages, mountain houses, converted shipping containers
AUTOTERM 44D is one of the most popular diesel-powered air heaters from AUTOTERM series. The heater unit draws fresh air from the outside or from a well-ventilated room, then heats it up quickly, thus providing comfort and warmth in low temperature environments. The heater’s maximum power output is 4 kW, and it is capable of heating up 120 m3 space hourly, and maintaining your desired temperature. AUTOTERM 44D is highly versatile when it comes to installation and can be easily retrofitted in almost any land vehicle, marine transport vehicle, or fixed premises and is supplied with a full installation kit, whether you choose the 12V or the 24V DC version. AUTOTERM 44D with its economic fuel consumption of 0.51 l/h on maximum power is a highly rated product for its low and reasonable price. All AUTOTERM series heaters are equipped with brushless induction motors that ensure low noise levels as well as a long lifetime for the device and the capability to operate in extreme environments and temperatures as low as -45°C/-49°F. AUTOTERM air heaters can be controlled with various control panels or remotely via your iOS or Android smartphone (remote control modem sold separately). This is a great product for those who need to additionally heat large truck cabins, commercial vehicle cabins and cargo compartments, campers with large canvas areas, large motorhomes, garages, mountain houses, converted shipping containers or boats/yachts of up to 48 ft/15 m.
Air heater AUTOTERM-44D Modes
Technical characteristics High Low
Heat power, kW 4,0 1,0
Fuel consumption, l/h 0,51 0,21
Rated power consumption, W 62 10
Heated air volume, m3/h 120 70
Fuel Diesel Fuel, Alpine Diesel Fuel
Rated voltage, V 12
Control mode Manual, standard remote control, modem
Weight, kg 11.4 full set, 5.5 heater only
Full Install Kit includes: Heater and Controller, Fuel Pump and 6m Cable, Power Cable with Fuses 6.5m, Controller Cable 1.8m. Air Intake Hose 65cm and Air Intake Silencer 18cm, Fuel Pump Rubber Holder, Supporting Brackets, Mounting Base Plate, Clamps and Screws, Muffler with Mounting Kit, Fuel Hose 10m, Spiral Wound Exhaust Pipe 1m, Heat Insulation 45cm, Fuel Standpipe 68cm, Air Intake grill, Heater Vent, Heater Ducting 1.2m. 12 Volt, 3-5kw Heater, 4Kw, Autoterm, Complete Kits - Diesel, Diesel, Diesel Air Heater, Diesel Heater, Planar
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