Startup still needs charged batteries or a compatible external DC source, and the heater still burns diesel. Self-generating applies after successful ignition and stable operation.
A heater is one item. A heating system is four.
Most diesel air heaters burn fuel for heat but still draw continuous 12 V power for the controller, fan, fuel pump and glow plug. That power has to come from somewhere, and it comes out of your load space and your budget.
Conventional diesel heater
What you actually pack and wire up
The heater unit
A leisure battery or portable power station
Cables, fuses and adapters
Mains charging before every trip, and a plan for recharging on longer ones
Four things to buy, carry and keep charged
Run time is limited by the battery, not by the fuel.
E-CORNER
What you pack and wire up
The heater unit, with thermoelectric generation built in
Four startup cells, charged before you leave
Two things, and one of them lives in the heater
After stable operation, run time is limited by fuel and safe operating conditions.
Both models share the heating output, the control logic and the self-generating system. Choose on fuel capacity and how much space you have.
MH-04D
Extended use
The larger tank means fewer refuelling stops. Suited to base camps, remote cabins and multi-day field work where the heater stays put.
Fuel tank
4.5 L
Weight
14.5 kg
Dimensions
420 × 265 × 330 mm
Heat output
0.9–3.5 kW
GMH-04D
Compact and mobile
1.5 kg lighter and shorter in every dimension. Suited to vehicle load spaces, ice-fishing shelters and anywhere the heater moves with you.
Fuel tank
3.8 L
Weight
13 kg
Dimensions
410 × 265 × 280 mm
Heat output
0.9–3.5 kW
A thermoelectric module produces electricity from a temperature difference across it. In the E-CORNER heater, the burner supplies the hot side and ambient air the cold side, so the same combustion that warms your tent also runs the machine.
1
Start
Four charged 26650A cells, or a compatible external DC source, power the controller, fan, fuel pump and glow plug. Battery startup needs a displayed voltage above 15.0 V.
2
Ignite
Diesel combustion begins and the heater starts at output level 7. First ignition can take longer while fuel reaches the burner.
3
Generate
Once combustion is stable, heat crosses the thermoelectric module and part of it is converted into electrical energy.
4
Run
That generated power supports the heater’s normal electrical demand. If you started from an external supply, disconnect it after five minutes of stable operation. If you started on batteries, there is nothing to disconnect.
Generation depends on heater temperature, output level, ambient conditions and equipment condition. The heater does not run indefinitely: fuel supply and safe operating conditions set the limit.
Rated for ambient temperatures down to −40 °C, with the exhaust system installed and discharging outdoors.
Off-grid camping
Hunting camps
Ice fishing
Overlanding
Remote cabins
Field work
Emergency heating
Actual performance varies with output level, altitude, ambient temperature, fuel quality and heater condition.
Specification
MH-04D
GMH-04D
Heat output
800–3000 kcal/h (0.9–3.5 kW / 3,175–11,905 BTU/h)
800–3000 kcal/h (0.9–3.5 kW / 3,175–11,905 BTU/h)
Output levels
1–9
1–9
Fuel
Clean diesel
Clean diesel
Fuel consumption
0.10–0.38 L/h
0.10–0.38 L/h
Electrical consumption
<40 W
<40 W
Rated voltage
16.8 V DC
16.8 V DC
Startup power
4 × 26650A cells, or compatible external DC
4 × 26650A cells, or compatible external DC
Noise
<65 dB
<65 dB
Operating temperature
−40 °C to +40 °C (fuel pump to +50 °C)
−40 °C to +40 °C (fuel pump to +50 °C)
Fuel tank
4.5 L
3.8 L
Weight
14.5 kg
13 kg
Dimensions
420 × 265 × 330 mm
410 × 265 × 280 mm
Supplied
Remote control, exhaust elbow, silencer and pipe sections, heat shields, air ducts and insulation sleeves, funnel, hex key, charger, external power lead, 4 startup cells, storage bag
User manual
Exhaust installation
Fitting the elbow, silencer, pipe and heat shields
Startup and shutdown
Including the cooling cycle
Remote control pairing
Five-step sequence
Fault codes
E-1X to E-8X, with user checks
Safety information
Carbon monoxide, fuel and battery handling
Talk to us before you guess.
For a fault code, an installation question or a warranty claim, send your model, serial number, purchase date and a description of what the heater is doing.