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Description
Autoterm 4D Diesel Air Heater 4kW 12V with Digital ControllerThe Autoterm 4D Diesel Heater Turns a Freezing Cab Into Somewhere You Actually Want to Sleep 4kW Diesel Heat Heats up to 120m h 12V Fires down to 45C 3 Year Warranty It's 3am and you can see your breath. The engine's off, the little fan heater's flattened your battery, and you're lying there in every layer you packed, still cold. Idling the diesel just to take the edge off feels like a mug's game, and that cheap no name heater you tried last winter
The Autoterm 4D Diesel Heater Turns a Freezing Cab Into Somewhere You Actually Want to Sleep
4kW Diesel Heat | Heats up to 120m³/h | 12V | Fires down to -45°C | 3-Year Warranty
It's 3am and you can see your breath. The engine's off, the little fan heater's flattened your battery, and you're lying there in every layer you packed, still cold. Idling the diesel just to take the edge off feels like a mug's game, and that cheap no-name heater you tried last winter spat fault codes and carked it.
The Autoterm 4D sorts that for good. A genuine 4kW of dry diesel heat, sipping as little as 0.21 litres an hour, running straight off your tank and a 12V feed. Set your temperature, roll over, and wake up to a warm cab instead of a cold one.
Why Tradies & Campers Rate the Autoterm 4D Diesel Air Heater
Genuine 4kW, not eBay watts
Every unit is bench-tested cold, then run for 30 minutes to check airflow temperature, emissions and CO² before it leaves the factory. It moves up to 120m³ of warm air an hour, plenty for a big motorhome, a dual-cab cabin, a shed or a boat up to 15 metres.
Sips fuel, spares your battery
On low it draws around 10W and burns roughly 0.21 L/h. It'll run all night off your existing diesel tank without flattening the cranking battery or emptying a gas bottle.
Starts when it's brutal
Reliable firing down to -45°C, with a brushless induction motor built for the long haul. That's the bit where the cheap units quietly give up.
Run it your way
Comes with the digital controller out of the box. Add the optional modem and you can fire it up from your phone by app or SMS before you've even walked back to camp.
The whole install kit's in the box
Full one-outlet kit: fuel pump, ducting, muffler, exhaust, 10m fuel hose, brackets, clamps and the lot. No chasing extra bits to get it mounted.
Autoterm 4D Specs
| Model | Autoterm 4D (44D) |
| Heat Output | 1.0 - 4.0 kW |
| Heated Air Volume | Up to 120 m³/h |
| Fuel | Diesel |
| Fuel Consumption | 0.21 - 0.51 L/h |
| Power Draw | 10 - 62 W |
| Voltage | 12V DC |
| Min Operating Temp | Down to -45°C |
| Controller | Digital Controller (included) |
| Motor | Brushless induction |
| Weight | 5.5 kg heater / 11.4 kg full kit |
| Best Suited To | Large cabins, motorhomes, sheds, boats up to 15 m |
| Warranty | 3 Years |
What's Included
Everything you need is in the box with your Autoterm 4D Diesel Air Heater from True Gear
- Autoterm 4D heater unit
- Digital controller + 1.8m cable
- Metering fuel pump + 6m cable
- Power cable with fuses (6.5m)
- Muffler with mounting kit
- Exhaust pipe (1m) + heat insulation
- Fuel hose (10m) + standpipe
- Air intake hose + silencer
- Mounting base plate & brackets
- Clamps, rings & screws
- Air intake grille & heater vent
- Hot air ducting (1.2m)
Not Sure Which Diesel Air Heater Suits You?
Rough rule: the 4D is the one for bigger spaces, large motorhomes, dual-cab cabins, sheds, converted containers and boats up to 15 metres. If you're only heating a small camper, troopy or tinnie, the smaller Autoterm 2D will do the job on less fuel. Not sure? Give us a bell and we'll point you to the right one for your setup.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy