Autoterm 4D Diesel Heater
Autoterm 4D Diesel Heater – 4kW Professional-Grade Diesel Air Heater
The Autoterm 4D Diesel Heater is a premium European-engineered diesel heater from Autoterm's proven Air series — a step up from entry-level diesel heaters in build quality, reliability, and service life. At 4kW maximum output with a 168m³/h hourly air volume, it heats suits large caravans, motorhomes, trucks, and boats up to 15m.
The brushless induction motors mean extremely low noise, long operational lifespan, and reliable performance in extreme conditions down to -45°C. This is the heater for buyers who want assured quality and don't want to compromise.
Key Features
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4kW Maximum Output 168m³/h of hot airflow per hour — heats large spaces quickly
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Brushless Induction Motors Low noise, long service life, extreme environment capability
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Operates to -45°C Reliable performance in any New Zealand condition
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Economical Fuel Use Only 0.51L/h at maximum — excellent efficiency for the output
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OLED Control Panel Clear, easy-to-read display with intuitive controls
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12V DC Operation Low electrical draw — suitable for solar/battery setups
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Complete Installation Kit Heater, control panel, fuel intake, 1m ducting, floor plate, 2 vents
Add to cart — premium diesel heating built to last.
Brand: Autoterm
Voltage: 12V DC
Fuel Type: Diesel
Heating Power: High: 4kW / Low: 1.0kW
Air Volume: High: 168m³/h / Low: 70m³/h
Power Consumption: High: 57W / Low: 10W
Fuel Consumption: 0.51L/h (maximum)
Heater Weight: 5.5kg
Dimensions: 402×157×188mm
Kit Includes: Heater, OLED control panel, installation kit, fuel intake, 1m ducting, floor plate, 2 vents
How does Autoterm compare to AUFocus?
Autoterm is a European-manufactured heater with a strong reputation for quality and longevity — it's the premium option. AUFocus is an Australian-market brand offering excellent value at a more accessible price point. Both are reliable — the choice comes down to budget and preference for European vs Asian manufacturing. For buyers who tour extensively, Autoterm's build quality and service network are reassuring.
Does this require a separate fuel tank?
Yes. A diesel fuel tank is not included. The AUFocus 5L or 9.5L tanks (in our Heaters section) are compatible, or any suitable diesel fuel tank with the correct fuel line connection.