Description
AUTOTERM Air 4D 4kW UNIVERSAL Diesel Heater Campervan & Motorhome Kit
The AUTOTERM Air 4D (formerly PLANAR 44D) is made for vehicles that need more heat than a 2kW heater can give, such as larger campervans, motorhomes, commercial vehicles, workshops and boats. This universal kit supplies the parts for the installation, in 12V or 24V.
Key points
- Adjustable output from 1kW to 4kW, up to 168 m³/h of warm air
- 12V or 24V
- Controller of your choice included
- Internal or external mounting kit to choose
- Brushless induction motor; operates down to -45°C and up to 4,200m
- ISO 9001:2015 built; E2 R10 and E2 R122 approved
- 3-year manufacturer warranty
What’s in the kit
- Controller of your choice
- Fuel pump with mounting bracket
- 1m exhaust pipe with silencer
- Fuel standpipe and fuel line
- Power cable with built-in fuse box
- 4m control panel cable
- Fuel pump power cable
- Air intake silencer
- Exhaust heat lagging
- Complete fixing kit with nuts and bolts
Internal mounting option
- Turret mounting plate
- 90mm air vent
- 1m of 90mm ducting
External mounting option
- Stainless steel external heater box
- 2 x 90mm air vents
- 2m of 90mm ducting
Specifications
| Specification | Value |
|---|---|
| Voltage | 12V or 24V |
| Heating output | 1.0-4.0kW |
| Heated airflow | 70-168 m³/h |
| Power consumption | 10-57W |
| Fuel consumption | 0.12-0.51 litres/hour |
| Maximum operating altitude | 4,200m |
| Heater dimensions | 402 x 157 x 188mm |
Good to know
Choose 12V or 24V, your controller, cable, carbon monoxide alarm and mounting (internal or external) from the options above the description.
This listing is for the 4kW Air 4D. For smaller vehicles, see the 2kW Air 2D universal kit.
Frequently asked questions
Which heater is right for my campervan?
The Air 4D suits larger campervans, long-wheelbase vans, high-top conversions, motorhomes and larger boats. Smaller campervans are generally better served by the 2kW Air 2D.
Is it available in 12V and 24V?
Yes, choose from the options above.
Would it suit a Transit Custom conversion?
The Air 4D is best for larger layouts; for smaller conversions such as a Transit Custom, the 2kW Air 2D may be more appropriate, depending on the size of the insulated space.





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