AUTOTERM Air 4D Diesel Heater Kit (12V & 24V)

FREE Silent Fuel Pump Included

Upgrade your heating system with the AUTOTERM Air 4D 4kW Diesel Heater Kit, now supplied with a FREE Silent Fuel Pump for quieter operation and improved comfort.

Designed for larger vehicles and marine applications, the AUTOTERM Air 4D delivers powerful, fuel-efficient heating with exceptional reliability, making it one of the most popular diesel heaters in the AUTOTERM range.

Please Note: This kit does not include ducting, air vents or a mounting bracket, allowing you to customise your installation to suit your vehicle or vessel.

Powerful Heating for Larger Vehicles

The AUTOTERM Air 4D is ideal for heating larger spaces quickly and efficiently, making it the perfect choice for:

• Campervans

• Motorhomes

• Commercial vans

• Trucks & HGVs

• Off-road and expedition vehicles

• Horseboxes

• Plant machinery

• Boats and yachts up to 15 metres (48ft)

The heater draws fresh air from outside or a well-ventilated area, heats it rapidly and circulates warm air throughout your vehicle or boat, ensuring a comfortable environment even in the coldest conditions.

Built for Reliability

Manufactured to the highest standards, every AUTOTERM heater is designed for dependable performance in demanding environments.

The Air 4D is built to ISO 9001:2015 quality standards and is fully approved to:

• E2 R10

• E2 R122

making it suitable for installation in road vehicles and marine applications.

Each heater is supplied with the latest control unit featuring an integrated High Altitude Sensor, automatically optimising performance at higher elevations.

Efficient, Powerful & Economical

Delivering up to 4kW of heating power, the Air 4D can circulate up to 168m³ of warm air per hour, making it ideal for larger living and working spaces.

Despite its impressive output, fuel consumption remains exceptionally low, using as little as 0.12 litres per hour, with a maximum of only 0.51 litres per hour at full power.

The brushless induction motor provides:

• Quiet operation

• Long service life

• Low maintenance

• Reliable performance

• Operation in temperatures as low as -45°C

Flexible Installation & Easy Control

The AUTOTERM Air 4D can be installed in a wide range of vehicles and boats and is compatible with a choice of AUTOTERM controllers.

The heater can be operated using:

• AUTOTERM Control Panels

• AUTOTERM Comfort Control

• AUTOTERM Comfort Touch

• OLED Controller

• Optional smartphone control via iOS & Android (remote modem sold separately)

What's Included

• Genuine AUTOTERM Air 4D 4kW Diesel Heater

• FREE Silent Fuel Pump with mounting bracket

• 1 metre exhaust pipe with integrated silencer

• Fuel standpipe (fuel pick-up)

• Fuel line

• Main power cable with integrated fuse holder

• 4 metre controller cable

• Fuel pump wiring cable

• Combustion air intake silencer

• Exhaust heat protection sleeve

• Full fitting kit including nuts, bolts and installation hardware

Technical Specifications

Please Note: The heater weight is approximately 5.5kg. (Some older listings incorrectly state 25.5kg.)

Why Choose AUTOTERM?

• FREE Silent Fuel Pump included

• Genuine AUTOTERM quality

• High Altitude Sensor as standard

• Ultra-reliable brushless motor technology

• Low fuel and power consumption

• Quiet operation

• Suitable for extreme temperatures down to -45°C

• E2 R10 & E2 R122 certified

• 3-Year Manufacturer's Warranty

• Genuine UK technical support and after-sales service

• Extensive range of spare parts and accessories available

Whether you're travelling across Europe, working in harsh conditions or enjoying weekends away in your campervan, the AUTOTERM Air 4D 4kW Diesel Heater Kit provides dependable, efficient heating you can rely on all year round.

Frequently Asked Questions

Is the AUTOTERM Air 4D suitable for a motorhome?
The AUTOTERM Air 4D is ideal for larger motorhomes, campervans and other vehicles that need powerful diesel heating.

Does this kit include ducting and vents?
No, this kit does not include ducting, air vents or a mounting bracket, so you can customise the installation.

Is the heater available in 12V and 24V?
Yes, this AUTOTERM Air 4D diesel heater kit is available in both 12V and 24V versions.

What makes this a good choice for motorhome diesel heating?
It combines 4kW output, low fuel consumption, quiet operation and reliable performance for larger living spaces.