AUTOTERM 4kW Heater Only-1
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AUTOTERM 4kW Heater Only

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£425.00 GBP
£425.00 GBP

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AUTOTERM Air 4D 4kW Diesel Air Heater (Heater Only)

IMPORTANT NOTE:
This listing is for the heater unit only. It does not include the wiring loom, fuel pump, fuel line, mounting hardware, nuts, bolts, or any installation accessories.

Product Overview

The AUTOTERM Air 4D is one of the most popular diesel-powered heaters in the AUTOTERM Air Series. It draws fresh air from outside (or from a well-ventilated space), heats it rapidly, and provides reliable warmth in cold environments.

With a maximum heat output of 4kW, the Air 4D can heat up to 168m³ of air per hour, maintaining a comfortable temperature even in larger spaces.

Ideal for installation in:

  • Large truck cabins
  • Commercial vehicles
  • Cargo compartments
  • Campervans
  • Motorhomes
  • Boats and yachts up to 15m (48ft)

Key Features

  • 4kW maximum heating output
  • Heats up to 168m³/hour
  • Compact, versatile design for easy installation
  • Extremely fuel efficient
  • Quiet brushless induction motor
  • Long service life
  • Smartphone control compatible (modem sold separately)
  • Suitable for 12V or 24V systems (depending on model)

Fuel Economy

Despite its powerful output, the AUTOTERM Air 4D consumes just:

  • 0.51 litres of diesel per hour (at maximum power)

This makes it an economical heating solution for larger vehicles and marine applications.

Brushless Motor Technology

All AUTOTERM Air Series heaters use brushless induction motors, providing:

  • Lower operating noise
  • Longer service life
  • Reliable performance
  • Operation in extreme temperatures

Remote Control

The heater can be operated using a range of AUTOTERM control panels or remotely from your iOS or Android smartphone using the optional AUTOTERM remote control modem (sold separately).

Built for Extreme Conditions

Reliability

  • Operates in temperatures as low as -45°C (-49°F)

High Altitude Performance

  • Integrated high altitude sensor
  • Suitable for operation up to 4,200 metres

Extended Warranty

When installed and registered by a certified AUTOTERM service centre, the warranty is extended to:

  • 3 years, or
  • 2,000 operating hours

What’s Included

  • 1 × AUTOTERM Air 4D 4kW Diesel Air Heater (Heater Only)

Please note: No installation kit, wiring, fuel pump, fuel line, or mounting hardware is included with this heater-only package.

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AVL is was founded by Paul and Owen in the UK. Having always loved camping and exploring remote landscapes, we pushed ourselves to do extreme locations. But we kept running into the same problem—products simply weren't built to handle the extreme conditions we travelled to. Unreliable gear in harsh environments meant, lack of comfort, constant frustration and safety concerns.

That's why we started testing everything ourselves in the world's most demanding conditions. Last winter, we pushed our Unimog to the Arctic Circle, enduring temperatures below -48°C. This year, our testing team heads to Africa to continue proving what our gear can truly handle.

We're committed to bringing you only products we'd trust with our own expeditions. Which, regardless of the manufacturer warranty we offer a 3-year warranty on EVERYTHING.

Paul Stevens, Director