Autoterm 9D
The Autoterm 9D is the most powerful diesel air heater in the Autoterm range, delivering a massive 8kW of heat[…]
Read moreWhen it comes to rapid cabin warmth and efficient moisture control on a vessel, diesel air heaters are the industry standard for year-round cruising. These systems function by drawing air from the cabin or an external source, passing it through a high-efficiency heat exchanger, and distributing dry, heated air through a network of ducting. For boaters on the UK canal network or coastal waters, this provides a “set-and-forget” heating solution that can be controlled via thermostatic panels or mobile apps, ensuring a warm welcome before you even step on board.
Explore the leading manufacturers of forced-air heating systems available through Marine Heating Solutions:

Wallas: The pinnacle of silent heating. These Finnish-built units feature a unique paraffin/diesel combustion process that is virtually silent.

Webasto: The Air Top range (2000 STC, Evo 40/55) is legendary for quiet operation and low fuel consumption.

Autoterm: Known for the rugged Planar (2D/4D) units, offering exceptional reliability and easy maintenance
See all our boat diesel air heaters in no particular order below. This is a collection of compatible models across our range; for more detailed listings and technical specifications, please follow the main menu to our manufacturer-specific pages.
Diesel air heater installations require precision, particularly regarding fuel delivery and exhaust routing. To maintain compliance with the Boat Safety Scheme (BSS) and Canal & River Trust (CRT) regulations, all exhaust systems must use marine-grade skin fittings to prevent carbon monoxide ingress.
We strongly recommend that all units are commissioned by an OFTEC registered technician. This ensures your installation meets the latest fire safety standards and protects your vessel’s insurance validity. Proper ventilation and fuel line integrity are paramount when installing systems from brands like Webasto and Eberspächer to ensure long-term reliability on the water.

The Autoterm 9D is the most powerful diesel air heater in the Autoterm range, delivering a massive 8kW of heat[…]
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The Autoterm 4D (formerly the Planar 44D) is a robust 4kW diesel air heater, engineered for medium to large vessels[…]
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The Webasto Air Top Evo 55 is a high-performance diesel air heater specifically designed for larger marine vessels up to[…]
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The Webasto Air Top Evo 40 is a high-capacity diesel air heater engineered for larger boats up to 45 feet.[…]
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The Webasto Air Top 2000 STC is widely regarded as the industry standard diesel air heater for smaller marine vessels,[…]
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The Wallas Viking room-sealed boat diesel heater is a top-tier heating appliance designed for optimal performance in diverse maritime environments.[…]
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The Wallas Spartan is a state-of-the-art, room-sealed twin-outlet diesel heater that offers advanced climate control for modern vessels. Engineered for[…]
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The Wallas 220D Blower Lid is a specialised accessory designed to expand the utility of your boat’s galley. By integrating[…]
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The Autoterm 2D (formerly the Planar 2D) is a compact, highly efficient 2kW diesel air heater, widely regarded as the[…]
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