Diesel air heater for trucks, buses, trailers, RVs, boats, motorhomes, and vans, 12V 2KW to 8KW and 24V 2KW to 8KW models, interior and engine preheat capable, includes installation kit with oil pump, tank, and fittings, red and black colour option
Diesel-Powered 12V and 24V Air Heater Kit for Truck, RV, and Boat Cabin Heating

Operating efficiently in ambient temperatures from 0 to 40 degrees Celsius, this diesel-fuelled air heater serves a dual purpose for vehicle owners. Its primary function is interior heating, transforming the cabins of trucks, vans, buses, motorhomes, trailers, and boats into comfortable spaces. A significant secondary benefit is engine preheating; by warming the engine coolant prior to a cold start, it helps reduce mechanical wear and tear. Available in a spectrum of power outputs—2KW, 5KW, and 8KW versions for both 12V and 24V DC electrical systems—it allows for precise matching to your vehicle's size and thermal demand. Supplied as a comprehensive kit inclusive of all necessary installation components, it presents a practical upgrade for professional drivers and recreational users alike.
Features and Construction

This heater is defined by its practical specifications and the completeness of its accompanying parts. The build prioritises a compact structure to facilitate installation in various vehicle engine bays or compartments.
Material and Build
The core heating unit is built around a combustion chamber and heat exchanger, though specific internal materials are not detailed. Key supplied components demonstrate a focus on durability and functionality: a metal exhaust pipe handles hot gases, a metal host installation board provides a secure mounting point, and silicone seals ensure airtight connections. The fuel delivery system uses a combination of plastic hoses and metal fittings, secured by an array of small, medium, and large hose clamps.
Size and Practical Fit
While the exact dimensions of the heater unit itself are not specified, its design is described as compact, aiding integration into often-cramped vehicle engine bays or underbody locations. The kit's inclusivity is a major fitment advantage; with the main wiring package, oil pump, 10-litre tank, filter, and all necessary pipes and fittings provided, installers have everything required for a full system hook-up without needing to source additional parts.
Uses and Placement

The heater's applications are clearly split between direct comfort and preventative vehicle maintenance, suitable for a wide array of mobile settings.
Event or Professional Use
For commercial operators such as lorry drivers or tradespeople in vans, the heater eliminates window frost and provides consistent cab warmth during long shifts or overnight stops, contributing to driver comfort and safety. Its ability to preheat the engine is particularly valuable for fleets operating in cold climates, as it can help reduce starting problems and extend engine life, potentially lowering maintenance costs.
Everyday Home Use
For owners of caravans, motorhomes, or boats used for leisure, the heater transforms these vehicles into four-season accommodations. It enables comfortable use during cooler months by providing on-demand heat independent of the vehicle's main engine. The engine preheat function is equally beneficial for seasonal boat owners or those storing RVs over winter, ensuring a more reliable start when the vehicle is next used.
Benefits and Buying Value

The value of this product stems from its targeted functionality, operational efficiency, and the convenience of a full kit.
Reuse and Low Maintenance
The heater is designed for ongoing use, providing warmth whenever needed. Its noted low fuel consumption makes it economical to run, while the inclusion of a replaceable air filter and the system's simple diesel-burn principle suggest straightforward upkeep. The engine preheating function directly contributes to long-term vehicle maintenance by reducing cold-start strain.
Why Choose This Product
This heater kit stands out for its clear application range and completeness. The choice between 12V and 24V systems, along with three power levels, allows for exact matching to your vehicle's electrical system and heating needs. The provision of a detailed installation guide and every conceivable part—from the main unit and fuel tank down to the cable ties and screws—significantly reduces installation complexity and the risk of missing components, offering immediate readiness and peace of mind for the installer.

