1. What is a diesel heater, and how does it work in a camper van?

A diesel heater is a heating system that uses fuel from your main tank or an auxiliary tank to produce warm air. It operates by drawing cold air from your living space, passing it through a heat exchanger where it's warmed and then circulated back into the living space, keeping you warm and comfortable.

2. What are the benefits of using a diesel heater?

They are efficient, cost-effective, and can provide consistent heat even in very cold conditions. They are also known for their reliability, and they don't rely on the vehicle's engine for operation, meaning you can use them while parked or driving. The fuel consumption is approximately 0.25 Litres per hour when running at maximum output. (The peak fuel consumption varies between the 2kW & 5kW units)

3. Is it safe to install and use in a camper van?

Yes, if installed correctly and maintained properly, they are safe to use in most applications. However, it's crucial to follow the manufacturer's installation guidelines and to install smoke & CO alarms as a precaution.

4. What size and type of heater should I choose?

The size and type you need are dependent on the size of your living space and your heating requirements. You will need to consider factors like insulation, floor area and the climate in which it will be used. Heaters are available in 2kW, 5kW and 8kW outputs. The smaller 2kW unit is suitable for most applications if in a mild climate, however, the 5kW unit may be required if you plan to travel to colder climates

5. How do I install a diesel heater in my camper van, and can I do it myself?

Units can be installed inside or mounted externally. You'll need to choose a suitable mounting location, connect to the main fuel supply and a power source. While some DIYers can manage the installation, it's advisable to seek professional help to ensure the heater operates safely.

6. What are the essential components needed for an installation?

Kits with all the required components are the best choice. It is recommended that you buy a vehicle-specific adaptor to connect to the fuel tank, some vehicles have auxiliary fuel feeds available making the connection simple.

7. How much does it cost to fit?

The cost varies based on the brand, size, and user requirements. Depending on the brand, heaters range from £120 - £1200. The installation is approximately £250 depending on the vehicle and location of the installation.

8. Are there any maintenance requirements?

The maintenance recommendations vary between manufacturers however, the units are very simple and require minimal attention if installed correctly. (For more information check out our article)

Autoterm advises if you use their heater regularly, such as turning it on every two weeks at max power for 30 minutes and cleaning it from dust a few times a year, you may not require service or inspection.

Eberspacher suggests an annual service for their heaters after 2000 hours of use or servicing every two years for occasional users.

Webasto recommends that all their heaters are serviced annually to maintain optimum efficiency and that they are serviced in the autumn to avoid any discomfort during the colder months.

9. Can a diesel heater also be used for heating water while travelling?

Heaters can be integrated with water heating systems. These systems use the same heat source for the living space as well as the water heating.

10. Are they noisy?

The noise level can vary depending on several factors, including the make and model of the heater, its age, and how well it's maintained. In general, they are known for being relatively noisy compared to some other heating methods, like propane or electric heaters.

Keep in mind that the perception of noise can vary from person to person. If you're particularly sensitive to noise, you can install additional sound-deadening materials or choose a location for the heater that minimises sound transmission.

Always refer to the manufacturer's specifications for details on fitting, maintenance and the exact noise level of the specific unit you plan to install.

Top 10 Questions About Diesel Heaters