Choosing the right motorhome heating system can make or break your camping experience, especially during British winters. Gas, diesel, and electric heating each offer distinct advantages for different travel styles and budgets. Whether planning year-round adventures or occasional summer trips with chilly evenings, understanding these systems helps you make informed decisions about comfort, running costs, and practicality. Let’s explore how each heating type works, its real-world performance trade-offs, and insurance considerations for modifications or replacements.
The Three Main Motorhome Heating Systems
Modern motorhomes use three heating types: Gas (LPG) systems running on propane or butane bottles, diesel heaters that draw from your vehicle’s tank, or electric heating that requires a mains hook-up. Some newer motorhomes feature dual-fuel systems combining gas with electric.
Each system suits different camping styles. Weekend campers using serviced pitches might prefer electric simplicity. Off-grid adventurers choose diesel for independence. Traditional tourers stick with gas for proven reliability and quiet operation.
Gas (LPG) Heating Systems
Gas heating is a popular motorhome choice in the UK. These systems run on replaceable or refillable LPG bottles stored in external lockers, providing reliable warmth without depending on hook-ups or your vehicle’s fuel tank.
How Gas Heating Works
Blown-air systems like Truma Combi dominate the market. These units heat both the living space and hot water from one appliance. Cool air passes over a gas-fired heat exchanger and is distributed through ducts and vents.
Wet systems like Alde work like home central heating. A gas boiler heats fluid (water and antifreeze) that pumps through radiators around the vehicle. These premium systems provide silent, even heat, but cost considerably more.
Gas Heating: Weighing Up Trade-offs
Gas systems operate silently; they matter for peaceful nights and considerate camping. Clean combustion produces minimal odour without a diesel smell. Modern units like Truma Combi E offer dual-fuel capability, running on gas, electricity, or both for rapid heating. Factory-fitted systems integrate seamlessly, and widespread availability makes repairs straightforward.
However, gas bottles empty at inconvenient moments. Monitoring levels prevents surprises but requires constant attention. International travel complicates matters-different countries use various connectors and exchange systems, making refills challenging abroad. Gas lockers consume storage space and add weight, with two 11kg bottles plus a locker easily totalling around 40 kg.
Diesel Heating Systems
Diesel heaters appeal to adventurous motorhomers who prioritise independence and long-distance travel. Drawing fuel directly from your tank removes the need for separate fuel supplies and storage concerns.
How Diesel Heating Works
- 12V pump draws diesel from your tank – typically 0.1-0.5 litres hourly
- Glow plug ignites fuel in the combustion chamber
- Air blows over heat exchanger into living spaces
- Popular brands include Webasto and Eberspächer
- Programmable timers and thermostats enable automated operation
Diesel Heating: Practical Realities
Fuel availability beats most. With diesel, there is no hunting for gas suppliers or wrestling with foreign connections, which is important during extended tours. Reducing bottles frees storage and payload capacity. Diesel heaters work best off-grid and safely while driving, pre-heating before arrival. Remote smartphone control is also appealing on cold mornings.
Noise remains the biggest drawback. Fuel pumps tick audibly, while fans run louder than gas equivalents, potentially disrupting sleep. Power consumption exceeds gas systems, and glow plugs, pumps, and fans drain batteries faster, crucial for off-grid camping without solar. Maintenance includes periodic high-temperature burns to clear carbon deposits, as low-setting operation causes “coking up.”
Electric Heating Systems
Electric heating offers simplicity and quiet operation but requires a 230V mains connection. This suits campsite users well, but can exclude off-grid adventurers.
How Electric Heating Works
- Integrated elements in dual-fuel systems replace gas combustion when connected
- Standalone heaters include portable fans, oil-filled radiators, or ceramics
- Underfloor heating provides luxury but requires professional installation
- All types need a reliable hook-up with sufficient amperage
- Most include a thermostatic control
Electric Heating: Benefits and Limitations
Convenience tops the appeal of electric heating- instant heat without checking fuel or lighting pilots. No combustion means no fumes or fewer ventilation requirements. Running costs are lower when campsite fees include electricity. Near-silent operation suits light sleepers.
Relying entirely on the mains hook-up means wild camping becomes impossible. Without the mains, electric heating becomes useless. Campsite supplies limit power—2kW heaters trip 6-amp supplies, especially with other appliances. Cold weather increases demand when supplies are restricted. Battery operation is unlikely, draining leisure batteries within hours.
Choosing Your Ideal Heating System
- Choose Gas for primarily campsite use with occasional off-grid capability, preference for quiet operation, and factory integration needs.
- Choose Diesel for off-grid adventures, international travel, and fuel convenience.
- Choose Electric for exclusive campsite touring, warmer-month camping, and simple operation requirements.
Consider combining systems for ultimate flexibility. Some people install diesel heaters alongside factory gas, or add electric backup for campsite convenience.
Insurance Considerations for Heating Systems
Heating modifications do affect motorhome insurance. Aftermarket diesel installations change vehicle specifications, requiring an insurer declaration. Some view diesel systems as fire risks, though correct installation negates concerns.
Motorhome insurance policies need to be updated when heating systems are changed. Professional installation certificates show safety compliance and may reduce premiums.
DIY modifications require care. Insurers prefer certified installer work, especially for gas systems with strict safety regulations. Keep all documentation that serves as proof of a compliant installation.
How Advance Insurance Protects Your Motorhome Comfort
Motorhome heating systems are significant comfort investments. Advance Insurance works with insurers who understand these modifications, letting you secure protection for factory-fit and aftermarket systems.
Our specialists understand how different heating systems affect insurance requirements. We explain modifications clearly to underwriters, securing suitable terms rather than blanket refusals or excessive premiums.
Whether upgrading basic gas to sophisticated diesel or adding electric backup, we connect you with insurers who understand motorhome improvements. Contact us today to discuss expert motorhome insurance.
