Blown Air Heating Systems for Caravans & Motorhomes

Caravan and motorhome blown air heating systems provide permanent installed heating solutions using gas, diesel, or combination fuel sources for year-round comfort. Whale Heat Air underfloor space heaters offer 3kW, 5kW, and 6kW models designed for professional installation underneath caravans, motorhomes, and campervans to maximise interior living space. Truma VarioHeat systems deliver compact gas heating with digital control panels, featuring boost functions for rapid warm-up and night modes for efficient overnight operation. These permanently installed blown air heating systems replace portable heaters with ducted warm air distribution throughout your vehicle, providing consistent temperatures even in sub-zero conditions.

Professional installation is mandatory for all caravan heating systems due to gas safety regulations and exhaust requirements. All gas heating products require installation by engineers holding valid certificates of competence, with installations complying with manufacturer instructions and local regulationsce Heater. Truma VarioHeat systems include exhaust ducting, wall cowls, and digital control panels in complete installation kits, though additional warm air outlets and extended ducting can be specified for larger motorhomes. Whale Heat Air underfloor systems mount beneath the vehicle chassis, connecting to existing gas supplies and requiring professional flue installation for safe exhaust gas disposal.

Modern caravan heating systems offer multiple power stages and fuel options to match different vehicle sizes and usage patterns. Truma VarioHeat comfort models feature three-stage burner systems with intelligent fan control and near-silent operation, suitable for overnight heating without disturbance. Whale Heat Air systems are available in gas-only configurations or gas/electric combinations, with larger 5kW and 6kW models incorporating 230V electric elements for campsite useOne consideration is that diesel heating systems require regular maintenance to prevent carbon build-up, whilst gas systems need annual safety inspections and proper ventilation to ensure continued safe operation throughout their service life.

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Frequently Asked Questions


What is the difference between Whale Heat Air and Truma VarioHeat heating systems?
Whale Heat Air systems are underfloor-mounted blown air heaters that install beneath your caravan or motorhome, saving interior space. They're available in 3kW, 5kW, and 6kW outputs with gas-only or gas/electric options. Truma VarioHeat systems are compact interior-mounted gas heaters with digital controls, featuring boost modes and night settings for efficient operation in smaller campervans and caravans.
Do I need professional installation for caravan heating systems?
Yes, all gas heating systems must be installed by engineers holding valid gas safety certificates. Installation must comply with manufacturer instructions, local building regulations, and gas safety standards. This includes proper exhaust flue installation, gas line connections, electrical wiring, and safety testing. DIY installation voids warranties and creates serious safety hazards including carbon monoxide poisoning.
What size heating system do I need for my motorhome?
Small campervans and caravans up to 6 metres typically need 3kW systems like Truma VarioHeat Eco. Medium motorhomes 6-8 metres require 5kW systems such as Whale Heat Air 5kW models. Large motorhomes over 8 metres benefit from 6kW systems with multiple heating outlets. Consider ceiling height, insulation quality, and intended usage temperatures when selecting heating capacity.
Can I retrofit a new heating system to my existing caravan?
Yes, both Whale Heat Air and Truma VarioHeat systems can be retrofitted to existing caravans and motorhomes. Retrofitting requires professional assessment of gas supply capacity, electrical systems, and suitable mounting locations. Underfloor Whale systems may need chassis modifications, while Truma systems require interior mounting space and new ducting installation throughout the vehicle.
What maintenance do caravan heating systems require?
Gas heating systems require annual safety inspections by qualified engineers, including flue checks, gas leak testing, and combustion analysis. Regular maintenance includes cleaning air filters, checking exhaust cowls for blockages, and inspecting ducting for damage. Diesel systems need additional carbon build-up cleaning every 100-200 hours of operation to maintain efficiency and prevent component damage.
Are gas/electric combination heating systems worth the extra cost?
Gas/electric combination systems like Whale Heat Air 5kW GTE models provide flexibility to use cheaper campsite electricity when available whilst maintaining gas heating capability for off-grid camping. The 230V electric elements typically provide 2-3kW additional heating, reducing gas consumption on powered pitches. This is cost-effective for frequent campsite users but unnecessary for predominantly wild camping applications.
Can heating systems operate while driving?
Yes, Truma VarioHeat and Whale Heat Air systems can operate while driving when properly installed with appropriate exhaust cowls. The exhaust cowl must protrude at least 10cm above roof attachments and be positioned in clean airflow. UN ECE R 122 regulations require safety shut-off devices for heating while driving in motorhomes and caravans across Europe.