Experience comfort wherever the journey takes you with the Truma Combi 6E AU Plus Water/Air Heater (Combi Only) — a single, compact solution that delivers both climate warmth and ready hot water in one efficient package. Designed for caravans and motorhomes, it saves valuable space and reduces weight by combining space-heating and water-heating in one appliance.

Three versatile operating modes adapt to your environment and power availability. Run on LPG to stay self-sufficient when you’re off-grid, switch to electric heating at the campsite, or use a balanced mixed mode for cooler conditions. The unit includes integrated electric heating elements, giving you flexibility without carrying extra gear. FrostControl automatically protects the system by draining the water tank in freezing weather, so you’re ready to travel anytime.

What makes the Truma Combi 6E AU Plus stand out

• Two-in-one comfort — fast, even warmth for the interior and instant hot water for showers, dishes, and hands.
• Four air outlets ensure even distribution of warm air throughout the vehicle cabin.
• Multi-source operation — LPG for self-sufficiency, electricity at campsites, or a smart mixed mode for cooler days.
• Lightweight and compact design enables flexible installation in a wide range of motorhomes and caravans.
• Integrated heating elements provide reliable electrical heating when mains power is available, reducing noise and startup time.

Technical specifications at a glance

• Energy sources: LPG (gas) + electricity
• Operating pressure: 30 mbar
• Gas mode rated heat output: 2000W / 4000W / 6000W
• Electric mode rated heat output: 900W / 1800W
• Mixed mode max output: up to 6900W
• Fuel consumption: 160 – 460 g/h
• Power consumption (12V, heater + water container): up to 6.5A (short periods), average ~1.4A
• Power consumption (230V): 3.9A / 7.8A
• Water capacity: 10 litres
• Heating times: water 15°C → 60°C in approx. 23 minutes (water container); heater + water container from 15°C → 60°C in approx. 80 minutes
• Weight: approx. 15.5 kg
• Dimensions (L x W x H): 510 x 450 x 300 mm
• Note: 65 mm ducting may be required. Product Code: TR40230

Why this is the intelligent choice for RV heating

The Combi 6E AU Plus is built for real-world RV life. It combines rapid interior heating with on-demand hot water, so you only install one appliance yet enjoy dual comfort. The four-air-outlet design maximizes heat distribution, so even when you’re parked in cooler climates, you’ll feel the warmth quickly. With FrostControl and flexible energy sources, you aren’t tied to a single power source, making it ideal for long trips or full-time travel.

Ideal use scenarios

• Weekend getaways and long-distance road trips where space and weight matter.
• Remote sites with limited electrical supply but a propane/delivery gas option.
• Full-time RV living where reliable heating and hot water are essential for daily comfort.
• Periods of cool weather where a balanced mix of heat and water heating keeps the interior comfortable and ready for showers.

Installation and compatibility

Designed for versatile installation in caravans and motorhomes, the Combi 6E AU Plus is built to integrate with existing systems while remaining easy to service. Its compact footprint and lightweight form factor offer flexible mounting options, helping you preserve valuable interior space without compromising performance.

Trust in TRUMA’s engineering heritage for dependable RV climate control. The Combi 6E AU Plus is the integrated solution you need for warmth, comfort, and convenience on every adventure.