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Truma Combi D6 Liquid Gas Heater

The Truma Combi D6 gas and electric heater has a 4000 W rated thermal output. The Truma Combi D6 water heater is the most lightweight and compact caravan, campervan, motorhome combination heater available. It has unrivalled low power consumption and comes with Frost Control, the current-free safety/drain valve featuring frost monitoring, as standard.
Optimum distribution of warm air through four warm air outlets. The truma Combi D6 boasts short water heating times, but no need to cut your shower short. It has a durable stainless steel water tank.

Truma Combi D 6 Diesel caravan water heater
Truma Combi D 6 Diesel caravan water heater
Truma Combi D 6 Diesel caravan water heater diagram


Truma Combi D6 caravan & motorhome heater


Additional benefits of the Combi D6

  • Four warm air connections ensure optimum air distribution via a quiet yet powerful fan
  • The temperature can be infinitely adjusted on the ergonomic control panel
  • During winter operation, the vehicle is heated and the water is warmed up at the same time; during summer
  • operation, only the water is warmed up
  • The asymmetrical shape of the 10-litre stainless steel boiler enables the water to be mixed more efficiently - so it
  • warms up more evenly and rapidly - which means you can enjoy longer showers without the need to readjust any
  • settings
  • The heater can be operated even if the boiler hasn't been filled
  • The compact design enables a high degree of flexibility when selecting the installation area
  • Water, gas and warm air duct connections at the side make servicing easier
  • The innovative microprocessor control system ensures even more safety


Information on Frost Control (safety/drain valve)

  • The current-free safety/drain valve empties the boiler automatically via a drainage socket if there is a risk of frost (i.e. at around 3°C)
  • The drain valve also opens in the event of excess pressure
  • Drainage takes place intermittently, meaning the drainage equipment cannot freeze up
  • If necessary, the drain valve can also be opened manually
  • Only once the temperature of the Frost Control has risen to a level where frost is no longer a risk (i.e. at approx. 7°C) will the drain valve close again
  • Current-free operation discharges the on-board battery

Combi D6
Energy Source
Diesel in acc. with EN 590
Operating Pressure
Water Capacity
10 litres
Water Pressure
Max. 2.8 bar
Heating time (from 15°C to 60°C): Boiler/Heater and boiler
Approx. 20 min./Approx. 80 min.
Rated Thermal Output
2000/4000/6000 W
Fuel Consumption
220-630 l/h during normal operation with average heat output (1000 W): 110 ml/h
Air Flow Rate
Max. 287 m3/h
Power consumption (at 12 V): Heating and boiler operation
1.8 A up to temporary max. of 7 A, during normal operation with heat output of less than 2000 W: less than 1.8 A
Power consumption (at 12 V): Heating up boiler
Max. 1,8 A
Rest Current
Approx. 0.001 A
Weight (without water)
15,8 kg
Dimensions (L x W x H)
525 x 450 x 300 mm
Part no.