COMBI STOVE 4E 4000W - 12V Gas with iNET-X control and 220 V electric heating element (2 x 900 W) - 33714-20

How the TRUMA COMBI works:

1 Control unit

2 Gas Connection

3 Solenoid valve

4 Combined flue gas/combustion air exhaust stack

5 Combustion Air Fan

6 Gas Burner

7 Glow Plugs

8 Burner chamber

9 Firebox tube with sheet metal deflector

10 Recirculation Fan

11 Heat Exchanger

12 Electric heating elements

13 Four Hot Air Outlets

14 10L Stainless Steel Water Tank

15 Hot Water Connection Hose

16 Cold Water Connection Hose

17 Room Temperature Sensor

18 HDF Thermal Jacket

The LCD control unit of the Truma Combi (1) starts the heating system and sets the desired temperature for heating and hot water.

The heater is connected to the vehicle's gas supply via the gas connection (2).

The gas supply to the heating system is regulated by the solenoid valve (3).

The required combustion air enters the appliance via the outer pipe of the flue gas/combined flue gas chimney (4) and is supplied to the gas burner (6) via the combustion air fan (5).

The gas burner, which is equipped with two glow plugs (7) and a glow plug, ignites the gas and air mixture in the burner chamber (8).

The hot flue gas is diverted onto the sheet metal baffle of the firebox tube (9) at the end of the burner chamber and flows back between the burner firebox tube and the inner wall of the heat exchanger.

The fumes are then discharged into the open through the chimney (4).

The recirculation fan (10) transports the air to be heated inside the appliance, which flows along the ribs of the heat exchanger (11), whose large transmission surface ensures optimum heat transfer.

The heat exchanger also contains additional heating elements (12) with 1800 watts, which can be used to heat water and/or air as an alternative to gas or in mixed operation.

Finally, the hot air is diffused into the vehicle by four special outlets (13).

The fresh water is stored in the 10-litre stainless steel water tank (14) and is heated by the heat given off by the heat exchanger (11).

The eccentric shape of the water tank gives rise to a "water cylinder" that ensures optimal mixing of the water and better temperature stratification.

The hot water connection hose (15) connects the Truma Combi to the hot water pipes in the bathroom and kitchen.

Cold water is pumped from the fresh water tank through the cold water connection pipe (16).

The room temperature sensor (17) in the vehicle measures the air temperature in the vehicle.

The water temperature is also measured by an internal temperature sensor.

Before reaching the desired heating and water temperature, the appliance already reduces the heating capacity.

When the set temperature is reached, the burner switches off.

If the water and heating temperature falls below the set values, the Truma Combi switches on automatically again to heat the air and water (winter operation).

In summer operation, the water can be heated independently of the heating.

The HDF thermal membrane (18) ensures good insulation of the Truma Combi heating.

Maintaining the water tank:

The water tank should be sterilized and descaled regularly.

All cleaning products commercially available in specialist camping shops are suitable for cleaning, sterilisation and care.

To descale the water tank, you can use commercially available descaling products, vinegar essence or citric acid.

Pour descaling or cleaning products in the recommended mixing ratio into the water tank through the water outlet and allow them to take effect.

Plug in the water tank and rinse thoroughly with clean water.