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The Combi 4 E liquid gas heater is a warm air heater with an integrated hot water boiler. The appliance also has heating elements for electrical operation.
In heating mode, the heater can be used to heat both the vehicle and water simultaneously. Or if hot water alone is required, the hot water mode can be selected.
The water then reaches a temperature of 60 degrees in about 20 minutes.
With the Truma App, the user can switch their Combi heater on from a smartphone.
Heating Mode
In Heating Mode the appliance automatically selects the required operating level according to the temperature difference between the temperature set on the control panel and the current room temperature.
If the water container has been filled, the water is automatically heated as well. The water temperature depends on the selected operating mode and the heater output.
Gas mode: In this mode the appliance automatically selects the operating level that is required.
Electric mode: In this mode an output of 900 W (3.9 A) or 1800 W (7.8 A) can be manually preselected in accordance with the fuse protection at a campsite.
If more output is required (e.g. heating up or low outside temperatures) gas or mixed mode should be selected so that enough heating power is always available.
Mixed mode: In this setting 230V electric mode is preferred if the power requirement is only low (e.g. for maintaining the room temperature). The gas burner is not enabled until the power requirement is higher, and is the first to switch off during heat-up operations.
Hot Water Mode (with filled water container only)
Gas mode or 230V electric mode is used for hot water preparation. The water temperature can be set to 40 °C / ECO or 60 °C / HOT (ECO, HOT only with control panel Truma CP plus).
Gas mode: In this mode the water is heated at the lowest burner setting. Once the water temperature has been reached, the burner switches off.
If the 230V power supply is disconnected or fails, the heater automatically switches over to gas mode.
Energy sources: Propane, butane, electricity
Operating pressure: 30 mbar
Rated heat output in gas mode: 2000 W / 4000 W
Rated heat output in electric mode: 900 W / 1800 W
Rated heat output in mixed mode: max. 3800 W
Water capacity: 10 litres