This compact heater combines forced-air heating and an integrated 10-litre water heater in a single unit. The system is designed for RVs and runs on diesel while also offering 230 V electric operation. The water can be heated independently of the furnace, providing hot water even when cabin heating is not required.

In Diesel Mode, the heater automatically adjusts its output according to the required temperature. In Electric Mode, either 900 W or 1800 W can be selected according to the available shore power capacity. In Hybrid Mode, electric heating is prioritised when the heating demand is low, while the diesel burner automatically activates when more heating power is required. This allows fuel consumption to be reduced when the vehicle is connected to 230 V shore power.

The system features a 10-litre stainless steel water tank and allows hot water temperatures of 40-60 °C. The water pump has a maximum pressure of 2.8 bar, while the system pressure is rated up to 4.5 bar. With a maximum warm air flow rate of 287 m³/h, the system provides effective heating for the motorhome interior.

The system is RV-C Ready and suitable for use at altitudes of up to 5,000 metres. The construction is designed as a direct replacement for the Truma Combi D4E, with corresponding main dimensions, mounting points, water connections and ventilation connections.

It is not, however, a direct replacement for Alde systems. Alde uses a hydronic, glycol-based heating system, whereas this solution uses forced air heating with an integrated water heater.

Advantages

Combined forced-air heater and 10-litre water heater
Runs on diesel and 230 V electricity
Diesel, electric and hybrid modes
Electric heating at 900 W or 1800 W
Helps reduce diesel consumption when connected to 230 V shore power
Water can be heated independently of the furnace
Hot water temperature settings from 40-60 °C
10-litre stainless steel water tank
RV-C Ready
Suitable for altitudes up to 5,000 metres
Direct replacement for Truma Combi D4E
Not a direct replacement for Alde systems

Technical data
Fuel: Diesel
Power supply: 12 V DC / 230 V AC
Diesel heat output: 2000 / 4000 W
Electric heat output: 900 / 1800 W
Efficiency: 91 %
Fuel consumption: 0.28-0.65 l/h
Current draw 12 V: 1.8-4.0 A
Current draw 230 V: 3.9-7.8 A
Water tank: 10 l, stainless steel
Maximum warm air flow: 287 m³/h
Maximum water pump pressure: 2.8 bar
Maximum system pressure: 4.5 bar
Hot water temperature: 40-60 °C
Maximum operating altitude: 5,000 m
Dimensions (L x W x H): 510 x 450 x 300 mm
Weight: 15.6 kg
Protection rating: IP21
Operating environment: -25 °C to +80 °C

Product sheet »