• Fuel- Diesel
  • Power– 1kW-3kW
  • Operating Voltage- 12V
  • Fuel Consumption- 3.4-10.1 oz/h
  • Electricity Consumption– 0.8-1.8 A
  • Heat Vent– 35-56 cfm
  • Special Features- Fresh Air Vent
SKU: 30DT WALLAS Category:



Quiet diesel heat

The 3 kW diesel heater is remarkably silent running at full power: the sound level is similar to a quiet conversation.

Thanks to the laminar burn process, there is no audible noise, allowing the boat next to yours to enjoy the silence of nature.

The power consumption is very low compared to the air volume capacity. This makes the Wallas 30Dt  an excellent choice for sailing boats up to 12 meters.

Durable, brushless blower motors assure long lifetime and minimizes the sound level.

A Wallas 30 Dt can be installed into a diesel engine compartment or lazarette. With the help of two air inlets, you can get both fresh air circulation and strengthen the heating effect. By taking fresh air from outside and cabin air from inside you can blend the makeup air for an ideal mix.

Wallas Remote Control allows you to heat up your boat remotely.

Laminar Combustion

The burning process in Wallas products is based on laminar combustion. Unlike turbine heaters that emit a very loud roaring or “jet engine” sound, our laminar combustion process is virtually silent, requiring no exhaust sound attenuation.

In addition to silent operation, our combustion process is also very clean. By maintaining perfect burner balance, meaning that the mix of oxygen, fuel, and temperature is correct, the process is very clean. A Wallas product will burn clean at all power settings, not requiring high power run periods to clean itself.

The 3 essential elements of a laminar flame

  1. The first required element is fuel. Fuel is pumped with a special solenoid valve pump. The pump is highly tolerant of voltage and current fluctuations, is very quiet and integrated into each Wallas product. A metered amount of fuel is pumped into the bottom of the burner (see No 1 in the picture).
  2. The second element is temperature. In the start phase, ignition temperature will be generated by a glow plug. When the flame ignites, it starts to heat up the radiator (see No 2 in the picture), and a short time later the glow plug turns off. The radiator reflects the heat to the bottom of the burner, and the resulting heat evaporates the liquid fuel into fuel vapor.
  3. The third element is retardation. There is a retardation zone in the burner, marked with a blue arrow. Retardation is needed to split the coal hydrogen chains. Diesel has more long aromatic chains than paraffin oil (kerosene) and thus needs longer retardation and higher temperature for breaking the chains entirely to achieve clean combustion.