... Environmentally friendly,Intelligent,Economic 12v or 24v Diesel or Gosline For car,truck,van,boat,RV,caravan,etc. Technical SpecificationsThermal Power ( ... after heating the exchanger, the hot air is send to carriage, storage equipment by air blower in order to heats and frost ... E) All kinds of ship, yacht. 24V Diesel air heaters similar with webasto heating for car truck van boat RV caravan motorhome