... Top brand,Safe,Environmentally friendly,Intelligent,Economic 12v or 24v Diesel or Gosline For car truck, van,boat,caravan,etc Technical ... system uses the gas or diesel as the fuel, after heating the exchanger, the hot air is send to carriage, storage ... boat, RV,caravan, motorhome, electromobile for heating and heat preservation. Air diesel heaters heating for car truck boat RV caravan and special ...