... friendly,Intelligent,Economic 12v or 24v Diesel or Gosline For car,truck,van,boat,RV,caravan,etc. Technical SpecificationsThermal Power ... Heater, safe, environmentally friendly, Intelligent, economic.1. Advantages A) Mute sounds make driveing comfortable. B) Excellent independent stepless ... in order to heats and frost removing3. Applicable scope A) Truck, engineering truck, electric vehicle. B) Medium bus ...