Drivworld Liquid Parking Heater -5kw 12V/24V Diesel or Gasoline Water Parking Heater - for car,Truck, Boat,RV,Camper (5kw 12V Gasoline) Brand: Drivworld. 2.3 out of 5 stars 7 ratings | 17 answered questions . manufacturers, or customers who bought this product. Please make sure that you are posting in the form of a question.