DC THERMAL SA12-4000 12 VOLT 480 WATT 8016 BTU BRUSHLESS CAB HEATER 10,000 HOUR DC THERMAL RUCAR VACUUM SEALED ELEMENTS BRUSHLESS 50,000 HOUR BALL BEARING FAN RATED AT 40 AMPS CAN BE MOUNTED HORIZONTALLY OR VERTICALLY DESIGNED SPECIFICALLY FOR USE IN THE HARSHEST OUTDOOR ENVIRONMENTS