RV Comfort Systems has successfully engineered an electric heating option, an add-on assembly to any propane RV furnace, so today's RV'er can simply choose propane or electricity to heat the interior of the coach. Called the CheapHeat™ System, this unit is mounted directly downstream of the existing propane furnace and employs tungsten heating coils powered by 120 or 240-volts AC to provide the heat. The 12-volt DC fan motor on the furnace then pushes the heated air throughout the distribution ducting in the coach. It can be configured into three different wattage ratings, 1,800, 3,750 and 5,000 watts, depending on the shore power cord limitations.

The only connection between the CheapHeat™ and the existing propane furnace is a simple wiretap on the fan motor conductor. According to CSA America (the RV Furnace certification group) it DOES NOT effect the ANSI certification of the propane furnace.