Fuel heater for use in Fleece Performance heated fuel filter kits. Fuel heater specifications Temperature switching points ON 28.4F 5.4F, OFF 48.2F 5.4F At typical fuel flow rates a temperature increase of between 4 8F will occur across the heating element Works with the following kits that have a heater provision FPE CUMM HFFBA 0318 FPE DMAX HFFBA 1116 FPE CUMM HFFBA UPGRADE FPE 34783 FPE 34780 FPE 34754 FPE 34755