Fuel & Fluid Warming - Phillips & Temro Industries Arctic Fox offers a complete line of fuel and fluid heaters that deliver the perfect solutions to cold weather operation for dependable engine starts. Arctic Fox is one of the top leaders in Fuel and Fluid Warming Products, keeping Heavy Duty trucks and Off-Highway equipment running in cold weather. keeping Heavy Duty trucks and Off-Highway DAVCO Cold Weather Solutions Install a 120VAC plug-in pre-heater for overnight cold weather elimination of fuel wax. The 120VAC Watt pre-heater warms fuel when your truck is sitting and freezing on those cold winter nights. Warm fuel won’t ‘wax’ and plug filters. DAVCO 120VAC pre-heater plugs into the same power outlet you use for engine block heaters.