Removable Electrical Plug End, 1-1/4" (32 mm), 400 Watts, Drive-in
The frost plug, lower radiator hose heater, or circulating tank heater are designed to keep the coolant in your engine warm
Also referred to as Freeze Plug heaters, or simply Block Heaters
The most reliable and efficient way to pre-heat your engine
Operates by being directly submerged into coolant and heating the block
A frost plug heater is an electric heater that heats the engine of a vehicle to give quicker starts and protects your engine from damage that can occur during cold weather starts
Warmed engines also deliver better fuel economy, plus improves oil flow to provide better lubrication to the engine, which reduces wear and increases engine life
The frost plug heater also cuts back on pollution as it aids in vaporization of fuel, thereby cutting back on emissions