Re: Block Heater
Variables to include that could change the amount of time needed: Size of engine/Outside temperature/where the block heater is- internal vs external mount. Before my cars enjoyed the comfort of a slightly above freezing atmosphere, I would place them on a 15 amp circuit with a heavy duty timer with it set to start 2 to 3 hours before I planned on starting it with an internal block heater (4 cylinder) at up to -15. It was always ready to go. Most block heaters are around 1500 watts- large diesels may be higher wattage- but I think it would need a 20 amp outlet and plug if they were any larger. Maybe more comments or suggestions from other members?