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Christ · 12-05-2009, 02:40 AM

Not likely to keep the heat in there for that long, honestly. Maybe you could get a block warmer with a battery in the car, on a timer? Charge the block warmer's battery off the house, and it's only a slight efficiency loss from the conversion of energy to the battery, then to the block warmer.

You could also consider using the second battery on a timer with a 120V inverter, as well, so you can run a slightly higher capacity block warmer. Set it on a timer to turn on about 1/2 hour before you leave school, 1 hr on colder days.

Other than that, the best you can do is insulate the hell out of the engine.

12-05-2009, 02:40 AM	#35 (permalink)
Christ Moderate your Moderation. Join Date: Nov 2008 Location: Troy, Pa. Posts: 8,919 Pasta - '96 Volkswagen Passat TDi 90 day: 45.22 mpg (US) Thanks: 1,369 Thanked 430 Times in 353 Posts	Not likely to keep the heat in there for that long, honestly. Maybe you could get a block warmer with a battery in the car, on a timer? Charge the block warmer's battery off the house, and it's only a slight efficiency loss from the conversion of energy to the battery, then to the block warmer. You could also consider using the second battery on a timer with a 120V inverter, as well, so you can run a slightly higher capacity block warmer. Set it on a timer to turn on about 1/2 hour before you leave school, 1 hr on colder days. Other than that, the best you can do is insulate the hell out of the engine. __________________ "¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"