[99LeCouch]

Mine gets started about 6-7 hours before needing the car. Then the big iron lump of a FSP engine gets up to 85-90*F at 15*F outside temperature. And it stays there or higher during my short-tripping mornings for work since the 150 or so lbs of iron making up my engine is thoroughly heat-soaked.

I'll likely use it year-round with reduced times in the summer for better fuel economy year-round.