Plugging in a gasoline car (does block heater energy consumption offset fuel saved?)
I'm wondering if anyone has kept track of how much energy their block heater is using and how much gas they are saving because of it.
Could you compare a block heater on a gasoline car to a plug in hybrid? both use gasoline but both save gas by being plugged in, so I wonder how many KWH per mile you get in a gasoline car by plugging it in.
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