Deleted member 14724
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- Oct 31, 2014
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GetOffYourGas said:on't notice a significant difference in energy consumption during those first 10-15 mins, so I just leave the heat on from the get-go. Preheating is critical, though. But once the heater fluids are up to temperature, it takes much less energy to keep them there. If you don't run heat for 15 minutes, they are cooling off and you have to expend energy to heat them up again. There is savings there, I'm sure, but I'm not convinced how much.
This is what I do. Last night was the coldest night in Atlanta so far (along with this morning). It was < 15F. The worst part of driving in those conditions is when the car has been left outside for a while and is very cold. The heater never seems to really get warm. The 12v blanket was my saving grace. When I preheat the car and drive, I set auto to 80F and just let it run, assuming a fairly short trip. I figure it will know what to do. I was averaging about 2.3-2.8 mi/kWh under those conditions.