Triggerhappy007 wrote: ↑Fri Jan 07, 2022 10:20 am
I just tested at 23F outside, Temp set to 60F, recirculate on. It lost 0.8% after 30 minutes and 1.6% after 1 hour. So the car could last 2 days if I started with 77% SoC.
Nice data point. The average car uses about 1/2 gallon per hour idling. Small cars can have 12 gallon tanks, larger cars can have up to 15 gallon tanks. Average the two and say your car happen to be full with 13 gallons of gas, that would give you about 26 hours of heat. Now.... you can ration it of course and just run for a little while, heat up, then shut down to save gas, but you could do the same thing in an EV.
So between a car with a full tank of gas and an EV at 100% charge, it would actually be better to be in the EV for survival reasons, especially if the car is getting covered in snow or ice and you don't want vehicle fumes coming back into the cabin and killing everyone.