Quote:
Originally Posted by MetroMPG
If cabin comfort is your goal, the block heater isn't going to change that very much. But an electric cabin heater will. Yes, the cabin starts to cool once you unplug and drive away (no idling), but the coolant is warming quickly as the cabin is cooling and they meet in the middle before it ever becomes uncomfortable.
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I want to have my cake and eat it too, so block heater is ~800 W and cabin heater around 300-400 W. Coolant is mostly 80-100 F right from the start.