There are some interesting observations in our forum area on the problem of heaters in EVs draining battery juice. Trading off cabin warmth for vehicle range might not be a fun choice if you live in a part of the world subject to occasional cold weather (and I guess the converse applies in hot/humid places where you might want the AC switched on more or less constantly).

Human ingenuity being what it is, solutions are being found that don't necessarily include long johns and woolly hats... 

Diesel powered heaters for EVs

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