LTLFTcomposite wrote:Another use would be for heating BEVs (and their battery packs) in extreme cold conditions. IIRC Volvo was doing that in some EV they were developing.
Burning stuff isn't so bad when the goal is to produce heat, it's when you're trying to produce mechanical energy that it becomes stupid inefficient.
At COP 1.0 (efficiency only 100%) EV-s without heat pump are technically wasting a lot of energy on heat.
Therefore adding fuel heater to iMiEV is very acceptable idea. Especially on normal grid that has only 10-40% renewable energy.
At the same time using heat pump will beat liquid fuel at most occasions. I would say down to -10*C 14F.