> which they will have in abundance as long as the engine is running Right, as long as the engine is running (and warm). It's still inefficient, however, as a

> which they will have in abundance as long as the engine is running Right, as long as the engine is running (and warm). It's still inefficient, however, as a significant portion of the heat still leaves with the exhaust. An EV can add a resistor inside the cabin for 100% conversion efficiency, and can power it for longer than a tank of gas will allow an ICE to idle. Both systems have advantages and disadvantages. "Strong, reliable heat" is not a clear differentiator.