[The Atomic Ass]

Originally Posted by chuckm

Does a water pump count? And yes, A/C is quite necessary. I minimize how much I use it, but 100F heat with 98% humidity is quite intolerable. I've sweat through shirts, front and back trying to avoid the A/C.

A/C does not need to run nearly as fast as the engine, so it could be put on an electric motor by itself. The drag of the motor through the electrical system, assuming you keep the alternator to power it, will be substantially less than directly connected to the engine.