I loved his rant about space heaters. He showed a bunch of different products, all the same kind of heater, down to having identical 1500W output - but they wer

I loved his rant about space heaters. He showed a bunch of different products, all the same kind of heater, down to having identical 1500W output - but they were rated for small, medium, and large rooms, with proportional pricing. He went on to explain some basic thermodynamics (as opposed to marketing)...