Originally Posted by MrBottomTooth

I know a guy in the scrap business. He heats his shop by having an old car sitting outside, with the rad plumbed out of the car and into his shop. He just runs the engine off all the old gasoline he syphons out of the scrap vehicles he buys. The heat from the rad heats his entire shop. Probably the most environmentally unfriendly and ghetto setup I have seen, but it probably saves him thousands of dollars every winter.