Uh first off, I’m not stupid, secondly it never hurts to look into how things work and get info. And I wouldn’t be paying someone to build them, I’d do it myself. I’m looking at all my options for being as independent as possible. Someone who is stupid wouldn’t do that. They’d just sit on their butts and criticizes those that do.
http://www.thelibertyman.com/steam_generator.php
Little pricey but you could build one yourself for much cheaper.