The pet project of auto aficionado and British nobleman Edward Montagu, the machine was built from a mishmash of donated, salvaged and new or custom-fabricated parts that seemingly have no place working together: steam valves from a nearby power station, a fire engine's water pump, heating elements from tea kettles. The group also designed 12 suitcase-size stainless-steel micro-boilers, where a mixture of propane gas and air flows in and ignites at temperatures nearing 2,000ºF, generating a whopping three megawatts of heat. "We couldn't just pick a boiler design out of a book. It didn't exist," says lead engineer Matt Candy. "We had to create it."