Comment by joshuahaglund

I think most of the US has 240 to the home. Look at your power feed, if there are two insulated conductors on an uninsulated line, those are two 120V lines of opposite phase/polarity. I have a friend who temporarily ran a 240 volt welder by plugging into a custom outlet box, wired with two plugs that went to two outlets on different legs of the breaker box. Electric ovens, ACs, hot tubs, dryers, etc. are all commonly 240 and work with the right house breaker and wiring setup.