Bill I'm not trying to be a smartass but those welders as well as most small one's on the market are real fickle about their voltage supply (wire size) 12/2 don't get it and the farther away you are from a breaker box the larger you need. Heat sinks help but you'll have all kinds of problems if it's screamin for more power! It's like putting tennis balls over top your secondaries or a big rubberband around your Johnson!
