120v to 230V question again, yawn*

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Hello fellow welding folks!OK, so suppose I don't want to wire up the stove plug.   Has anyone thought of using a transformer thats big enough to pump 120V outlets up to 230v?   Like this 5000Watt device promise to do?  Anyone has try this?http://www.instapark.com/voltage-tra...converter.html
Reply:Can't be that simple a solution right?  I must be missing something.   On the surface it seems adequate5000watt = 27amp   at 230v?
Reply:If you expect 27A at 230V you're gonna need to find a 115V circuit in your house that's 54A minimum to feed it (and actually likely more, since there will be energy lost to heat in your transformer).I've never heard of a 115V circuit going above, say, 20A in a house. That would give you 10A at 230V.Ain't no free lunches, friend.P.S. Your math is wrong. 5000W = 230V x 21.7ALast edited by Kelvin; 07-15-2011 at 09:53 AM.
Reply:And you only need to pull about 60amps from a 15-20amp outlet.
Reply:I use a transformer to go from 240 to 480 in my garage.  In my garage subpanel, I feed the transformer with a dedicated line, the it feeds inti another panel.  Out of this 480 panel, I have outlets wire for my welder, plasma, and bench grinder.  The lathe, Bridgeport and air compressor run off of a RPC powered from this 480 panel.120 to 230 via a transformer misses your point anyway.  Your stove outlet, or any other 240 outlet, is two legs of 120.  Even if you had a large enough 120 outlet, you still would need two legs of it...In short, it won't work.  Just run another line, or an entire subpanel, to your garage and be done with it.
Reply:Originally Posted by throne7Can't be that simple a solution right?  I must be missing something.   On the surface it seems adequate5000watt = 27amp   at 230v?