I live in a place where I have power but all of it is 110v and I can't install a 220v outlet (I don't own the place). My stove is gas run, and dryer is one of those 110v high efficiency models. But I think I can steal opposite phases from some of my outlets to "make" a 220v outlet. I need advice as to what CAN be done and what is too unsafe or impossible. Note this product: http://www.quick220.com/220_catalog.htm which basically takes two 110v lines and compares them to see if they are out of phase, and if so, engages relays to send power from the opposite hot leads of the two incoming outlets to the outlets on the front of the device. This thing only handles 4400 watts (mostly because of wire and relays rated at 20A), but I know how to build it to handle more (not that outlets go any higher). Would it be safe to run a welder off one of these for 150-200 amp tig welding?

Suppose I didn't go the 220-double-hot route. If I hooked plugs from in-phase 110v outlets together for more current, would I be up to my knees in danger? I know that outlets from different parts of a house can have different wire resistances and different voltages, but supposing I found in-phase outlets that were near each other, would this work? I have a multimeter.

How much amperage can a maxstar 150 or 200 draw at maximum power settings with 110v? Don't show me the datasheet, I want advice about this last question from a moderator.