I have an air conditioner that has I believe 6-15 plug. I will need to buy a recep for the plug and a box but what I want to do is use 2 different 110 circuits in my house to make the 220 for the air conditioner to plug in. How do i wire this up? It will just be a temporary setup and only used when needed. in the future I will have a dedicated put in but would like to have it running tomorrow since it will be 105 degrees here. any help will be appreciated. They do sell a corded setup like this but at $160 and shipping time I don't want to bother.