Dude: If you have a 2 pole breaker in your pannel 30,40,50,amp take the wires off of that one, unless you have a spare 2 pole in panel not being used. attach your 220 from your generator to that breaker(hot wires) and attach the ground (green or bare)to your ground bar and (white) to neutral bar and back feed the power threw the whole house.It will work fine.Don't forget to turn off the main breaker!!! and turn on the 2 pole breaker the gen is attached to.Every thing in the house should have power except the wire you took off.8-10k should do a good job of running the house maybe not electric stove.Or welder.No heavey loads,The smaller the breaker you use to attack the gen the less of a load you can have.8K is a good size. Temp set up but it will work fine.