Gosh, guys, I am sorry, I apologize, I did not make myself clear.
I am not touting the wisdom of connecting the phases together, not at all.
I did mention that I have done this several times, and it works quite well, but, that is not the point of my original post.
I thank each of you who have responded so far, and I know each of you are right and correct in everything said so far.
But, you are all missing my point.
My point is, I want to get away from backfeeding like this, and want to connect my 120 volt generator to the house with a transfer switch in such a way that I can feed the entire house.
I am just stating that I have effectively done this many times by the method I described, so I know my 2800 watt generator can power up everything I need in an emergency power out situation.
I just want to do it legally and properly with a transfer switch and not switch individual circuits.
That is my only point and several electricians say it cannot be done, that they want no part of connecting a 120 volt generator to house wiring.
That's my only point. I was just soliciting comments on using a single transfer switch with a 120 volt generator.
They would not install one to even power up one side.
So, am I to assume that a guy with a 120 volt generator is limited to transfer switches for individual circuits or using extension cords?