Originally Posted by dznf0g
Steve, not sure which "cheater" you are talking to. I agree with you relative to the OP's product question.....if you refer to my "poor man's" cheater....the 2 circuits are completely separated and do not commingle in any way. (That's a technical term....for high voltage dummies, like me)
Rich, I am referring to the OP's link to the cheater available at
Yes, your "system" will work without fail, but you are not tying the additional 20 amp circuit into your trailer's power system where you do not know what all is tied to that "leg".
I have a friend who has retro-fitted an additional A/C unit to his trailer, and he powers it by the exact same method that you use.