SIGN MAN - We all myself included sort of got off the question abit describing what the companion model was designed for.
Just keep in mind the companion model has a 30AMP 120VAC socket installed on it but will still need to have an adapter to mate with the RV30AMP plug.
The companion model generator however by itself will only produce 120VAC @ 13.3AC AMPs when run by itself. Hopefully the 13.3AMP will run your 11000BTU roof mounted air conditioner. In my case my 2KW Honda Generator that was producing 120VAC @ 13.3AC AMPS would start up my 13,500BTU roof mounted air conditioner if I turned off everything else in the trailer but the next time the air conditioner would cycle it would trip my generator breaker.
The only thing you are going to gain with the companion model by itself is a 120VAC 30AMP receptacle mounted on the front panel and only one 120VAC 20AMP receptacle. You will not get 26.6AMPS from this 30AMP Socket by itself - only when you sync the Companion model Generator with another 2KW Honda Generator. This 30AMP socket will only produce 120VAC @ 13.3AMPS when used by itself. Of course the Companion model will probably be $100 more in cost. You will still have to purchase a RV30A adapter to go from the 30A twist lock receptacle to the RV30A standard socket to fit you RV30 AMP Shore Power connector.
Also I am assuming you will get 120VAC @ 13.3A on the twist lock 30AMP socket. IT may not produce any output unless synced to a second 2KW Generator - I have never played with the Companion Model. Others on here should be able o answer this question. The question is will the 30AMP Twist Lock connector on the companion front panel be "HOT" if used by itself.
Just passing along how all of this is going to help you if you just purchase ONE EACH Companion Model 2KW Generator...
Be sure to post how the 11000BTU works with one 2KW Generator. I for one would like to have that info.
I have run a standard 8000 BTU House window air conditioner unit with my 2KW Honda Generator and it worked just fine...
Roy Ken