I checked the Onan web site. they said it will run one 1350a/c with power to spareor two 1100 btu's a/c's. I sent an e-mail to the factory to confirm. if this is the case. I inquired as to a 6.5 LP up grade. the 7000 say's gas only.
we have been putting 5.5 onans in rigs with 2 airs ( 13.5 and 15ks combined ) for years and run both airs as well as the fridge and waterheater with no troubles. it should be fine in the Redwood you might have to shut down a air conditoner if you want to run the microwave but you would have to do that with a 6.5 as well so why spend the extra money for the 6.5.
I also need a new generator but I am not sure which one I should choose. I decided to try different models and then decide which one is the best for me. I will try generator rentals in order to find out which one is the best for me. So hopefully I will soon find the best model for my requirements.
I didnt order factory genset, use a Yamaha inverter generator mounted in genbox in bed of truck. Do you find much noise and vibration when running factory Onan genset? I really like my Yamaha inverter generator, very quiet too.