[busterbrown]

You might want to look at an inverter generator vs a convention generator. They price out a bit more but are much quieter and prooduce clean, pure sine wave power, much better for your electronics. Champion has a series of inverter 3100/2800 gennies that will run your 13.5k btu A/C unit off grid. I own wireless remote gas version that can power my coach with a 15k btu unit. Just have to power manage concurrent use of appliances. Champion inverter generators have a good reputation around here and won't break the bank. The red and blue models (Honda/Yamaha) are the premier brands but you'll pay for them too. Don't know too much about the Wen brand but they also have inverter style generators.