BFL13 wrote:
There is also a not- so- small "noise issue" with the "other" generator choices big enough to run an air conditioner at high altitudes.
Sadly the Champs are the quietest thing that will run a roof air at those altitudes, well short of a inverter generator so big I'd need to bring the pick up along to carry it. That's why I built the solar system to run an A/C even though we camp alone. I can't stand the sound of it or a Honda 3000is.
As an emergency back up in a noise vs cost basis, the Champ is fine. Be running it day in and out next to someone in a campground is a different story. There are many other solutions that are quieter if that is the case and I've never said the 3500/4000 was one of them.