The problem seemed to boil down to the fact that my camper isn't that well insulated and the 6,000 BTU wasn't enough to heat it up. The camper is off the truck so floor and part of the sides aren't insulated and the S&S has those plastic windows across the front. When I put it on the truck I put a 4'X8' ft sheet of foam 2" thick so it helps quite a bit.
My big buddy heater at the medium setting kept it comfortable in there......BUT....medium is 9,000 BTU. I turned it on high (18,000 BTU) and it would drive you out of there.
I sent the Wave 6 and accessories back to Amazon. I think it is a good heater, but doesn't put out enough BTU's for my application.
Again, thanks for all the responses.