When I did my rebuild I took advantage of duct relocation and moved the forward duct as far as it could go since the cab does get cold at night. In addition, I moved the rear duct backwards a short distance to better cover the middle of the coach.
When we stayed in Md. the first winter we had the RV, and expecting "warmer" weather in that area over the Xmas vacation, we learned how good the heat is. It was 12 deg. for 2 nights and the furnace did a great job. Since we are not swashbucklers like Gene, we were hooked up. The only problem is the moisture build up thru the night which seems to all condense in the inside of the windshield. As for the noise at night, I happen to like to 'sleep warm' and also find the blower noise soothing. ;)
We also had the same revelation as Gene when we went to an RV show to see class B's. We went into a BT Cruiser and my DW asked: "how much is one of these?". Once we saw the price difference for more room, less money, we were hooked.
btw, can a Nebraskan actually swashbuckle? :h