Slides out when stored...big debatable issue. I prefer "in" as they give a better seal against blowing rain, dust and critters. If you have toppers, that cuts a little of that problem out. Also, If I have to jump and run, they are in the road-ready position. As far as heater ducting...and anything else. My advice to anyone is take a day or so and go through every single thing/connector in your RV once you get it home. You'll find lots of things that need small adjustments or termination. It's the nature of any RV and Thor doesn't have any more issues than any other brand out here. The general labor pool that feeds this product production process isn't from the same garden that feeds GM or any other established, production line type products. Often, these loose screws go unnoticed for many,many months as the coaches sit in inventory on dealer lots. I think a lot of the big issues are a result of little issues that have gone unattended for too long. I think there's an opportunity for a start-up business of a professional walk-thorough service for new buyers of higher end RV's. You can be the bad guy with the dealer, make sure everything in perfect and whistle for the new owners like a well trained dog when everything is ready. If the dealers knew "you" were coming, they would do a better job before you get there.
2018 THOR Chateau 35SF
Two Labs, Bugsie & Blondie