Since we have owned this SN, the heat system in the thing has been terrible. You fry in the rear bedroom where the furnace is located in the left rear corner and the rest of the coach has this romantic polar effect, cold. Air Circulation to the BR is too much and non existent to the rest of the coach. Have only been able to check the hose from furnace under the wall closet in the BR. Cannot get to the rest without ripping up the floor most likely. Has anyone had this same problem and found a reasonable fix? I am so used to fixing Goofstream's screw ups because their back up is useless and local dealer is worse. Also one of the Domentic AC Thermostats just failed, this one does not run the furnace.