CampinEarls wrote:
The duct that goes to my rear bunk area vent was disconnected at the furnace, figured it out while camping one night, wondered why it wasn't getting as warm in the back. I could see it through the louvers under the oven? Or fridge? Can't remember which one it is under. I had to go get a set of the square bits for those screws to take the panel off to fix it.
May want to check that out to make sure your ducts are all attached good.
Thanks for the tip. I removed the panel under the fridge and had a look and I think everything is connected OK.

garysol, I'm not sure how effective partially blocking the vents to try to redirect the heat would be. In our Tango, I stretched a piece of pantyhose over each vent to prevent dirt from falling in, and the service guys didn't really think it was a good idea to block the vents in any way.
I bought a couple of insulating vent cushions on Saturday and that seemed to help. I definitely noticed that the furnace was running less often last night. Also, what I do is leave the curtains open a little bit in the back so that the temperature is more balanced with the center section.