[RayChez1]

Both the heat pumps and the furnace operate off the same thermstat. If you want the furnace you go to mode and choose furnace set the temperture you want and it will work just like at home. Keeps the coach at the temperture you chose.
Now if you want the heat pumps then you select by zones. The one in the bedroom is zone 1, so you select zone 1 and then go to mode and select heat pump. You set the temperture you want and it will hold that temperture. Same goes for the other two heat pumps, you select the zone and then the mode which is heat pump. We have two heat pumps on our coach and they work great until the temperture gets down to around thirty degrees, then it will switch to furnace automaticly. Our heat pumps really put out a lot of heat. I was reading another post where he states his only knocks off the chill. That is not true. If you set it at 80 degrees, it will maintain that temperture. At night all we use is the front heat pump, set it at 75 and it keeps my 38' coach warm all night.
Hope that helps you.