How to run Hydroflame furnace in the back of motorhome

[nomad10th]

I ran the heater in my mh for the first time today. The RVP thermostat in the front of the mh (That also runs my cold A/C) got the heat blowing out of the front two floor vents (by floor vents I mean mounted low on the walls as opposed to ceiling vents) right away. However, there are several other floor vents in the rear of the mh and in the water/dump valve bay that were not blowing at all. I also have the hydroflame little thermostat in the rear (master bedroom) that I'm not sure what it does. Tried playing with it, adjusting the little volume switch at the bottom etc. nothing. The switch on top also is in a fixed "off" position that appears to be permanently set with a plastic pin/nub/thingy. That little thermostat seems to do nothing, but since I bought the mh brand new, it's gotta have a purpose.
I just want to know how to get heat to blow out of my other vents, especially the "wet" bay with winter coming. Thanks

[nomad10th]

It's a 2013 Fleetwood storm 32 bh

[redfire312]

Do you have two separate furnaces? If only one I suspect the other vents are either blocked up, become disconnected or never hooked up at the factory

[sailwing2003]

You have shown you have two controllers.

You do need to walk around out side and see that you have two furnaces, which I would guess you do. If you do, then you will have two return air grills inside as well. The little top right sticking up tab will move to the left, with enough force, to turn on the rear furnace. Understand that the fan should come on, and then the propane burner and soon heat will blow. When it shuts off via the temperature setting, the burner stops, then after a cool down time, the fan will stop.

Your dealer might be your next call, as they missed helping you understand the new coach on your walk thru inspection.

[Go Dawgs]

You probably have 2 furnaces. You will need to turn both on to get the both to work.