So I’m installing a furnace in my pup and I have several questions. I got the furnace out of a pup that was being gutted, it looks like it was never used. I have already installed the furnace which was fairly simple because my pup was equipped for this model to be included from the factory so most of my questions are about connecting the lp and a thermostat. First question is I plan to use the propane line coming in for the stove which i don’t plan to use ever. On my pup the regulator is up by the tank and that connects to a copper tube that splits under the pup one goes to the indoor stove and the other to the outdoor stove hookup. Do I need to put a shut off valve in front of the furnace or does the furnace have one built in? The other question is about a thermostat. The pup I removed it from didn’t have one anywhere outside of the furnace but I couldn’t find anywhere in the manual that this model has a built in thermostat, does anyone know? Last question is my pup has wires in the bottom of the cabinet with a factory label on them that says furnace. There is a black, white, and orange wire. I’m guessing the black and white are for the dc fan, what’s the orange for? Oh and I plan to add a carbon monoxide detector for the safety of my family. Any suggestions on a good battery operated one? Thanks guys!