Originally Posted by overlander63
A furnace was standard equipment in 1984, and a catalytic heater was not. I think the cat heater was possibly a dealer installed option, or was installed to replace a furnace that was removed. The furnace should have been a Suburban, and the usual mounting position was inside the cabinet that now has the cat heater, on the floor.
At the obvious risk of showing my total ignorance, I got the manual,read thru the entire thing and found one (1) mention of a furnace. It was on the 12 volt
interior circuit page. And it showed it exactly where you said it would be Overlander63. Then I lifted the cabinet door and eureka. A suburban furnace. Vent ducts need some patching and I have propane disconnected as we do other work, so I have no idea if it will fire. But that just made so many things click. Like why is there a thermostat over the bed? What are the exhaust holes right beside the door for? How dumb can I be? Nobody answer that, it was rhetorical!!
(Insert very heavy sigh here_____) So now that I know this, I still like the thread concepts of having a heat pump and a furnace.