Is it allowed to install a gas furnace in a closet such that there is no return installed? The door is louvered, so the furnace sucks the air from inside the closet that comes through the vents in the door.
I ask because a joint in the PVC exhaust (it's the warmer of the two PVC tubes (3"? in diameter)) has no glue, is leaking water, and easily pulls apart.
Strangely, I turned on the heat for a short period with my CO detector there and pulled the tube apart and it didn't go off...does that mean the detector is bad? The exhaust does have CO in it, doesn't it?
No return would mean the exhaust gets distributed throughout the apartment...
tia, Rick