MIKEMCD77
New Member
I have a 6" diameter roof vent for my gas furnace. I want to replace the vent. Is it OK to replace it with a 4" diameter vent? Here is the info on my furnace:
XE-90 gas furnace; Trane (American Standard) “high efficiency.”
Mine is a Downflow and “NON-direct vent”; 74,000 BTUH capacity output; ICS (AFUE) 91.0
Furnace model # TDC080C942B4
XE-90 gas furnace; Trane (American Standard) “high efficiency.”
Mine is a Downflow and “NON-direct vent”; 74,000 BTUH capacity output; ICS (AFUE) 91.0
Furnace model # TDC080C942B4