My pictures didn’t come out, but the PVC vent pipe for the high efficiency furnace runs across garage ceiling, then a 45 pointed downhill, then straight through the wall to outside. Of course, Water is dripping from it outside onto the sidewalk.
Is a furnace vent that is PVC allowed to have a downhill slope?
Yes its suppose to have a down hill slope WV but back towards the heel of the 90 on the combustion blower. What do you suppose the hose on the heel of the 90 is for, surely not for cosmetic looks;-):p:p:p
Thanks, Mr Charley, and thanks for not mentioning the Bowl Game last nite
Yep, water running out of the hose at the 90, and also out the end of the pipe on the sidewalk, too. They put the 45 in there because the garage ceiling is higher than the soffit. They should have just ran the pipe about 10 inches lower, IMO, so it would be horizontal with slight pitch upward toward termination point.
I’ve seen them run vertical, then run with 1/4" per foot rise inside, go through the bond joist and siding, turn 90 degrees upward, go up 2’ ± , turn 90 degrees at the termination and still have icicles occasionally. Warm moist exhaust condensing.