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Ryan Stouffer
10-20-2009, 03:17 PM
Close up pictures
Rob Omstead
10-20-2009, 03:33 PM
looks like the poss. of improper exhausting. Based on the staining on the fan duct, I would say that the exhaust temp. is dropping to condensation point before exiting the pipe. How long is the exhaust pipe? B- vent or C-vent?
John Arnold
10-20-2009, 03:48 PM
looks like the poss. of improper exhausting. Based on the staining on the fan duct, I would say that the exhaust temp. is dropping to condensation point before exiting the pipe. How long is the exhaust pipe? B- vent or C-vent?

I think he has two threads going on the same subject. The other thread shows PVC exhaust.
Ryan Stouffer
10-20-2009, 04:33 PM
John ,you are correct. I just put those two up for someone else to look at. But my main question is are furnaces allowed to be exposed in garages like this?
Brandon Whitmore
10-20-2009, 11:36 PM
But my main question is are furnaces allowed to be exposed in garages like this?

As long as any source of ignition is elevated, duct material is rigid, there are no air leaks, there is protection from vehicles, etc---- yes.