The exhaust pipe on the other hand is metal aluminum and travels on a slightly upward angle into a nearby chimney to vent.
Furnace vent pipe in attic leacking water.
Now that you have safely sealed the air leaks around the furnace exhaust you can work on insulating your attic space.
Issue with the furnace humidifier.
Furnace is leaking when ac is on 1.
These boots vary in quality flexibility and longevity.
Roof vent leaking is always a problem.
Possible causes of leak.
But that s not always the case especially in older models.
Vent pipe leaks during heavy rain can occur if you have cracks in your vent pipe boot or flashing.
Taking a look at the vent or exhaust pipe is a pretty foolproof technique so don t worry if you don t know your furnace s afue rating.
When these pipes either get clogged or break you ll get leaking condensation around the base of the furnace.
Another reason for your furnace leaking water is a break or clog in the humidifier.
If your vent pipe is single walled you must create a 6 inch gap instead.
A roof that leaks around a vent pipe is a common cause of small water stains on a ceiling or water leaking into a home.
What this means is humidity requires water and so does the humidifier in your home.
If your conventional furnace is leaking water it s most likely because of 1 of these 3 reasons.
My problem is that i have water leaking from the wall only where the chimney and wall meet nowhere else in the attic.
The leaking may first be seen in the attic but if you don t catch it right away you may see water coming into the house dripping on the floor.
Improperly designed vent pipe.
Again the most common reason for a leaking furnace is a condensation leak.
The heating system works fine and has done so for years.
Once the water starts to collect and pool up there s a potential for water damage.
Leaky humidifier if your furnace has a built in humidifier and the humidifier is clogged or has a leak somewhere in it then that could explain the water pooled.
When your roof was installed each vent pipe received a flexible boot to seal water around the round surface of the vent pipe.
If your home has a humidifier you can potentially be seeing water.
Roof leaks around vent pipes is relatively common.
Insulating around a furnace exhaust pipe.