Gas Furnace Flue Pipe Leaking Water From Storm

A standard efficiency furnace extracts some heat from the combustion gases and quickly vents them out the exhaust or flue pipe.

Gas furnace flue pipe leaking water from storm.

There s a chance this has. This can cause premature flue failure. B vent leaking from seam in pipe. The water drips on a piece of wood in the attic which apparently has always dried before causing an issue.

If you have a condensation leak with a standard efficiency then its exhaust or flue pipe may be incorrectly sized. There are other reasons why your condensing gas furnace can leak water. Your humidifier should be getting annual maintenance from a professional to prevent this. Broken condensation line condensate pump.

Gas furnace flue pipe leaking water from storm where my gas furnace flue pipe type b runs through my attic i had water dripping from the connections seams in the area where it makes a 45 degree bend water was inside the pipe from blown rain. If you have a whole house humidifier connected to the furnace there may be an issue which is causing the humidifier to leak into your furnace. If this is the case it s best to call your local furnace repair team. You ll need a furnace technician to diagnose which of these is the issue and then fix it.

Much of the drain system and some of the parts are made of plastic. A number of points may fail in the flue but they are mostly easy to detect and fix. If the pan is cracked it needs to be repaired. Some causes of exhaust pipe restrictions are the flue cap is missing.

It was very windy out during the storm. Improper flue exhaust can result in your furnace leaking water. In a gas heated home a flue pipe vents the gases out through the roof. If your flue pipe is improperly sized or was installed incorrectly the gases move too slowly allowing them to cool down condense inside the flue and drip back toward the furnace.

There should be no water involved with a standard efficiency furnace. If you have a standard efficiency furnace usually 15 plus years old it should not be leaking water. This will cause your gas furnace to leak water. Exhaust pipe restrictions will cause the pressure in the flue to rise creating positive pressure and inhibiting proper exhaust.

It sounds like the flue gas is condensing before it has left the flue. If this is the case it could be an incorrectly sized flue pipe which is making water to drain back into the furnace. While this may look like water leaking from your furnace it s actually furnace gases that have turned into their liquid form. This includes the drain pan and the drain piping.

In some circumstances the plastic can be cracked.