Gas Furnace Vent Pipe Leaking Rain Water

No water was coming from the flashing or above the first flue seam inside the attic i e.

Gas furnace vent pipe leaking rain water. An upflow gas furnace will have the evaporator coil installed on top of it. I have a storm collar and a high wind storm cap. Why a conventional furnace leaks water. Every system will have certain wet time when the flue is cold er and will produce condensate until the flue warms up.

Dura vent makes a cap called the brider cap that works very well and is not as open as your current cap. When your roof was installed each vent pipe received a flexible boot to seal water around the round surface of the vent pipe. The vent flue pipe is white pvc as opposed to metal. Also raise and re goop the storm collar.

Why a high efficiency furnace creates condensation how in the heck does a high efficiency furnace create condensation water anyway. If water does enter the combustion air pipe there should be a tee installed at distinct locations to prevent water from entering and leaking from the furnace. Other causes of leaking roof vent are including broken seams on the metal base loosen nails and rusty metal collars around the vent pipe. If your furnace exhaust pipe or flue pipe is leaking it can be a sign of a much bigger problem.

This is typically flown out of a pvc pipe that comes from the furnace and drains into the floor drain in your furnace room. Here s what to look for. So if it is dripping water you should have a professional inspect the unit immediately. Poorly designed exhaust pipe.

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. Vent pipe leaks during heavy rain can occur if you have cracks in your vent pipe boot or flashing. Gas furnace leaking water from evaporator coil. An easy way to tell if you have a high efficiency furnace is to look at.

And over time many vent pipe boots get hard and brittle as. However if this tube becomes clogged or if the drain on your floor becomes it can cause water to backup and leak out of the furnace. These boots vary in quality flexibility and longevity. First off conventional furnaces were not designed to produce water of any kind.

High efficiency furnaces those with an annual fuel utilization efficiency afue rating of 90 percent or higher have cool exhaust and as a result they produce condensation. The evaporator coil is the indoor coil for air conditioning. The yellow energy guide tag says your furnace s efficiency is 90 or higher afue. When the roof vent is leaking the actual cause must be identified first.

There are two main issues that can cause your conventional furnace to drip water. The flashing and vent pipe entry was sealed right. You ll know if you have a high efficiency furnace if.