Gas Furnace Vent Pipe Leaking Water

An easy way to tell if you have a high efficiency furnace is to look at.

Gas furnace vent pipe leaking water. There are two main issues that can cause your conventional furnace to drip water. Possible causes of leak again the most common reason for a leaking furnace is a condensation leak. If your conventional furnace is leaking water it s most likely because of 1 of these 3 reasons. Gas furnace leaking water from evaporator coil.

There could be a few reasons why your furnace is leaking water but let s start with the most likely one. If your furnace exhaust pipe or flue pipe is leaking it can be a sign of a much bigger problem. 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 vent flue pipe is white pvc as opposed to metal.

Poorly designed exhaust pipe. Why a conventional furnace leaks water. When the roof vent is leaking the actual cause must be identified first. An upflow gas furnace will have the evaporator coil installed on top of it.

Other causes of leaking roof vent are including broken seams on the metal base loosen nails and rusty metal collars around the vent pipe. So if it is dripping water you should have a professional inspect the unit immediately. Furnace is leaking when ac is on 1. The evaporator coil is the indoor coil for air conditioning.

You ll know if you have a high efficiency furnace if. 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. 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. Sun exposure and heat especially during the summer can cause the rubber boot to crack creating the space for water to leak in.

Here s what to look for. The yellow energy guide tag says your furnace s efficiency is 90 or higher afue. Improperly designed vent pipe. This is typically flown out of a pvc pipe that comes from the furnace and drains into the floor drain in your furnace room.

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.