Early this spring during a torrential downpour and after a particularly hard winter we heard water dripping in our attic. About a quart of water collects over the course of 12 hours.
Why Is My Furnace Leaking Water A Phoenix Tech Explains George Brazil
These cracks allow water to drip back into the furnace.
Water dripping down furnace flue vent. Had routine furnace serviceinspection and technician said the dripping is normal. When it finishes raining and the roof is dry you should get onto the roof if your house and health permit You will see a pipe sticking up from the roof. When the furnace is on the vent drips every few seconds creating a puddle in the dirt next to the house.
Badclogged condensate pump. The solution was to install a flue vent cap and caulk around the vent on the roof. Once it cools down the water condenses.
Often there is an oily substance that comes down the pipe. It looked exactly like 3-in-1 oil. Another frequent cause of water leakage in a condensing furnace is the presence of cracks within the heat exchangers especially the second heat exchanger.
Finally just like in conventional furnaces water leakage in a condensing furnace may be attributed to a faulty AC unit. Occasionally when it rains Ill get some water dripping down through my furnaces flue. During the first few minutes of operation the flue pipe is cold which causes the water vapor to condense on the inside of the flue and flow down until it drips onto the furnace.
And that water can then travel to the ducts or vents. Corrosion of the water heater jacket just below the draft hood flared bottom of flue above it. At one time I thought the customer stored a can of motor oil on the furnace and the can leaked.
The water drops would stop on the edge and drip below about one every few seconds. If you have a condensing furnace its likely leaking due to any of the following issues. Failure to Ignite Caused by a Faulty Pressure Switch.
The gas flue looks to be venting the hot water heater. The solution was to install a flue vent cap. I just end up putting some towels at.
Old equipment lost a lot of heat through the flue which allowed for the use of larger flues when replacing with more efficient units the draw up the flue may not be enough to pull all the combustion gases out causing them to remain in the flue. If the drip tray is leaking or the condensate drain is clogged with algae dirt or minerals water. A clog or issue in the condensate system.
Neither of these substances pose any serious threat to human health. When we look into the attic during the day we can see a small crack of light coming in around the flue pipe. Newly purchased home December northeast US has a high-efficiency furnace that vents to exterior of the house.
Im informed that the drip was there before they started. Long-term exposure to water vapor can cause corrosion in your furnace exhaust pipe so its important to fix any leaks ASAP. Why is My Furnace Exhaust Pipe Leaking Gas.
There was moisture around the top edge where the two cylinders meet. This exhaust from the furnace contains dangerous carbon monoxide. A poorly sized flue pipe.
It seems like this only happens when it rains hard for several hours or more. Rust and corrosion create leaks that allow the vapor to make its way into your home. Combustion exhaust in a furnace consists primarily of carbon dioxide and water vapor.
Although water dripping down the flue can be caused by a missing or damaged rain cap at the roof it is more likely that the wetness is caused by condensation of combustion gases on the interior surface of the flue. If you notice any bubbles where water is leaking from your flue pipe. The flue pipe needs to be insulated to keep it hot either replace with double wall pipe type B flue may be enough or wrapped with a FIRE PROOF insulationYou could change the pitch raise the close end but that will just run the water back down to.
You may see it puddled on top of the water heater or under it. If the flue pipe was made entirely of metal this would probably. It seemed like it was coming from inside the flue where Ive circled in red see picture.
The condensate drain system collects water removed from the air during the cooling process and disposes of it into a drain. A bad heat exchanger. This could be a life safety hazard as the gases could be drawn back into the home.
At first we thought it was rain leaking through the sleeve where the flu goes through the roof and we had a man into check that - then I noticed that the flow happened even when the weather was dry. The minimum upward slope from the furnace is 14 inch of rise for every foot of horizontal run. There is speculation that maybe there is a cap issue.
We discovered that water was running in a small steady stream down our flue pipe in the attic and dripping onto our insulation and decking below. I am concerned about water. If your furnace exhaust pipe is leaking condensation it could also be a sign that your pipe is leaking gas which is not a small issue.
Not flowing or anything but drips that come out at the top of the furnace where the vent is attached and run down the furnace and onto the platform its sitting on. A few plumbers later a local guy climbed into the loft and discovered the problem - The balanced flu had completely rusted through between the inner and outer - and the exhaust gas was coming back down. This isnt always the case and we will check for other issues soon.
Hi HVAC experts I noticed water dripping from the gas flue vent in my basement during a period of heavy rain. Basically here is whats happening. They get it fixed and working but now there are 4 of us in the attic and nobody has seen dripping from the vent pipe before.
I noticed that water was leaking on to my furnace during rain storms. All according to code but obviously this is a. A sagging or improperly sloping exhaust vent pipe can collect condensate water and restrict the airflow resulting in a tripped pressure switch.
If you have a conventional furnace the two most likely reasons for dripping water include. Considerable water pouring down into the boiler itself and then down the wall. Flues Vent Exhaust Gases In a perfect furnace the combustion of natural gas would generate only two side effects.
When we replace an existing FAU and connect with single wall pipe and connect to a transite pipe water will pour backwards into the furnace and flood the controls. Water vapor and carbon dioxide. If you notice a rivulet coming down one side of the flue vent or water dripping off an elbow joint you may have a leak coming from your flashing on the roof.
They tell me its a 5 pipe from the roof down to the 4 pipes on top of the furnace and water heater. When we asked our roofers to repair the problem they told us that the flue pipe is moving up and down.
