During hard rains, water drips from a 45 elbow on my furnace vent line (in our basement). The pipe is 4" galvanized & makes a double 45 in the basement before going up through 2 floors and out the roof. I could obviously seal the piping, but then the water would run back into the furnace. As far as I can tell, the stub-up on the roof has no rain collar, gooseneck, or other rain-prevention device. Is this normal? I'd like to fix the problem, but don't want to damage my furnace, restrict the vent, or violate any codes. Thanks.
2006-09-17 08:20:37 · 8 answers · asked by stickyfuzz 2 in Home & Garden ➔ Do It Yourself (DIY)
You say 4 inch galvanized, you should at least have double walled b-vent on the outside of the house, and hopefully that is what you have all the way to the furnace. The vent termination on the roof should consist of at least 4 parts. 1. The vent pipe itself. 2. The vent termination cap. 3. The storm collar. And 4. The vent pipe roof flashing. Your local hardware should be able to supply you with all the needed parts.
2006-09-18 14:19:52 · answer #1 · answered by lpgnh3 4 · 0⤊ 0⤋
Furnace Vent Cap
2016-11-13 22:05:25 · answer #2 · answered by ? 4 · 0⤊ 0⤋
You can buy a cap for the end of the pipe at any plumbing and heating store. The best of them have not only a cap, but a screen to prevent birds, leaves, and large insects from entering the pipe. All you'll need is a few of self-taping screws and a driver to attach it. The cap should fit around the OUTSIDE of the piece of pipe that sticks out. This will keep any rain that drips down the sides from entering the pipe. If that doesn't fix the problem, the rain water may be entering around the base where the pipe and roof meet. A temporary fix (may last a couple of years) is to seal it with a tar type sealer. The more permanent repair would involve removing the shingles around the pipe, placing a rubber flange around the pipe, then putting new shingles over the flange.
2006-09-17 08:25:56 · answer #3 · answered by ***&&*** 3 · 0⤊ 0⤋
These are all options but not for your problem...
I live in a rural area with a lot of wind as well...
The water comes thru mine right in the holes for venting on the side of the rain cap. My Vent cap clears my roof which is a 5/12 pitch...
When it rains hard, my pipe drips...
The solution is a better Rain Cap made for High Wind and prevents Side Blowing Rain from blowing into the Vent Pipe... Something staggered to allow venting and preventing the water from blowing straight down the pipe...
Do a search on High Wind Rain Caps as well is better made ones...ie. Takagi....
2014-10-08 06:37:58 · answer #4 · answered by Cynder 1 · 0⤊ 0⤋
First of all you have to have the flashing around the chimney on the roof, it is the only thing that keeps the water from running in the hole the chimney comes out of. If it is not sealed you will get all the rain that runs down your roof directly above the opening. And you should also have a rain cap on the top; if you get the right rain cap it will not restrict the exhaust from your furnace.
2006-09-17 08:29:27 · answer #5 · answered by Anonymous · 0⤊ 0⤋
For one rain usually only comes down in a few inches and with even a slight wind will not all go down the chimney secondly a chimney is seldom a straight shaft usually has a slight bend which heats up and any rain hitting it turns to steam and vents with the smoke.
2016-03-22 13:42:29 · answer #6 · answered by ? 4 · 0⤊ 0⤋
If you have a hard rain and 2" hail coming in from the vent because the vent cap was destroyed in the hail storm, can this cause the furnace to malfunction or leak carbon monoxide??
2016-08-08 14:13:15 · answer #7 · answered by Donna 1 · 0⤊ 0⤋
Is the water coming from INSIDE the vent, or is it just running down the outside of it. I had a similiar problem recently and it was the flashing around the vent....not THROUGH the vent.
If you have a ventcap, this MUST be the problem.
2006-09-17 08:25:51 · answer #8 · answered by Anonymous · 0⤊ 0⤋
It needs a cap on top of pipe on roof and a collar where pipe exits roof to keep water out. Could be that the collar just needs to be sealed or new cap on pipe. I would call a pro to look at it CO could be leaking into house.
2006-09-17 12:34:21 · answer #9 · answered by wowwhatwasthat 4 · 0⤊ 0⤋
My mom had the same problem. It should have a rain collar on it. you can get a pvc version at a homedepot or menards and glue it on if it is made of pvs. for eath pipe or galvanized you can get an aluminum one and roofing tar in a tube (if it is low on the roof) for higher ones they make fittings just like the pvc one. Don't seal it. It is there for a reason.
2006-09-17 08:25:46 · answer #10 · answered by ragajungle 2 · 0⤊ 0⤋