Hi,
I have a house that recently had the kitchen remodeled maybe 1 year before I purchased it. The previous contractors left some of the old 6" galvanized steel stove vent pipe. This pipe still has the old cover and termination on the exterior wall on the house and is now filled with removable spungey foam and goes into the house maybe 2 or 3 feet and just ends.
I want to install a condensing tankless gas water heater which uses 3" PVC for intake and exhaust. I plan on using a Concentric Vent Kit so the pipe that would protrude through the exterior wall would be 4.5" (if I am not mistaken).
The water heater will be located very close to the existing old pipe mentioned above. I loathe the idea of having to cut a hole through an exterior wall when there is an unused one right there.
My question is does anyone have any ideas on how I can utilize the existing exterior hole? The problem is the new pipe is smaller than exterior hole by quite a bit (4.5" vs. 6"). I could easily remove the existing pipe or maybe even run the PCV piping through the galvanized pipe. I guess I need a way to make sure the space between the hole and the pipe can be made tight and sealed (is there such a thing as a 6" diameter venting kit that connects to 3" pvc pipe?).
Thank you very much in advance for any help!
-Igor
I have a house that recently had the kitchen remodeled maybe 1 year before I purchased it. The previous contractors left some of the old 6" galvanized steel stove vent pipe. This pipe still has the old cover and termination on the exterior wall on the house and is now filled with removable spungey foam and goes into the house maybe 2 or 3 feet and just ends.
I want to install a condensing tankless gas water heater which uses 3" PVC for intake and exhaust. I plan on using a Concentric Vent Kit so the pipe that would protrude through the exterior wall would be 4.5" (if I am not mistaken).
The water heater will be located very close to the existing old pipe mentioned above. I loathe the idea of having to cut a hole through an exterior wall when there is an unused one right there.
My question is does anyone have any ideas on how I can utilize the existing exterior hole? The problem is the new pipe is smaller than exterior hole by quite a bit (4.5" vs. 6"). I could easily remove the existing pipe or maybe even run the PCV piping through the galvanized pipe. I guess I need a way to make sure the space between the hole and the pipe can be made tight and sealed (is there such a thing as a 6" diameter venting kit that connects to 3" pvc pipe?).
Thank you very much in advance for any help!
-Igor