“This item worked great with my combination boiler. It was substantially less than vents offered at local HVAC and home improvement stores. Fit like a glove but I needed to order https://amzn.to/2Sb6ugw Trim 4" PVC trim rings to make a clean installation through the exterior wall.”
“Work great just needs a rain cap to complete the job, Here in Canada that is a must, snow, freezing rain, rain, that would give us problems if we don`t have a rain cover for the exhaust outlet. IT`S OKAY”
“Wish I had know about this piece sooner, as in before my clumsy HVAC guy awkwardly placed a vent directly beneath a downward firing wall sconce...all in all, a good piece to get the job done neatly.”
“This thing has a sticker that it is ULC S636 certified. So it should be fine for Canada.Minuses:Manufacturer should clearly state if this unit is applicable for water heaters or not and if not, then why (currently it says that it is for furnaces). I used it for 65K BTU water heater, plumber was OK with it.Also 45 or 90 degree elbow would be nice to have to prevent rain from getting in. The outside diameter is a bit smaller then standard S636 elbow, so it is not easy to attach.”
“This works fine for a tankless water heater and it is nice to only have to drill one hole in the exterior of the house for installation. The main problem is the intake ports are fairly large and there is no way to put a screen in them directly to keep bugs/nests from occurring. I have had this installed for a few years with no problems but it is certainly a possibility.”
