Originally Posted By: Robert Horky
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I just purchased a house less then a month ago and I had it inspected. There is one aspect of the house I am kind of concerned about as time goes on and it deals with what I think is a fresh air intake for the furnace and hot-water heater. The setup is this. My 80+% gas furance and water heater are located in my walkout basement. There is a 12inch diameter metal HVAC pipe that runs from a vent outside the house to a pretty much dead stop near the furnace (it does a 90degree bend on the way down to the furnace). There is no fitting on the end of the pipe, it just stops. My home inspector said this was normal but I have never seen nor heard of such a thing before? I just wanted a second opinion?
Is this a fresh-air intake for the furance & water heater? If so, does this setup work well or should I run fresh-air in another way?