I was looking at a home for my wife and I to purchase and came upon this issue with the venting of the gas fueled water heater.
The water heater has a draft hood connected to galvanized pipe that goes up 4" then bends at 45degs and is connected with a galvanized threaded fitting into a clean out in the cast iron main plumbing vent pipe.
Can anyone help on this one?
You have got to be kidding, they actually connected the flue to the stack vent. I thought I had seen everything. That is a no no. Might as well use the drain lines for conduit.