Exhaust Question

Wasn’t sure where to put this one.
I have never seen this set up before. I ran into a gas hot water heater. The home also had an indoor wood burner installed in the basement. The wood burner went right into the metal chimney. My question is this, is it ok for the gas water heater to also be exhausting into the same flue?

Square One Home Inspection Defects_128.jpg

Square One Home Inspection Defects_129.jpg


I would treat it like a wood fireplace which really should be on its own flue. The problem is actually with the water heater not drafting properly when both the water heater and wood stove are in use which could result in carbon monoxide entering the house.

I’d recommend separate flues to separate wood from gas.

Yes, just did some more digging and these need to be seperate. Thanks for the input guys.

Need a couple of lag bolts in that support column, bro’… ;):smiley:


Was anything venting up the masonry chimney?

That set up is a mess.

As the Talking Heads would sing “Burning Down the House”

No, the masonry chimney was no longer in use. Was kind of a nightmare.

Absolute incorrect venting and the open flue at the masonry chimney should be properly capped/sealed.