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Hello all, I'm new to plumbing, and I don't want to screw something up, and want to remain within the applicable code (IPC where I live).

I'm installing a Saniflo Plus macerating toilet in my basement. It requires a two way vent (not an AAV). I do not have access to my whole house vent in my basement, at least I don't think so. But I followed a brick stack up to my attic, and it exhausts out of my roof. The problem is that my hot water boiler vents to it. Is it even remotely up to code for me to hammer drill a hole into that somewhere away from the boiler exhaust and vent my toilet into that too (at the coded 1/4"/foot slope)?

I've included a picture. Thanks...this is new to me. If I can't figure it out, I'll hire a licensed professional.
 

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Remodel and New Build GC
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11,302 Posts
I'v never seen that.....was that an old chimney chase venting your WH....I had no idea that was legal or illegal or more importantly safe.........

If that is a chimney chase, could the OP run a sealed PVC vent within that chase.....not suggesting that...jest discussing....

Or run a bvent for the WH and a PVC vent within that chase....Just looking for ideas,,,,
 

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retired framer
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59,887 Posts
I'v never seen that.....was that an old chimney chase venting your WH....I had no idea that was legal or illegal or more importantly safe.........

If that is a chimney chase, could the OP run a sealed PVC vent within that chase.....not suggesting that...jest discussing....

Or run a bvent for the WH and a PVC vent within that chase....Just looking for ideas,,,,
Ours was done like that back in the 60s or maybe it was the 50s. It was never changed with new units after that.
 

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Premium Member
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I'v never seen that.....was that an old chimney chase venting your WH....I had no idea that was legal or illegal or more importantly safe.........

If that is a chimney chase, could the OP run a sealed PVC vent within that chase.....not suggesting that...jest discussing....

Or run a bvent for the WH and a PVC vent within that chase....Just looking for ideas,,,,
There are kits to vent appliances in masonry chimneys.

No, you don't put the plumbing vent in the chimney :wink2:
 

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Remodel and New Build GC
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11,302 Posts
I'm probably wrong...but I sort of thought that gas venting had to be designed (not too small or too large) to keep basically a good venting flow that was warm enough to keep rising and mediate any backdraft/flow issues.?????????
 
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