Two Water Heaters

[Patrick Bolliger]

First of all I think everyone can agree that this is a "hack" job to begin with...Joe.. Refer out for evaluation by a licensed qualified plumber..

Second If this is in Chicago, It has to follow some basics on installation.. Our "code" is clear as mud.. All installation within attics are NOT allowed with new installations BUT they can be in attics IF they follow 18-29-502-6 BUT
the venting is NOT the best yet single pipe is allowed in attics...YES per Peoples Gas... Now the slope connections and such...well that is a hack job..

The problems.. Combustion air? Flooring? Solid or just a sheet under the W/H// Access? Sizing.. TPR extension is WRONG if it is PVC.. How about CPVC??.. Drain at the floor? Drip pan? Can't have the TPR drain in the pan... Yes it's that confusing.. How about the location of these appliances.. What do you think the combined weight is... Over the living room ceiling or bedroom..

NOT allow per City Code.. How is that for confusing...

[Joseph Tribuzio]

Originally Posted by belliott

Should be, but that does not always show properly and this is in the attic where hopefully one finds circulation.

Needs to be re piped anyway.

Yeah, there were vents just to the right and left. At least ventilation was good.

The pipes may be covered in asbestos insulation at some sections.

This will be very hard to see in the pic, but the " roofer" installed composition shingles over the existing wood shingles

It was a 1918 two flat.

[Joseph Tribuzio]

Oh yeah, check this out... Lol

[Brian E. Kelly]

Originally Posted by jtribuzio

Oh yeah, check this out... Lol

So, they are just venting sewer gas into the Attic?? Nice

[rmaday]

Originally Posted by bkelly2

So, they are just venting sewer gas into the Attic?? Nice

That way the birds nesting in the waste stack aren't subject to the sewer gas.

[Bob Elliott]

Any chance that could ignite?

[rmaday]

Originally Posted by belliott

Any chance that could ignite?

The birds? Or the sewer gas?

[Kenton H. Shepard, CMI]

Originally Posted by jtribuzio

Wondering if this venting configuration is OK or if there could be an issue with a larger WH unit upstream of a smaller one? This is in an unfinished attic.

There are other issues there, but im just wondering if the venting is all good

"G2427.10.4
Where two or more vent connectors enter a common gas vent, chimney flue or single-wall metal pipe, the smaller connector shall enter at the highest level..."

Also, there are length requirements which might be an issue. Definitely one for referral to a qualified contractor.