This client provided us with plans for lining the boiler chimney. Their chimney needed to be gas tight for an upcoming upgrade/conversion We were awarded the project and obtained plans and permits.
We installed 240’ of 22” diameter 304 ASTM listed butt seam welded 10gage stainless steel pipe. We installed a steel base plate at the bottom of the chimney and poured a concrete pad. We supplied and installed a gas tight clean out as required by NYC DOB.
We connected the newly installed chimney lining to the existing breeching using a stainless steel tee fitting.
We installed a custom chase cover and an offset extension with pipe being mounted with framed supports in 3 areas.
Once the lining was installed we performed a pressurized smoke test and were able to issue the chimney affidavit for NYC DOB and Con-Edison.