This client requested a chimney lining as they were upgrading/converting their heating system and needed a chimney affidavit. We obtained the proper plans and permit for this installation.
The existing chimney required a stainless steel lining system to be custom fabricated and installed running on the interior of this approximately 85’ tall existing structure. The lining was 46” diameter 304 ASTM listed butt seam welded 10gage stainless steel pipe. The lining rested on a steel plate that we provided at the base of the cleanout and we provided a gas tight cleanout as required by the DOB. We made the connection from the existing breeching into the newly installed lining at the base of the chimney wall using a stainless tee fitting. We installed scaffold on the main roof for access to the top of the chimney for the duration of the project.
At the top of the chimney we fabricated and installed a custom chase with cutout and 6” wrap to secure lining in place. Pipe terminated 3’ above the top of the chimney.
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.