771 West End Avenue

Heating plant upgrade, oil-to-gas conversion, and new chimney liner installation

73-unit, 12-story, 116,520-square-foot cooperative on the Upper West Side of Manhattan, built circa 1915

Installation of new 8-inch low-pressure gas service main piping from new point of entry, new swing- over piping, and 6-inch gas supply to boiler/burner
Demolition/removal of existing boiler and installation of new low-pressure three-pass Scotch-marine steel boiler rated at 300 boiler horsepower
New dual-fuel Johnson burner on new boiler
Tie in connection for existing domestic hot water system
New stainless steel liner within existing masonry chimney