New Yorker 77,000 BTU High Efficiency Spark Ignition Cast Iron Boiler (Nat Gas)

** Note: Product Title reflects this boiler's IBR Net Output Rating This is a high efficiency model Product Specifications Input Gas MBH: 105 DOE Heating Capacity MBH: 88 IBR Net Output MBH: 77 Spark Ignition (AFUE %): 84.0 Approx. Shipping weight (lbs.): 319 Features Chimney vented (5") Integrated boiler control Natural gas Cast iron heat exchanger Metal section connectors Step-opening gas valve Lifetime limited warranty