ES23BNI-G 3-Section Gas-Fired Steam Boiler With Intelligent Hydronic Control and Vent Connector, Natural Gas Fuel, Electronic Ignition

The ES2™ blends unmatched performance with long lasting durability and exclusive energy saving features. Designed as an optimal replacement boiler for millions of homes with existing chimneys, the ES2™ achieves an 85% AFUE. At the heart of the ES2™ is one of the most advanced cast iron heat exchangers in the industry and a well-insulated heavy-duty steel base for longevity. Even the ES2™'s control system is class leading. The IQ Boiler Control System allows the ES2™ to be easily equipped with an optional energy saving control package that can achieve up to a 15 to 20% reduction in fuel consumption according to most studies.

Burnham® Gas-Fired Steam Boiler, 3-Section, Series: ES2™, Natural Gas Fuel, 51 mbh Net IBR, 70 mbh Input, 1-1/4 in NPT Connection, Electronic Ignition, 59 mbh DOE Heating, 85 % AFUE, 120 VAC, 15 A, 3 A Fuse, 2 gal Water/Steam Content, 4 in Dia Flue Outlet, Chimney Vent, Cast Iron Housing Material, Floor Mounting, 12-3/4 in W x 33 in D x 41 in H, Domestic