ES2-7, 153,000 BTU Output High Efficiency Cast Iron Boiler (NG)

DescriptionNote: Product Title reflects this boiler's IBR Net Output Rating The Burnham ES2 boiler is the first all new, atmospheric, gas-fired, cast iron boiler for home heating that has been designed in decades. The ES2 Series boasts many innovative features including a proven, long-lasting, American-made cast iron heat engine, the ease and simplicity of atmospheric venting, an exclusive control system that provides features unrivaled by any boiler in the market, an unparalleled 85% efficient ENERGY STAR rating for an atmospheric gas boiler, and an attractive exterior which is equivalent or superior to the design of the most sophisticated condensing boilers. Features: The only 85% AFUE Atmospheric Cast Iron Boiler Available Qualifies for Energy Star Rebates Efficient Operation Saves Homeowners Money Innovative Design, Made in America Ideal Replacement for Millions of Existing Boiler Installations Burnham IQ Control System True Plug & Play Controls Utilizing Burnham IQ Option Cards Auxiliary High Limit Optional LCD Touch Screen Display Sold Separately Altitude up to 10,000 ft Fuel Type: Natural Gas BTU Input: 210000 DOE Rating: 178000 IBR Rating: 153000 System Type: Hydronic (Water) Efficiency: 85% Capacity (Gallons): 6 Gas Connection: 3/4" Vent Size: 7" Features: EI/Spark Ignition Width (Inches): 24-3/4" Weight (lbs): 464 lbs Warranty: 1 Year on Boiler Parts/25 Year Limited Heat Exchanger Vent Type: Atmospheric Boiler Type: High Efficiency Water Connection: 1-1/4" Height (Inches): 41 Depth (Inches): 33"