ES2-3, 51,000 BTU Output High Efficiency Cast Iron Boiler (NG)

DescriptionNote: Product Title reflects this boiler's IBR Net Output Rating 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 15-20% reduction in fuel consumption according to most studies. Features: Limited Lifetime Manufacturer’s Warranty Exclusive IQ Control System platform Optional LCD touch screen for system monitoring Time proven cast iron design for durability and reliability Designed for homes with existing chimneys Optional 5 or 10-year parts & limited labor warranty Extended Boiler Warranty Plans are administered by CornerStone United, Inc. Fuel Type: Natural Gas BTU Input: 70000 IBR Rating: 51000 DOE Rating: 59000 System Type: Hydronic (Water) Efficiency: 85% Capacity (Gallons): 2 Gas Connection: 1/2" Vent Size: 4" Features: EI/Spark Ignition Width (Inches): 12-3/4" Weight (lbs): 254 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"