304 77,000 BTU Output, Electronic Ignition, 4 Section Gas Fired Cast Iron Boiler (NG)

Heating equipment must be installed, commissioned, and serviced by a licensed and qualified professional in accordance with manufacturer instructions, applicable codes, and industry standards. Manufacturers do not accept warranty or technical support requests from homeowners or unlicensed individuals. All warranty and technical inquiries must be initiated by the licensed professional responsible for the installation.

Note: Product Title reflects this boiler's IBR Net Output Rating

The Series 3 shares many of its features with the award winning ES2, including the durable cast iron heat exchanger, rugged heavy gauge steel base, and the innovative IQ Control System. The IQ Control System allows the Series 3 to be easily equipped with an optional energy saving control package that, according to many studies, can deliver up to a 15-20% reduction in fuel consumption. In addition, the Series 3 provides even more flexible chimney venting options making it the right choice for millions of homes.

Features:

• Exclusive IQ Control System platform
• Optional LCD touch screen for system monitoring
• Time proven cast iron design for durability and reliability
• Optimum venting flexibility for homes with existing chimneys
• Limited Lifetime Manufacturer's Warranty
• Optional 5 or 10-year Extended Warranties

Specifications:

• Input (MBH): 105
• DOE Heating Capacity (MBH): 88
• Net AHRI Rating, Water (MBH): 77
• AFUE%: 84
• Vent Size (Inches): 5
• Supply Connection: 1-1/4"
• Return Connection: 1-1/4"
• Gas Valve Connection: 1/2"
• Relief Valve Connection: 3/4"
• Water Content (gal): 3
• Comes with Grundfos brand pump