Burnham ES29BNI-G, ES2, 280 Input MBtu, 85% AFUE, Electronic Ignition, Natural Gas Water Boiler, Chimney Vent, Limited Lifetime Warranty with Grundfos Alpha Pump(Altitude up to 10,000 feet)

• 85% AFUE
• Electronic ignition
• Easy, intelligent IQ Control System
• Outdoor reset available – increases efficiency by 15-20%
• 70 – 280 MBH (7 sizes)
• Industry standard tapping locations fit thousands of existing boiler installations
• Reliable, American-made cast iron heat exchanger
• Lifetime limited warranty

Standard Equipment

• Insulated sleek, modern jacket
• Integrated draft diverter, damper and connector included
• Heavy gauge 1” and 1-1/2” base insulation
• Intelligent Hydronic Control – Simple self-diagnostic control system with 3-digit readout for status settings and errors
• IQ Option Panel, accepts plug & play IQ Option Cards for
• Outdoor reset with DHW priority
• Auto or manual reset low water cutoff
• Auto auxilliary high limit
• Step-opening redundant gas valve
• Stainless steel flue baffles
• Spark ignition with retry
• User-friendly wiring with 120V J-box
• Circulator
• Cast iron section assembly
• Resettable blocked vent switch
• Boiler drain valve
• Cast iron supply manifold with safety relief valve tapping

The best boiler for most homes

No matter how efficient a boiler is, if it doesn’t operate efficiently in a home’s heating system, it’s not an efficient installation. IQ gas boilers are designed to handle the high water-volume systems which are present in most homes. They have also been designed to operate at lower temperatures than conventional cast iron gas boilers. This means that the boiler doesn’t need to fire at a high rate to maintain home heating comfort, which translates into greater system efficiency and lower heating bills.

The “heart” of the matter

A cast iron heat exchanger is at the heart of every IQ boiler. Crafted at a foundry in Zanesville, Ohio it is comprised of 100% recycled material and designed for years of reliable home comfort. Each cast iron heat exchanger is water and pressure tested prior to assembly in the finished boiler.

High performance…even at high altitudes!

When it comes to home heating, every BTU is precious. U.S. Boiler Company understands, and takes energy efficiency seriously. From thick insulated plates and seamless corners in the burner base to the insulated steel jacket, every IQ boiler is designed from the ground up to keep heat in the heating system.

The boilers themselves are built in Lancaster, PA. Every component used in the IQ family of boilers is subject to strict standards of quality control and performance verification which are used throughout the manufacturing process.

The IQ Control System

Every IQ Family boiler comes equipped with the IQ Control System. This comprehensive control system ties all of the operational elements of the boiler together, makes sure that it is continually operating as efficiently as possible, and enables the optional features to increase system efficiency and provide additional operational safeguards for the boiler itself.

Save an additional 15-20% on energy costs!

One of the most unique features of the IQ Control System is that it provides a simple way to add optional features to the boiler. One of these features is a weathersensitive control, called “outdoor reset”. By installing an outdoor reset IQ option card (and the included outdoor sensor), the boiler has the ability to adjust the boiler’s operation based upon the actual air temperature outside the home. This is especially useful in the “shoulder seasons” of fall and spring, and can help save an additional 15-20% annually on energy costs

What’s going on in there?

The boiler control module can relay real-time operational information by way of an optional high resolution backlit touchscreen interface. By navigating through the easy to understand menus, complete information on your boiler’s status is literally at your fingertips. In addition, if any trouble is detected in the boiler or the heating system as a whole, the screen will flash red and inform you about the problem. The touchscreen also acts as a diagnostic tool for your professional service technician, which can contribute to lower costs for service calls.