Decorative Only
« All boilers

gwb9-ih

Boiler

High efficiency, gas-fired condensing water boiler

GWB9-IH Boiler
Rating
Price Guide
Efficiency Rating (AFUE)
90
Energy Star®
ENERGY STAR logo ENERGY STAR® Qualified
Warranty

15-Year Limited Warranty on Heat Exchanger; 10-Year Limited Warranty on covered parts.

View Full Product Specifications

Heating Savings

Our Lennox Dealers are here to help

Your Location:
Find a Dealer

Features

Decorative Only
Decorative Only

Smart with energy use

With an efficiency rating of 90% AFUE, the GW9-IH boiler allows you to stay comfortable during even the coldest weather, without worrying about energy costs 90% of fuel is converted into usable heat.

Decorative Only

Flexible installation means you have options

The GWB9-IH is designed to integrate easily into a traditional radiator system. Its compact design allows flexible installation inside your home for easy replacement of an older boiler with a higher efficiency model.

Flexible installation means you have options
Decorative Only
Illustration of Tested and proven for<br>
dependable performance

Tested and proven for
dependable performance

Tested and proven for
dependable performance

With a corrosion-resistant cast-aluminum heat exchanger, you can take comfort knowing the boiler will deliver dependable performance, season after season.

Decorative Only

Comforting warmth, right when you want it

The cast-aluminum heat exchanger in the GWB9-IH transfers heat three times faster than conventional cast-iron exchangers. So you enjoy rapid warmth when you need it.

Comforting warmth, right when you want it

Ratings & Reviews

See what other customers are saying about
GWB9-IH Boiler

5 Stars 5/5
January 18, 2022

5 Stars 5/5
July 13, 2021

5 Stars 5/5
March 29, 2021

Map pin

Get answers from a Lennox® Dealer.

It's easy to find an expert Lennox Dealer who can help you make the most of your HVAC system.

View Now

Get the answers you need from your preferred dealer:

AZ Air Cond & Heating

Go to my Dealer's Page
Marker
Second
Rio Verde
Tom's Thumb Trailhead
Kierland
McDowell Mountain Regional Park
Mountain Gate
Eagle Mountain
Butterfly Wonderland
Roadrunner Park
Grayhawk Golf Club
Alhambra
Fountain Hills
Hurricane Harbor Park
Fort McDowell
Phon D Sutton
Arizona Business Park
Glendale
Thunder Bird Conservation Park
Taliesin West
Foxwood
Phoenix Mountains Preserve
Paradise Valley
alt goes here
alt goes here

Map data ©2022 Google

Resources

  • Annualized Fuel Utilization Efficiency (AFUE)
    A measure of furnace heating efficiency. The higher the AFUE, the more efficient the furnace.
    Learn More
  • Energy Star®
    ENERGY STAR® is a program of the U.S. Environmental Protection Agency (EPA) designed to help consumers and businesses save money by choosing energy-efficient products and technologies. Heating, ventilation and air-conditioning (HVAC) equipment with the ENERGY STAR® label meets or exceeds federal guidelines for energy-efficient performance.
    Learn More
  • Heat Exchanger
    A heat exchanger is a heating component that is located in the furnace and transfers heat to the surrounding air, which is then pumped throughout the home.
    Learn More
Energy Star

Proper sizing and installation of equipment is critical to achieve optimal performance. Split system air conditioners and heat pumps (excluding ductless systems) must be matched with appropriate coil components to meet ENERGY STAR criteria. Ask your contractor for details or visit www.energystar.gov.

Loading...
alt text goes here

It's also easy to find an expert Lennox® dealer who can help
you make the most of your HVAC system.

View Now