Lennox GWB9-IH High-efficiency Gas-fired Water Boiler

The GWB9-IH is designed to integrate easily into a traditional radiator system. Its lightweight and compact design allow flexible installation inside your home. Fuel flexibility lets you use either natural or LP gas as a heat source.
HIGH-EFFICIENCY, GAS-FIRED WATER BOILER
Engineered for lasting comfort and energy savings.

Features

Smart with energy use

With an efficiency rating of up to 90% AFUE, the GWB9-IH Boiler allows you to stay comfortable during even the coldest weather, without worrying about energy costs.

Flexible installation means you have options

The GWB9-IH is designed to integrate easily into a traditional radiator system. Its lightweight and compact design allow flexible installation inside your home. Fuel flexibility lets you use either natural or LP gas as a heat source.

Tested and proven for dependable performance

Every unit is fire-tested and inspected prior to shipping to ensure the highest possible degree of operating reliability. So you can take comfort knowing the boiler will deliver dependable performance, season after season.

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 heat exchangers. So you enjoy rapid warmth when you need it.

Lennox GWB9-IH High-efficiency Gas-fired Water Boiler was last modified: August 2nd, 2023 by HVAC Expert
Feature GWB9-IH Boiler

GWB9-IH Boiler

Efficiency Up to 90% AFUE
Fuel Source Natural Gas; convertible to LP
Sizes/Capacities Three
Burner Type Stainless Steel
Ignition Hot Surface
Warranty 15-Year Limited Warranty on Heat Exchanger; 10-Year Limited Warranty on covered parts

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People like you shared their purchase and installation experience!

Steve NishimuraSteve Nishimura

We were looking to replace A/C, furnace and water heater and had a number of companies provide quotes. Brian of Cozy Comfort Plus was the most engaging person we met and most importantly, the person we trusted the most. His price was very competitive and we decided to go with him. His team of four men, led by Mir, came in and got the job done in one day. We are very happy with the Lennox equipment and the professional installation job done by Cozy Comfort Plus.

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Jeffrey HoffmanJeffrey Hoffman

From installation to maintenance, Cozy Comfort Plus Inc. provided us with prompt, quality service. It took under a day to install our Mitsubishi split-type air conditioner in May, 2021. This week, they attended to cleaning our unit’s filters in less than a day’s notice. The technician explained how to remove, clean and reinstall the filters ourselves which will save us money down the road. I highly recommend Cozy Comfort without reservation.

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antoniettaantonietta

Second time using this company and I recommend them highly. Product was explained, price was comparable, if not better than other companies. Installers were pros and work was completed on time. Very happy customer.

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