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Lennox GWB8-IE GAS-FIRED WATER BOILER

A reliable way to stay warm and save energy

Rating  Customer Ratings (10)
Price Guide $$
Efficiency Rating (AFUE) up to 84.4
Warranty

20-Year Limited Warranty on Heat Exchanger; 5-Year Limited Warranty on covered components. This product may be eligible for 10-Year Limited Warranty coverage with product registration.
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Lennox GWB9-IH HIGH-EFFICIENCY, GAS-FIRED WATER BOILER

Engineered for lasting comfort and energy savings

Rating  Customer Ratings (3)
Price Guide $$$
Efficiency Rating (AFUE) up to 90
Energy Star® ENERGY STAR logo ENERGY STAR® Qualified
Warranty

15-Year Limited Warranty on Heat Exchanger; 10-Year Limited Warranty on covered parts.
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Viessmann Vitodens 100-W, B1HA – High Efficiency Wall Mount Condensing Boiler

Overview

Rated input
21 to 125 MBH – 6.2 to 36.6 kW
Efficiency (AFUE)
95%
Fuel
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Natural gas, propane gas

Application range
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For residential homes and apartment units, new buildings and retrofits

DHW heating
On-demand DHW available with B1KA Combi boiler (up to 3.6 GPM). Ideal for apartment units and houses with one DHW draw point.
Warranty
Limited lifetime warranty in residential applications
Additional features
Compact, lightweight wall-mount design and zero clearance to combustibles make it a great choice for limited-space installations.
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