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Winnipeg's Heating and Cooling Experts

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Glossary

AFUE

Annualized Fuel Utilization Efficiency is a measure of your furnace's heating efficiency. The higher the AFUE percentage, the more efficient the furnace. The minimum percentage established by the DOE for furnaces is 78%.

Boilers

Model Afue

GWM-IE Boiler
High-efficiency, gas-modulating condensing water boiler

up to 95

GWB9-IH Boiler
High-efficiency, gas-fired water boiler

up to 90

GWB8-IE Boiler
Standard-efficiency, gas-fired water boiler

up to 84.4

GWB8-E Boiler
Standard-efficiency, gas-fired water boiler

up to 83.9

COWB3 Boiler
Standard-efficiency, oil-fired water boiler

up to 85.2

GSB8-E Boiler
Standard-efficiency, gas-fired steam boiler

up to 82.7