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Acidic Gas Reduction for Residential Natural Gas Furnace

M00018665

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Acidic Gas Reduction for Residential Natural Gas Furnace

Book by ASHRAE, 2023

Zhiming Gao, Ph.D., Member ASHRAE; Kashif Nawaz, Ph.D., Member ASHRAE; Kyle Gluesenkamp, Ph.D., Member ASHRAE and Steve Kowalski, Member ASHRAE

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Most U.S. homes still use noncondensing units with an annual fuel utilization efficiency (AFUE) of ~80%, rather than efficient condensing furnaces. This article discusses a low-cost acidic gas reduction (AGR) catalyst technology that enables a novel condensing natural gas furnace with an ultraclean (i.e., nearly zero) flue gas and neutral condensate that is environmentally friendly.