The Evolution® 987M is a fully modulating gas furnace with load matching performance that delivers up to 98.3 percent AFUE. A modulating gas valve is capable of adjusting from 40 to 100 percent of ...
The Amana® AMVM96 modulating gas furnace, with its self-calibrating, modulating gas valve and variable-speed blower, delivers precise heating performance, circulating air throughout the home, offering ...
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