It is Energy Star rated and offers a two-stage gas valve that switches between high- and low-fire settings for added comfort and up to 96 percent AFUE heating efficiency.
This Energy Star-rated furnace offers a two-stage gas valve that switches between high- and low-fire settings for added comfort and up to 96 percent AFUE heating efficiency, lowering homeowners’ energy bills.
While many of those R-22 systems have been replaced with R-410A units, a large installed base still remains, meaning that technicians will have to know how to troubleshoot and service both types of equipment for many years to come.
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