LEWISBURG, TN — The 90% AFUE Tempstar PS90 gas furnace is certified for use in single-pipe installations that draw combustion air from within the conditioned space, according to a statement from ...
Designed to offer contractors easier installation and service and improved reliability, the line of Heil® 95.5 and 92.1 percent AFUE Performance Series gas furnaces feature a dual-vent design to allow ...
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