The FG6T 2-stage gas furnace from Tappan is a discontinued high-efficiency, Energy Star series that can be installed as an upflow or horizontal unit. The A and K models have AFUE ratings of more than 80 percent while the C and L models operate at 90- to 92-percent AFUE ratings. The C and L models also feature a variable speed blower. Any of these units can be installed in small spaces such as closets or utility rooms and are LP convertible.
The FG6T’s aluminized steel in-shot burners, use of insulation and low-fire operation minimize this furnace’s fuel consumption, according to the manufacturer. Durability is enhanced by the aluminized steel in the tubular design of the counterflow heat exchanger. The surface ignitor, redundant gas valve and induced draft blower all further ensure the unit’s reliability.
In addition to being mechanically and electrically tested on the manufacturing line for reliability, various delays and cycles are programmed into the furnace to help extend its life and proper function. Safety and reliability are further enhanced by the burner flame monitor, vent switch and 3-amp fuse. The electronics also allow for easy serviceability and add-ons.
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