The Direct Comfort GDH8 Gas Furnace with two-stage heating and a circulating blower provides efficient and economical performance. Unlike single-stage gas furnaces that operate all on or all off, a Direct Comfort multi-speed gas furnace typically runs up to 90% of the time in the low-speed capacity on most days. But when the temperature outside is frightfully cold, this furnace quietly ramps-up to high-speed capacity to deliver all the warm, comfortable heat your home needs. The components of your Direct Comfort GDH8 Furnace including the multi-speed blower and two-stage gas valve have been specially selected to reduce the noise levels common in other furnaces without these features. Plus, because your furnace's Dual$aver Technology provides steady, gradual heat, it operates more quietly than furnaces without this technology. Finally, we house these components in a fully insulated, heavy-gauge steel cabinet. The result: quiet comfort.
Standard Features:
Dual-diameter tubular heat exchanger
Two-stage gas valve control technology allows installer to activate the two-stage valve with the flip of a dipswitch
110V Silicon Nitride igniter
Quiet four-speed direct-drive circulating blower motor
Furnace control board with self-diagnostics, color coded low-voltage terminals and provisions for electronic air cleaner and 24-volt humidifiers
Control board stores the last five diagnostic codes in memory; simple push-button activation outputs the fault history to a flashing red LED
Low constant fan allows homeowner to activate the low heat speed to efficiently circulate air throughout the home
Self-adjusting feature automatically adjusts furnace to high- or low-stage operation based on outside temperature without an outdoor temperature sensor
Certain models available with low NOx emissions
Cabinet Features:
Fully insulated, heavy-gauge steel cabinet with durable baked-enamel finish
Foil-faced insulation lines the heat exchanger compartment
Designed for multi-position installation: upflow, horizontal left or right
Removable bottom for side or bottom-return applications
Convenient left or right connection for gas/electric service