Promoted by the manufacturer as a reliable and durable unit, the Tempstar SmartComfort VS 80 (or F8MV) is a variable speed, two-stage gas furnace achieving 80 percent AFUE. It can be installed in tight spaces thanks to its 33-inch height, is functional with many thermostats and is available in multi-position models. If the VS80 is installed in a downflow orientation, a downflow vent guard kit is required.
The VS 80 features an ECM variable speed motor that, according to the manufacturer, will save energy by operating more frequently at a low speed than the higher available speed. The unit’s variable-speed blower improves the quality of indoor air by removing moisture while cooling the home. Sound production is minimized by the solid steel, thermal-lined cabinet surrounding the blower. The heat exchanger is manufactured with corrosion-resistant aluminized steel and interlocking seams, making it durable against cracking or separating.
Equipped with a reliable direct hot surface ignition system and safety features that control the temperature limit, the VS 80 shuts off in the event of a system blockage. An electronic control system will communicate diagnostic information.
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