The Tempstar N8MS is a single-stage gas furnace with an efficiency rating of 80% AFUE. The N8MS is available as the N8MSN (Standard) and N8MSL (Low NOx). It is designed for multi-position installation — upflow, downflow, and horizontal left/right — and its 33 1/3″ height allows greater installation flexibility. It features an RPG (Rigid Press Joint) aluminized steel primary heat exchanger for efficient heat transfer. A fixed-speed blower motor and single-stage gas valve help provide even, comfortable temperatures. It has a one-piece prepainted steel cabinet and is factory shipped for natural gas, with kits available for propane conversion.
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