The Rheem Prestige Series™ 90 Plus High Efficiency line of horizontal gas furnaces are designed for utility rooms, closets, or alcoves.
- Heat exchanger is constructed of all stainless steel for maximum corrosion resistance and thermal fatigue reliability.
- Modulating Function: when used with a modulating thermostat, modulation rate between 40% and 100% of total capacity.
- Two Stage Function: when used with a two stage thermostat, furnace operates at 40% on first stage, and stages up to 65%, then 100% for second stage.
- Multistage Function: when used with a single stage thermostat, furnace functions as a three stage furnace operating at 40%, 65%, and 100% of total capacity.
- Reduced firing rates, electrically efficient ECM2+ motor, and solid doors provide the ultimate quiet operation.
- Low speed constant fan.
- Constant temperature rise for superior comfort.
- Seven segment LED for system diagnostics.
- Diagnostic history for troubleshooting.
- Two speed induced draft motor.
- Direct spark ignition with remote sense.
- Top electrical connections, left or right gas and condensate drainage connections on downflow models.
- Optional indoor and outdoor combustion air.
- All models comply with Department of Energy test procedures for 2% or less electrical efficiency ratings.