Rheem
Classic
®
Series
Upflow/Horizontal Gas Furnace
FORM NO. G11-542 REV. 2
R801S- (Upflow/Horizontal) Series
80% A.F.U.E.†
Input Rates 50-150 kBTU
Air
Gas Furnaces
R801S (UF/HZ) Series
Annual Fuel Utilization Efficiency -
AFUE
THIS MODEL
ENER UIDE
97%
78%
HIGH
MID
82%
88%
80.0%
✝
A.F.U.E. (Annual Fuel Utilization Efficiency) calculated in accordance with
Department of Energy test procedures.
•
80% residential Gas Furnace CSA certified
•
3 way multi poise design UF / HZ
•
PlusOne
™
Diagnostics — 7 Segment LED all units
•
PlusOne
™
Ignition System – DSI for reliability and longevity
•
Heat exchanger is removable for improved serviceability.
Aluminized steel construction provides maximum corrosion
resistance and thermal fatigue reliability.
•
Solid doors provide quiet operation
•
Low profile 34" cabinet ideal for space constrained
installations
•
Blower shelf design – serviceable in all furnace orientations
•
Hemmed edges on cabinets and doors
•
1/4 turn door knobs for tool less access
•
Integrated Controls board features dip switches for easy
system set up
•
QR codes for quick access to product information from your
smart phone or tablet
