Rheem classic R801S series - Horizontal Application Dimensional Data; Horizontal Furnace Dimensions Diagram; Horizontal Dimensional Specifications Table; Horizontal Installation Warning

Air
Dimensional Data
R801S (UF/HZ) Series
7
MODEL
R801S-
A B C D E F
REDUCED CLEARANCE (IN.) [mm]
SHIP
WGTS.
(LBS.) [kg]
LEFT
SIDE
RIGHT
SIDE
BACK TOP FRONT VENT
050 14
1
/2 [356] 12
27
/32 [326] 10
5
/8 [270]
➀
11
1
/2 [292] 1
7
/8 [48] 0
4 [102] ➁
0 1 [25] 3 [76]
6 [152] ➂
85 [38.6]
075 17
1
/2 [445] 16
11
/32 [415] 12
3
/8 [314]
➀
15
1
/2 [381] 2
1
/2 [64] 0
3 [76] ➁
0 1 [25] 3 [76]
6 [152] ➂
105 [47.6]
100 21
1
/2 [533] 19
27
/32 [504] 14
1
/8 [359]
➀
18
1
/2 [470] 2
1
/2 [64] 0 0 0 1 [25] 3 [76]
6 [152] ➂
120 [54.4]
125 24
1
/2 [622] 23
11
/32 [593] 15
7
/8 [403]
➀
22
1
/2 [559] 2
1
/2 [64] 0 0 0 1 [25] 3 [76]
6 [152] ➂
140 [63.5]
150 24
1
/2 [622] 23
11
/32 [593] 15
7
/8 [403]
➀
22
1
/2 [559] 2
1
/2 [64] 0 0 0 1 [25] 3 [76]
6 [152] ➂
150 [68] .
NOTES: ➀ May require a 3" [76 mm] to 4" [102 mm] or 3" [76 mm] to 5" [127 mm] adapter. 4" adapter included with (-)801P units.
➁ May be 0" [0 mm] with type B vent.
➂ May be 1" [25 mm] with type B vent.
Furnaces must be vented in accordance with the National Fuel Gas Code, ANSI Z223.1 and/or Can/CGA-B149 Installation Codes and in accordance with
local codes.
[ ] Designates Metric Conversions
Dimensional Data: Horizontal Model
Horizontal Application
WARNING
THIS FURNACE IS NOT APPROVED
OR RECOMMENDED FOR INSTALLATION
ON ITS BACK, WITH ACCESS DOORS
FACING UPWARDS.