Specification

40 and 50-Gallon Models Maximum and Minimum Vent Lengths
NUMBER OF MINIMUM MAXIMUM
90° ELBOWS NUMBER PIPE PIPE
WITH VENT OF 45° LENGTH LENGTH
TERMINAL ELBOWS REQ. (FT.) (FT.)
One (1) None 3.0 44.0
One (1) One (1) 3.0 41.0
Two (2) None 3.0 38.0
Two (2) One (1) 3.0 35.0
Three (3) None 3.0 32.0
NUMBER OF MINIMUM MAXIMUM
90° ELBOWS NUMBER PIPE PIPE
WITH VENT OF 45° LENGTH LENGTH
TERMINAL ELBOWS REQ. (FT.) (FT.)
One (1) None 3.0 95.0
One (1) One (1) 3.0 92.5
Two (2) None 3.0 90.0
Two (2) One (1) 3.0 87.5
Three (3) None 3.0 85.0
Three (3) One (1) 3.0 82.5
Four (4) None 3.0 80.0
Four (4) One (1) 3.0 77.5
Five (5) None 3.0 75.0
For the 2" vent, one 90° elbow is approximately equal to 6 feet of pipe.
One 45° elbow is approximately equal to 3 feet of pipe.
NOTICE: The mixing of 2" and 3" vent pipe is not recommended.
If 3" pipe is used, a 2" to 3" reducer fitting is recommended at
the rubber coupling.
This water heater is supplied with a 2" Schedule 40 PVC 45° vent
terminal. When venting with 3" pipe, a Schedule 40 PVC 45° vent
terminal must be used. Screens for both 2" and 3" vent terminals
have been included.
For the 3" vent, one 90° elbow is approximately equal to 5 feet of pipe.
One 45° elbow is approximately equal to 2.5 feet of pipe.
Maximum and Minimum Vent Lengths for 2" Vents Maximum and Minimum Vent Lengths for 3" Vents
HOT
WATER
CONNECTION
COLD
WATER
CONNECTION
POWER VENT
ASSEMBLY
C
B
F
A
D
G
G
E
T&P FITTING
3/4" N.P.T.
1/2"
ANODE ROD
Fuel Type Description
Nominal
Gallon
Capacity
Rated
Gallon
Capacity
Model
Number
Gas Input
in Thous.
Btu/h
Recovery
in G.P.H.
90° F Rise
First Hour
Delivery
G.P.H.
Ht. to
Top of
Assembly
A
Tank
Height
B
Diam.
C
Ht. to
Gas
Conn.
D
Water
Conn.
Center
E
Ht. to
Side T&P
Valve
F
Water
Conn.
Size
G
Ship
Weight
(LBS)
Uniform
Energy
Factor
(UEF)
Nat. / LP Tall 50 48 XG50T06PN38U0 38 38.4 86 66-1/2 58 21-3/4 14 8 52-1/2 3/4 188 0.68
Nat. / LP Tall 40 38 XG40T06PN36U0 36 36.4 67 67-1/2 59 19-3/4 14 8 53-1/2 3/4 160 0.64
®
Power Vent Ultra Low NOx Gas Specifications
Uniform Energy Factor and rated gallon capacity based on Department of Energy (DOE) requirements.
03/18 FORM NO. THD-PGUPV
In keeping with its policy of continuous progress and product improvement, Rheem reserves the right to make changes without notice.
Rheem Water Heating • 1115 Northmeadow Parkway, Suite 100
Roswell, Georgia 30076 • www.rheem.com