Specification
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
Rating
(Gallons)
Ht. to
Vent
A
Tank
Height
B
Diam.
C
Ht. to
Gas
Conn.
D
Vent
Size
E
Water
Conn.
Center
F
Ht. to Side
T&P Valve
G
Water
Conn.
Size
H
Ship
Weight
(LBS)
Uniform
Energy
Factor
(UEF)
Performance – Self Powered Diagnostic Control
Natural Gas Tall 50 48 XG50T06EN38U1 38 38 86 61-1/4 58-3/8 20-1/2 14 3 or 4 8 51-3/8 3/4 150 0.63
Natural Gas Short 50 48 XG50S06EN40U1 40 40 85 54-1/4 51-1/8 23-3/4 14 3 or 4 8 44-1/4 3/4 186 0.63
Natural Gas Tall 40 38 XG40T06EN38U1 38 38 71 61-1/2 58-1/2 19 14 3 or 4 8 52-1/4 3/4 127 0.58
Natural Gas Short 40 39 XG39S06EN38U1 38 38 68 52-1/8 49-1/4 21 14 3 or 4 8 42-3/4 3/4 135 0.59
Natural Gas Tall 29 28 XG29T06EN30U1 30 30 51 59-3/4 56-7/8 16-1/2 14 3 or 4 8 50-7/8 3/4 112 0.60
Performance – Self Powered Diagnostic Control with Top T&P
Natural Gas Tall 50 48 XG50T06TN38U1 38 38 86 61-1/4 58-3/8 20-1/2 14 3 or 4 8 – 3/4 150 0.63
Natural Gas Tall 40 38 XG40T06TN38U1 38 38 71 61-1/2 58-1/2 19 14 3 or 4 8 – 3/4 127 0.58
Performance – Self Powered Diagnostic Control – High Demand
Natural Gas Tall 55 55 XG55T06EN45U2 45 45.5 99 59-1/8 55-7/8 23-3/4 14 4 8 47-3/4 3/4 188 0.62
®
12/20 FORM NO. THD-PGU N Rev. 8
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
Ultra Low NOx Gas Specifications
Uniform Energy Factor and rated gallon capacity based on Department of Energy (DOE) requirements.
†
LEED Point = 1
E
G
BA
C
F
H
HOT
WATER
CONNECTION
H
COLD
WATER
CONNECTION
D
1/2"
3/4" N.P.T.
RELIEF
VALVE
OPENING
FLUE
ANODE ROD
E
BA
C
F
H
HOT
WATER
CONNECTION
H
COLD
WATER
CONNECTION
D
1/2"
FLUE
ANODE ROD
TOP T&P
1-1/2" ABOVE
TOP PAN TO
CENTER OF
OPENING
INSTALLED
T&P VALVE
Top T&P Models