Brochure

40
No option available for top T&P valve.
All models have ¾” top water connections and comes standard with side loop fittings.
All models certified from sea level to 7,700 ft. elevation.
17˝/22˝ MIN.
80˝ MAX. HORIZONTAL VENT
T&P
VALVE
FRONT VIEW
OUTLET
GAS
VALVE
INLET
SIDE VIEW
THRU-THE-WALL
INSTALLATION
B
F H
G
A
C
T&P
VALVE
D
MAX. HEIGHT IS
68˝ ABOVE
TOP OF HEATER
TOP VIEW
COLD INLET
HOT OUTLET
E
5˝
Model Number
Gallon
Capacity
First
Hour
Rating
Gallon
Energy
Factor
Recovery
@ 90°F
Rise
Gallon Per
Hour
BTU
Input
Per
Hour
Approx.
Shipping
Weight
(lbs)
GDNL-40L-100
40 59 0.62 39 36,000 179
GDNT-50L-100
50 81 0.62 41 38,000 193
Model Number
Concentric
Vent
Connection
Dimensions in Inches
A B C D
GDNL-40L-100
3 or 5 65-1/4 50-1/2 22 13-1/2
GDNT-50L-100
3 or 5 73-1/2 58-1/2 22 13-1/2
Model Number
Dimensions in Inches
E F G H
GDNL-40L-100
30 43-7/8 15 45
GDNT-50L-100
30 52-1/4 15 53