Product Overview

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TBGSS01212
15-150 PSI water pressure. 40 PSI or above recommended for maximum ow.
*Available in natural gas only.
**Current numbers based on factory testing; 0.5 GPM required for activation; 0.4 GPM required for continuous re after initial ignition.
***Suitable for commercial application.
Indoor models are certied from sea level to 10,100 ft. elevation. Outdoor models are certied from sea level to 6,000 ft. elevation.
INDOOR MODEL DIMENSIONS
CLEARANCES: TOP 12”, BOTTOM 12”, FRONT 4”, BACK .5”, SIDES 3”
OUTDOOR MODEL DIMENSIONS
CLEARANCES: TOP 36”, BOTTOM 12”, FRONT 24”, BACK .5”, SIDES 3”
Tankless Water Heaters
Residential / Commercial Gas
MODEL NUMBER* TYPE
GAS CONSUMPTION
INPUT
INLET GAS PRESSURE
ENERGY
FACTOR
(EF)
MAXIMUM
GPM**
HOT/COLD
CONNECTIONS
GAS
CONNECTION
DIMENSIONS IN INCHES
UNIT
WEIGHT
(LBS)
MINIMUM
BTU/H
MAXIMUM
BTU/H
MINIMUM
IN. W.C.
MAXIMUM
IN. W.C.
HEIGHT WIDTH DEPTH
INDOOR MODELS
T-KJrU-IN-N
Natural 15,000 140,000 5.0 10.5 0.82 6.6 3/4” NPT 3/4” NPT 20-1/4 13-3/4 9-1/2 33
T-K4U-IN-N
Natural 15,000 190,000 5.0 10.5 0.82 8 3/4” NPT 3/4” NPT 20-1/4 13-3/4 9-1/2 37
T-D2U-IN-N***
Natural 15,000 199,000 5.0 10.5 0.82 10 3/4” NPT 3/4” NPT 20-1/4 13-3/4 9-1/2 39
OUTDOOR MODELS
T-KJrU-OS-N
Natural 15,000 140,000 5.0 10.5 0.82 6.6 3/4” NPT 3/4” NPT 20-1/4 13-3/4 9-1/2 33
T-K4U-OS-N
Natural 15,000 190,000 5.0 10.5 0.82 8 3/4” NPT 3/4” NPT 20-1/4 13-3/4 9-1/2 37
T-D2U-OS-N***
Natural 15,000 199,000 5.0 10.5 0.82 10 3/4” NPT 3/4” NPT 20-1/4 13-3/4 9-1/2 39
2. Exterior view
110U Indoor (T-KJr2U-IN)
310U Indoor (T-K4U-IN)
510U Indoor (T-D2U-IN)
Side view
Front view
GAS 4-1/4" (109 mm
)
120 VAC 1-7/8" (49 mm)
COLD 4-7/8" (124 mm)
HOT 4-5/8" (119 mm)
120 VAC 1-1/2" (37 mm)
13-1/8" (334 mm)
4-3/8" (113 mm)
5-1/8" (130 mm)
GAS 1-1/2" (38 mm)
1" (26 mm)
4-3/8" (113 mm)
19-3/8" (493 mm)
120 VAC 3" (75 mm)
GAS 5-1/4" (135 mm)
HOT 6" (153 mm)
COLD 6" (153 mm)
9-1/2" (241 mm)
∅4 (101 mm)
120 VAC 1-5/8" (40 mm)
COLD 1-5/8" (41 mm)
GAS 5" (127 mm)
HOT 4-5/8" (116 mm)
20-1/4" (520mm)
13-3/4" (350 mm)
1-3/8" (36 mm)
1-7/8" (47 mm)
3-5/8" (94 mm)
10" (254 mm)
7" (180 mm)
COLD 5" (127 mm)
HOT 5" (127 mm)
2-1/4" (58 mm)
Boom view
Top view
Side viewFront view
GAS 4-1/4" (109 mm
)
120 VAC 1-7/8" (49 mm)
HOT 5" (127 mm)
COLD 4-7/8" (124 mm)
HOT 4-5/8" (119 mm)
120 VAC 1-1/2" (37 mm)
13-1/8" (334 mm)
GAS 1-1/2" (38 mm)
1" (26 mm)
19-3/8" (493 mm)
120 VAC 3" (75 mm)
GAS 5-1/4" (135 mm)
HOT 6" (153 mm)
COLD 6" (153 mm)
9-1/2" (241 mm)
120 VAC 1-5/8" (40 mm)
COLD 1-5/8" (41 mm)
GAS 5" (127 mm)
HOT 4-5/8" (116 mm)
13-3/4" (350 mm)
7" (203 mm)
1-5/8" (43 mm)
20-1/4" (520 mm)
1-7/8" (47 mm)
5" (128 mm)
3-5/8" (94 mm)
7" (180 mm)
10" (254 mm)
COLD 5" (127 mm)
Boom view
Top view