Specification Sheet

ManualsBrandsTakagi ManualsResidential Tankless Water HeaterTakagi 6.6 GPM Residential Natural Gas Tankless Water Heater with 120,000 Maximum BTU Input

Page 1 of 4

TRGSS01713

Residential Gas

Tankless Water Heaters

INDOOR MODEL

T-H3M-IN

OUTDOOR MODEL

T-H3M-OS

FEATURES:

ULTRA-LOW NOX

CONDENSING TECHNOLOGY

PROVIDES 0.93

ENERGY FACTOR (EF)

COMPLIES WITH CALIFORNIA

SCAQMD RULE 1146.2

AND OTHER AIR QUALITY

MANAGEMENT DISTRICTS

WITH SIMILAR NOX EMISSION

REQUIREMENTS OF 14 NG/J

OR 20 PPM

OPERATES ON 1/2” GAS

LINE WITH STANDARD GAS

PRESSURE

DURABLE HEAT EXCHANGER

• Copper Primary Heat Exchanger

• Secondary Heat Exchanger is made of Marine

Grade Type 316L Stainless Steel to protect

against corrosion

CONTINUOUS MAXIMUM FLOW

RATES UP TO 6.6 GPM

ENERGY STAR

QUALIFIED

AVAILABLE IN NATURAL GAS OR

PROPANE (LP)

GT-140-NIH & GT-140-NEH CAN BE

USED IN RESIDENTIAL HOT WATER

AND HEATING APPLICATIONS

(CHECK LOCAL CODES)

ELECTRONIC IGNITION -

NO PILOT LIGHT

INDOOR MODEL - INCLUDES

A BUILT-IN TEMPERATURE

CONTROLLER AND ADVANCED

DIAGNOSTICS TO SIMPLIFY

TROUBLESHOOTING

OUTDOOR MODEL - INCLUDES

A WALL MOUNT TEMPERATURE

REMOTE CONTROLLER AND

ADVANCED DIAGNOSTICS TO

SIMPLIFY TROUBLESHOOTING

FACTORY-INSTALLED POWER

CORD INCLUDED FOR

INDOOR MODELS

COMPLIES WITH LEAD FREE

STANDARDS

SAFETY FEATURES:

• Air-Fuel Ratio (AFR) Sensor

• Exhaust & Water Temperature Safety

Control

• Overheat Cut-Off Fuse

INTERNAL FREEZE

PROTECTION SYSTEM

POWER DIRECT VENT DESIGN

• Exhaust, 3” PVC Venting up to 70 feet or

4” PVC Venting up to 100 feet

• Provides ﬂexible venting with PVC, CPVC,

or ABS Pipe for Intake and Exhaust (solid

core only).

• Category IV Stainless Steel venting can

also be used

ACCESSORIES

• Pipe Cover

• Neutralizer Kit

• Isolation Valve Kits

• Concentric Termination

• Recess Box

WARRANTY

• 15-year limited warranty on heat

exchanger in residential applications

• 6-year limited warranty on heat

exchanger in commercial applications

• 5-year limited warranty on all parts

ANSI Z21.10.3 CSA 4.3

Tankless Condensing High Efﬁciency

Summary of content (4 pages)

PAGE 1
Residential Gas Tankless Water Heaters Tankless Condensing High Efficiency FEATURES: ULTRA-LOW NOX CONDENSING TECHNOLOGY PROVIDES 0.93 ENERGY FACTOR (EF) COMPLIES WITH CALIFORNIA SCAQMD RULE 1146.
PAGE 2
GAS CONSUMPTION INPUT MODEL NUMBER TYPE* INLET GAS PRESSURE** DIMENSIONS IN INCHES ENERGY UNIT MAXIMUM HOT/COLD GAS FACTOR WEIGHT GPM*** CONNECTIONS CONNECTION MINIMUM MAXIMUM MINIMUM MAXIMUM (EF) (LBS) HEIGHT WIDTH DEPTH BTU/H BTU/H IN. W.C. IN. W.C. Indoor Models T-H3M-IN-N Natural 15,000 120,000 4.0 10.5 0.93 6.6 3/4” NPT 1/2” NPT 22-7/8 13-7/8 10-13/16 44 T-H3M-IN-P Propane 15,000 120,000 8.0 14.0 0.93 6.
PAGE 3
Residential Gas Tankless Water Heaters INDOOR MODEL INDOOR MODEL Front view Side view 13-7/8" (352mm) 10" (254mm) 6-1/4" (158.5mm) 4" (102mm) 4" (102mm) 2-9/16" (64.8mm) 2-3/4" (70.2mm) 10-13/16" (274.6mm) 10-5/16" (262.2mm) 6" (152.1mm) 1" (25.5mm) Condensate drain port 3-1/4" (82.1mm) Gas 4-1/8" (105.4mm) Hot 6-1/2" (164.6mm) Cold 7" (178.5mm) 120VAC 7-3/4" (196.5mm) Gas 4/1/2" (113.7mm) Top view Bo om view OUTDOOR MODEL OUTDOOR MODEL 6" (152.
PAGE 4
Residential Gas Tankless Water Heaters Flow Rate vs. Temperature Rise 8 Flow Rate (gpm) 7 6 5 4 3 2 1 0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 Temperature Rise (°F) © October 2016 Takagi | Takagi.