NTI TRX150 BoilerHigh-Efficiency NTI TRX120 Gas Boiler 120,000 BTU/HR
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+ Turnkey installation *
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Technical Characteristics of NTI TRX120 Boiler
- Boiler Type
- Heat Only
- Space Heating Minimum / Maximum Input (Btu/Hr)
- 13,200 / 120,000
- Domestic Hot Water Minimum / Maximum Input (Btu/Hr)
- 13,200 / 120,000
- DOE AFUE (%)
- 95
- Power Source
- Gas
- Fuel Type
- natural or propane gas
- Heating capacity
- 111
- Net AHRI Rating
- 97
- Installation type
- Indoor, Wall Hung, Fully Condensing
- Weight (lbs.)
- 88.6
- Gas connection
- 3/4” Male NPT
- CH connections
- 1” Male Sweat with Adapter
- Flue
- Category IV, Sealed Combustion Direct Vent, Power Vent
- Minimum – Maximum Exhaust Vent Run
- 2” (6 – 100 feet), 3” (6 – 150 feet)
- Minimum – Maximum Intake Air Pipe Run
- 2” (0 – 100 feet), 3” (0 – 150 feet)
- Shipping Weight (lbs)
- 84
- Power Supply
- 120V, 60 Hz, less than 12A
- Application
- Residential
- Features
- Wi-Fi
- Modulating Combustion up to
- 11:1

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NTI TRX120 Boiler Manual
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Boiler NTI TRX120 Reviews
- Daniel Mac February 19, 2024
(0 reply) - Dylan Cooper November 5, 2023
(0 reply)
4 of 2 ReviewsMy sleek boiler fits snugly into my space, providing warmth without cluttering the room.
The NTI boiler control system is a godsend for those who don’t like to mess around with settings. Everything is intuitive and the result has exceeded expectations.