State water heaters Logo
menu

Residential Water Heaters

close

Product Cross Reference

Product Registration

Product Support

Product Literature

Rebates

place

Where to Buy

Not sure which water heater you need?

Use the Product Selector Tool

Tankless Water Heater Condensing Indoor 120,000 BTU Natural

Tankless Water Heater Condensing Indoor 120,000 BTU Natural

Tankless Water Heater Condensing Indoor 120,000 BTU Natural

Model # GTS-140-NIH
  • bvseo_sdk, net_sdk, 3.2.0.0
  • CLOUD, getAggregateRating, 47ms
  • REVIEWS, PRODUCT
  • bvseo-msg: The resource to the URL or file is currently unavailable.;
close

, 02139

Search
Enter your city and state or zip code to find a local installer.
List My Company Here View All

Product Description

The 140 Series offers high efficiency Ultra-Low NOx condensing technology allowing for the use of 3” PVC venting and has 0” clearance to combustibles. Remote control included as a standard feature. Indoor models are certified up to 10,100 ft. altitude. Provides a variety of installation options: indoor, outdoor and direct vent. Complies with Ultra-Low NOx regulations and meets the energy efficiency requirements of ASHRAE 90.1b-1992.

The GTS-140-NIH tankless water heater uses up to 120,000 BTU/h of natural gas to deliver a max flow rate of 6.6 GPM. It utilizes condensing technology to achieve a Uniform Energy Factor of 0.90. This model meets Low NOx emission requirements, and comes with a 15-year limited warranty.

Where to Buy

Showing results for 02139
Enter your city and state or zip code below to find a local installer.


Find Hide Search
MacCormack Plumbing
Billerica, MA 01821
More Information
MacCormack Plumbing
Billerica, MA 01821-1029
More Information
All Clear Inc.
Somerville, MA 02143-1723
More Information
List My Company Here View All

Certifications

15

year

limited warranty

0.90

Uniform Energy Factor

CSA International Low Lead Content Certification in compliance with U.S. and Canadian safety standards on gas components
AHRI Air-Conditioning, Heating and Refrigeration Institute
CSA International Design Certification The CSA Blue Star indicates the product is certified to applicable U.S. standards for appliances using gas or other petroleum fuel
CSA International Certification in compliance with U.S. and Canadian for gas appliances and other liquid petroleum, LP, propane products
  • Emissions: Ultra-Low NOx
  • Maximum BTU/h: 120,000
  • UEF 0.90
  • Minimum BTU/h: 15,000
  • Limited Heat Exchanger Warranty: 15 Years
  • Limited Parts Warranty: 5 Years
  • Water Connection Location: Bottom
  • Water Connection Size: 3/4"
  • Heat Exchanger: Copper & Stainless
  • Voltage: 120
  • LEED Points: 1.5
  • Technology: Condensing
  • Height: 22 7/8"
  • Width: 13 7/8"
  • Depth: 10 13/16"
  • Product Weight: 44 lbs/20 kg
  • Shipping Weight: 53.9
  • Vent Type: Direct Vent
  • Vent Length: 70 feet at 3 diameter
    100 feet at 4 diameter
  • Vent Material: PVC, CPVC, PP, ABS, SS

Heat Exchanger

Durable copper primary heat exchanger heat transfers 25 times more readily through copper than stainless steel

Safety Features

Includes freeze, overheat, surge protection and troubleshooting diagnostic codes.

Space Savings

State tankless water heaters take up much less space that your conventional tank-style water heater. With no tank to steal valuable storage space, our wall-mount design allows for additional storage and flexibility.

Endless Hot Water

The comprehensive line of State tankless water heaters are an excellent whole-home water heating solution that supply endless hot water.


How long would you like to enjoy a shower?

Cambridge, Massachusetts 02139

Change Location or Advanced Settings
Number of minutes you can enjoy a shower before running out of hot water. Assumes a 2.2 GPM flow rate.

Need to view or change our assumptions? Access the advanced settings.
minutes

Single
Shower Length

Number of minutes you can enjoy a shower before running out of hot water. Assumes a 2.2 GPM flow rate.

Need to view or change our assumptions? Access the advanced settings.

Close
Number of back-to-back showers you can take without running out of hot water. Assumes a 2.2 GPM flow rate and an 8 minute shower length.

Need to view or change our assumptions? Access the advanced settings.
Showers

Back to
Back

Number of back-to-back showers you can take without running out of hot water. Assumes a 2.2 GPM flow rate and an 8 minute shower length.

Need to view or change our assumptions? Access the advanced settings.

Close
Number of showers you can take at the same time without running out of hot water.Assumes a 2.2 GPM flow rate and an 8 minute shower length.

Need to view or change our assumptions? Access the advanced settings.
Showers

 At the Same Time

Number of showers you can take at the same time without running out of hot water.Assumes a 2.2 GPM flow rate and an 8 minute shower length.

Need to view or change our assumptions? Access the advanced settings.

Close
Biggest tub this water heater will fill without running out of hot water. Assumes a 5.0 GPM flow rate, and a 67% fill level.

Need to view or change our assumptions? Access the advanced settings.
gallons

Maximum Tub Size

Biggest tub this water heater will fill without running out of hot water. Assumes a 5.0 GPM flow rate, and a 67% fill level.

Need to view or change our assumptions? Access the advanced settings.

Close
Number of minutes required to fill a 55 gallon tub. Assumes a 5.0 GPM flow rate and a 67% fill level.

Need to view or change our assumptions? Access the advanced settings.
minutes

Time to Fill Tub

Number of minutes required to fill a 55 gallon tub. Assumes a 5.0 GPM flow rate and a 67% fill level.

Need to view or change our assumptions? Access the advanced settings.

Close
The estimated annual cost to operate this water heater in Cambridge, Massachusetts.

Need to view or change our assumptions? Access the advanced settings.
$ Dollars

Estimated Energy Cost

The estimated annual cost to operate this water heater in Cambridge, Massachusetts.

Need to view or change our assumptions? Access the advanced settings.

Close

Many factors affect the actual performance of a water heater. This represents our closest approximation of your likely experience with this water heater in Cambridge, Massachusetts, but actual performance may vary depending on factors beyond our ability to control or estimate. To view or adjust our assumptions of the most common factors that impact this product’s performance in Cambridge, Massachusetts, please view the advanced settings. *Annual Estimated energy costs are estimated calculated from the energy efficiency of each water heater, your household’s estimated hot water usage & set temperature, the average groundwater temperature for your location, and residential energy prices for your location as reported by the Department of Energy and the Energy Information Administration.

Show More

expand_more

Show Less

expand_less

Find the Right Water Heater

Answer a few questions about how much hot water you need, and we'll show you personalized recommendations and direct you to a local contractor to help with your installation.

Product Features & Options

Heat Exchanger

Durable copper primary heat exchanger heat transfers 25 times more readily through copper than stainless steel

Safety Features

Includes freeze, overheat, surge protection and troubleshooting diagnostic codes.

Space Savings

State tankless water heaters take up much less space that your conventional tank-style water heater. With no tank to steal valuable storage space, our wall-mount design allows for additional storage and flexibility.

Endless Hot Water

The comprehensive line of State tankless water heaters are an excellent whole-home water heating solution that supply endless hot water.


Emissions: Ultra-Low NOx
Maximum BTU/h: 120,000
UEF 0.90
Minimum BTU/h: 15,000
Limited Heat Exchanger Warranty: 15 Years
Limited Parts Warranty: 5 Years
Water Connection Location: Bottom
Water Connection Size: 3/4"
Heat Exchanger: Copper & Stainless
Voltage: 120
LEED Points: 1.5
Technology: Condensing
Height: 22 7/8"
Width: 13 7/8"
Depth: 10 13/16"
Product Weight: 44 lbs/20 kg
Shipping Weight: 53.9
Vent Type: Direct Vent
Vent Length: 70 feet at 3 diameter
100 feet at 4 diameter
Vent Material: PVC, CPVC, PP, ABS, SS

Certifications

15

year

limited warranty

0.90

Uniform Energy Factor

CSA International Low Lead Content Certification in compliance with U.S. and Canadian safety standards on gas components
AHRI Air-Conditioning, Heating and Refrigeration Institute
CSA International Design Certification The CSA Blue Star indicates the product is certified to applicable U.S. standards for appliances using gas or other petroleum fuel
CSA International Certification in compliance with U.S. and Canadian for gas appliances and other liquid petroleum, LP, propane products
place

Where to Buy

A. O. Smith water heaters are available through your local plumbing professional.

Literature

Tech Docs Marketing
  • bvseo_sdk, net_sdk, 3.2.0.0
  • CLOUD, getReviews, 0ms
  • REVIEWS, PRODUCT
  • bvseo-msg: The resource to the URL or file is currently unavailable.;