Takagi T-H3J-DV-N Takagi Natural Gas Tankless Water Heater, Condensing, Indoor, 160,000 BTU, Ultra-Low NOx, 3/4-inch NPT Connection - T-H3J-DV-N
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Takagi Natural Gas Tankless Water Heater, Condensing, Indoor, 160,000 BTU, Ultra-Low NOx, 3/4-inch NPT Connection - T-H3J-DV-N

SKU: 285234
$ 1,017.91 / ea
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About the Takagi Natural Gas Tankless Water Heater, Condensing, Indoor, 160,000 BTU, Ultra-Low NOx, 3/4-inch NPT Connection - T-H3J-DV-N

Enjoy hot water with less hassle!


The Takagi T-H3J-DV-N tankless water heater is suitable for domestic applications. This water heater is equipped with a primary heat exchanger made of commercial-grade copper alloy and a secondary heat exchanger constructed of 316L stainless steel. With these durable heat exchangers, this condensing tankless water heater guarantees longevity and optimal performance. It also comes with integrated temperature control and advanced diagnostics to simplify troubleshooting, providing added convenience.


The T-H3J-DV-N natural gas-powered tankless water heater utilizes a minimum of 15,000 BTU/H and a maximum of 160,000 BTU/H. Enjoy an ample supply of hot water with a maximum flow rate of 6.6 GPM, ensuring that your needs are met according to your satisfaction. Moreover, it is Energy Star qualified, with a minimum 0.93 energy factor, ensuring efficient operation. As a result, it reduces energy consumption, enabling you to save on utility costs and minimize the environmental impact.


Safety features of this direct-vent tankless water heater include an air-fuel ratio (AFR) sensor, exhaust and water temperature safety control, and an overheat cut-off fuse. Unlike other on-demand water heaters, Takagi created the T-H3J-DV-N to function in high-altitude circumstances and is certified up to 10,100 feet. With measurements of 17-3/4-inch (W), 23-5/8-inch (H), and 11-1/4-inch (D), this indoor tankless water heater ensures a suitable fit into your designated space. It has a 3/4-inch NPT connection, enabling seamless integration into your plumbing system.


Takagi is known for its high-quality water heaters. They offer comprehensive warranty coverage, including a 15-year limited warranty on the heat exchanger in residential applications, a 5-year limited warranty in commercial applications, and a 5-year limited warranty on all parts. So don’t miss your chance to upgrade your home with this T-H3J-DV-N condensing tankless water heater.


For proper maintenance, it is recommended to descale your water heaters at least once a year. You can visit our How to Flush a Tankless Water Heater FAQ to learn more about this matter. Are Tankless Water Heaters Worth It? Feel free to read through this link: Are Tankless Water Heaters Worth It? You can also browse these tankless water heaters and find one that best suits your specifications.

Manufacturer: Takagi
Product: Water Heater
Modus Operandi: Natural Gas
Capacity: On Demand
Water Heater Type: Tankless
Type: Condensing
Electrical Voltage: 120 VAC
Energy Factor (EF): 0.94 UEF
Flow Rate: 6.6 GPM
BTU Rate: 160,000 BTU
Shape: Rectangle
Height: 23-5/8"
Width: 17-3/4"
Depth: 11-1/4"
Pressure Rating: 150 PSI
Connection Size: 3/4"
Connection Type: NPT
Mount Type: Wall Mount
Installation Location: Indoor
Vent Size: 4"
Vent Type: Direct Vent
Other Info: CSA Certified
  IAPMO Certified
  AHRI certified
Water Heater Features: Ultra-Low Nox
  Internal Freeze Protection
Mpn # T-H3J-DV-N
Shipping Dimensions 29.0" x 17.0" x 13.0"
Weight 58.00 lbs.
  • Why Choose A Tankless Water Heater? Tankless water heaters can save you money and, with proper care and maintenance, ensure an extended lifespan.
  • Energy-Efficient: This condensing tankless water heater is Energy Star qualified, meeting the strict energy efficiency guidelines set by the Environmental Protection Agency (EPA).
  • Safe and Reliable: It utilizes a minimum of 15,000 BTU/H and a maximum of 160,000 BTU/H, delivering a consistent and dependable hot water supply.
  • Suitability: It can support up to four heaters in a single system and enables a multi-link configuration of up to 20 heaters, making it adaptable to diverse residential and commercial settings.
  • Ease of Use: It has an integrated temperature controller and advanced diagnostics to simplify troubleshooting, enabling a user-friendly operation.
  • Reliability: Natural gas-powered water heaters provide consistent performance and are less affected by power outages, making them a reliable choice for your hot water needs.
  • Assurance: It comes with a 15-year limited warranty on the heat exchanger in residential applications, a 5-year limited warranty in commercial applications, and a 5-year limited warranty on all parts, guaranteeing long-term protection against any manufacturing defects.
  • Longevity: With proper maintenance, you can extend your water heater’s lifespan. One effective way to do this is to descale your water heaters at least once a year. This procedure removes mineral deposits and prevents clogs, maintaining the water heater’s efficiency.
  • Authentic: Manufactured by Takagi, it ensures lasting value for your purchase.

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