Takagi TK-340X3-NEH Takagi TK-340X3-NEH Natural Gas Tankless Water Heater w/ X3 Scale Prevention, Outdoor, 8 GPM

Takagi TK-340X3-NEH Natural Gas Tankless Water Heater w/ X3 Scale Prevention, Outdoor, 8 GPM

SKU: 913376
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About the Takagi TK-340X3-NEH

Running out of hot water would never be a problem with the Takagi TK-340X3-NEH tankless water heater. This Takagi tankless water heater brings you the appropriate size for installation on an exterior wall with direct venting to the outdoors. It is an Energy Star Rated product that guarantees greater energy efficiency and reduces electricity expenses, which means more money in your pocket!

The Takagi TK-340X3-NEH features the X3 Scale Prevention Technology, which minimizes scale buildup in this tankless unit. Thus, reducing the need for routine descaling maintenance, increasing the projected lifetime of the unit, and allowing it to perform and operate like its new! The heat exchanger is constructed of commercial-grade copper, which is more efficient at heat transfer when compared to stainless steel. It features an uninterrupted maximum flow rate of up to 8 GPM, which enables hot water distribution for up to two units in warmer conditions and one unit in cooler settings. The copper heat exchanger also includes a 316-grade stainless steel backing that protects it from corrosion. Even with little space, this condensing water heater is ideal for household and outdoor applications. Takagi guarantees that you will enjoy every drop of your hot water when using this water heater.

It features a 3/4" NPT connection and can burn natural gas at a minimum of 15,000 BTU/H and a maximum of 180,000 BTU/H. When it comes to storage tanks, recirculating systems, and other issues, this water heater is the way to go. You will undoubtedly enjoy your never-ending stream of hot water.

The Takagi TK-340X3-NEH comes with a 15-year limited heat exchanger warranty, a 5-year limited parts warranty for residential usage, and a 1-year limited heat exchanger and parts warranty. Finally, it includes safety features such as freeze, overheat, surge protection, and troubleshooting diagnostic codes. As a result, you may now enjoy a constant supply of hot water without risking your family's safety. Takagi has been offering energy-efficient, ecologically friendly, and high-quality tankless water heaters for a more innovative lifestyle for over 60 years. And now, you can find them here on Plumbersstock. So, what are you waiting for? Get your own tankless heater now!

You may also want to check out our other products like tank water heaters and water heater parts and accessories.

Manufacturer: Takagi
Product: Water Heater
Water Heater Type: Tankless
Modus Operandi: Natural Gas
Vent Type: Direct Vent
Vent Size: 3" or 4"
Energy Star Rated: Yes
Connection Type: NPT
Connection Size: 3/4"
Flow Rate: 8 GPM
BTU Rate: 180,000 BTU
Voltage: 120
Height: 23.63"
Width: 17.75"
Depth: 11.25"
Mpn # TK-340X3-NEH
Shipping Dimensions 22.0" x 17.0" x 37.0"
Weight 71.00 lbs.
Shipping Dimensional Weight 78.46 lbs.
  • X3 SCALE PREVENTION TECHNOLOGY: This water heater is one of the first tankless products that maintains like-new performance without requiring any scale-related maintenance. It is also approved to work with an external recirculation pump and cross-over valve
  • ENERGY STAR QUALIFIED: Because this tankless water heater only activates when hot water is being used, no standby energy losses are made, providing efficient heating while conserving energy
  • DURABLE HEAT EXCHANGER: Built with a commercial-grade copper alloy and utilizing stainless steel and drums that are 25% thicker, this tank maintains a fine grain, high strength, and a lesser strain in extreme environments such as heat, acidic condensation, and chloride
  • COMPACT SIZE: This water heater takes up much less space than your conventional tank-type water heater. Its wall-mount design offers flexible installations, freeing up valuable storage space
  • POWER DIRECT VENT DESIGN: Provides flexible venting with PVC, CPVC, polypropylene, or ABS Pipe for intake and exhaust. Category III or IV venting can also be used
  • "PEACE OF MIND" LIMITED WARRANTY: No Exclusions For Hard Water and Scale-Related Failures are Covered
  • SAFETY FEATURES: Includes freeze, overheat, surge protection, and troubleshooting diagnostic codes
  • WATER PRESSURE: 15-150 PSI Water Pressure and 40 PSI or Above for Maximum Flow


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