T-H3S-DV-N Indoor Tankless High Efficiency Condensing Water Heater (NG) Zoom

T-H3S-DV-N Indoor Tankless High Efficiency Condensing Water Heater (NG)


Brand: Takagi

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/ each
In Stock! Ships in 24-48 Hours
(3 Available)


Energy Factor: 0.95
Product Type: Tankless Heater
Inlet Gas Pressure: 5.0-10.5"W.C.
Max Flow (GPM): 6.6
BTU (Max): 180000
BTU (Min): 15000
Fuel Type: Natural Gas
Vent Type: Direct Vent
Type: Condensing
Application: 2-4 Showers
Installation Type: Indoor Only
Venting Requirement: PVC/CPVC
Energy Star Rated: Yes
Warranty: 12 Year Ltd. Warranty on Heat Exchanger/ 5 Year on Parts

Description for Takagi T-H3S-DV-N

Note: Isolation valves are not included but are recommended for installaltion.

The all new T-H3S-DV/OS is available in 2 models the T-H3S-DV (Indoor) and the T-H3S-OS (Outdoor) having a max GPM is 8.0. Also offers Ultra-Low Nox condensing technology which provides 0.95 energy factor. Try the new T-H3S-DV/OS and see why Takagi offers the highest efficient and durable commercial tankless heaters on the market.

The primary heat exchanger is constructed of HRS35 Commercial-Grade copper which is more resilient against erosion. In addition to the added durability, the T-H3S-DV/OS is ENERGY STAR® qualified. Indoor model includes a built-in temperature controller and diagnostics while the outdoor model includes a temperature remote controller.

  • Ultra-Low NOx Condensing Technology Provides
  • Significant Energy Cost Savings - Unprecedented 0.95 Energy Factor
  • ENERGY STAR® Qualified
  • Durable HRS35 Commercial-Grade Copper Primary Heat Exchanger
  • Type 316L Stainless Steel Secondary Heat Exchanger
  • Electronic Ignition - No Pilot Light
  • Indoor Model has Built-in Temperature Controller and Diagnostics
  • Outdoor Model has Temperature Controller and Diagnostics Included
  • Factory-Installed Power Cord Included for Indoor Models
  • Complies with Lead Free Standards
  • Suitable for Commercial Application (T-H3 Models)
  • Easy-Link up to 4 Units with no Additional Parts or Accessories Needed (T-H3 Models)
  • Multi-Link up to 20 Units (T-H3 models only)
  • Internal Freeze Protection System
  • Power Direct Vent Design Provides Flexible
  • Venting with PVC, CPVC or ABS

  • T-H3S-DV-N Indoor Tankless High Efficiency Condensing Water Heater (NG)


    by PowerReviews
    TakagiT-H3S-DV-N Indoor Tankless High Efficiency Condensing Water Heater (NG)

    (based on 2 reviews)

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    Reviewed by 2 customers

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    Finally we own a tankless water heater

    By kaptan krunch

    from northern michigan

    Verified Buyer



        Best Uses

          Comments about T-H3S-DV-N Indoor Tankless High Efficiency Condensing Water Heater (NG):

          I really like the fact I have all the hot water we need and more floor space and more room in our utility room. Our Takagi tankless water heater appears very well built. Thanks Pex Supply!

          • Was this a gift?:
          • No


          By Dan

          from Minnesota

          Verified Reviewer



              Best Uses

                Comments about T-H3S-DV-N Indoor Tankless High Efficiency Condensing Water Heater (NG):

                I owned this unit now for about 8 months. I have been extremely happy with it in almost all aspects – here is the breakdown:

                - Quiet
                - Cheap (CHEAP) to operate
                - Delivers big results in a small unit
                - A slightly longer time to deliver hot water than a tank
                - Initial cost (you will need bypass valves)
                - Installation was more complex than a tank

                I know others with different brands of tankless heaters and NONE are as good as this unit. I recommend that you also consider buying the concentric exhaust/intake – it make the install lots easier. One word of caution, if you are installing yourself, make sure you do your homework on (gas) pipe fitting/size – this seems like a no-brainer but Im amazed at the people who gloss over it… it's not hard. You will need this to be located somewhere close to a drain (drains off a surprising amount of water) and somewhat close to your exhaust. Yes, you can use PVC - but I recommend the solid core PVC.

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                • No

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