Takagi
Takagi T-H3S-DV-N Indoor Tankless High Efficiency Condensing Water Heater (NG)
Takagi T-H3S-DV-N Indoor Tankless High Efficiency Condensing Water Heater (NG)
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Takagi T-H3S-DV-N Indoor Condensing Tankless Water Heater (Natural Gas)
The Takagi T-H3S-DV-N is a high-efficiency 180,000 BTU indoor tankless water heater designed for residential applications that demand performance, reliability, and compact installation. As part of Takagi’s H3 series, the T-H3S-DV-N delivers continuous hot water with lower energy consumption thanks to its advanced condensing technology.
This unit is ideal for small to mid-size homes or properties with moderate simultaneous hot water usage. Featuring a stainless steel secondary heat exchanger, ultra-low NOx compliance, and flexible direct-vent installation, it is one of the most popular mid-tier condensing tankless systems on the market.
✔ Key Features
- 180,000 BTU Natural Gas – Powerful output for up to 2–3 bathrooms depending on climate.
- Condensing Technology – Higher efficiency, lower gas consumption, and reduced utility costs.
- Stainless Steel Secondary Heat Exchanger – Corrosion-resistant and long-lasting.
- Indoor Direct-Vent Installation – Uses PVC, CPVC, polypropylene, or Category III stainless venting.
- Continuous Hot Water – Never run out, even with multiple fixtures in use.
- Ultra-Low NOx – Fully compliant with California emission standards.
- Compact Wall-Mount Design – Ideal for tight mechanical rooms or upgrades.
- Energy Star Certified – Meets modern efficiency requirements.
Specifications
| Model | T-H3S-DV-N |
| Fuel Type | Natural Gas |
| BTU Rating | 180,000 BTU |
| Installation Type | Indoor, Direct Vent |
| Condensing | Yes |
| Energy Factor | 0.95 UEF |
| Water Connection | 3/4" |
| Max Flow Rate | Up to ~8.0 GPM (depending on inlet temperature) |
| Dimensions | 22.50" H × 17.75" W × 10.75" D |
| Weight | ≈ 58 lbs |
| Emissions | Ultra-Low NOx |
What's Included
- Takagi T-H3S-DV-N Tankless Water Heater (Natural Gas)
- Installation & Operation Manual
- Mounting Hardware
- Warranty Documents
Recommended Add-Ons
- Isolation Valve Kit (Hot & Cold Service Valves)
- Condensate Neutralizer Kit
- 2" or 3" PVC/CPVC Venting Kit
- Water Filtration / Scale Prevention Kit
- Condensate Pump (if drain is not gravity-fed)
Why Choose the T-H3S-DV-N?
If you’re looking for a reliable, mid-size condensing tankless water heater, the T-H3S-DV-N is an excellent choice. It provides efficient, continuous hot water with quieter operation and a smaller footprint than standard tank heaters. Ideal for homes with moderate demand, remodels, and energy-saving upgrades.
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