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Takagi T-K4-OS-NG Outdoor Natural Gas Tankless Water Heater

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Takagi T-K4-OS-NG Outdoor Natural Gas Tankless Water Heater

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T-K4-OS-NG Takagi Outdoor Natural Gas Tankless Water Heater

The compact T-K4 is a fully modulating, gas fired, tankless water heater perfect for residential applications. With gas inputs of 190,000 BTU, the T-K4 can produce enough hot water for up to three bathrooms in warmer climates.

The T-K4 supplies hot water to domestic hot water systems (directly or indirectly) which can be used with storage tanks, recirculation systems, hydronic heating systems, radiant floor systems, and/or domestic & heating applications.

  • ENERGY STAR qualified
  • 15-year limited heat exchanger, 5 yrs limited parts Residential use
  • Energy Factor of 0.82 for Natural Gas
  • Maximum flow rate of 8.0 GPM at 35°F temperature rise (4.4 GPM at 70°F rise)
  • Includes a remote control as a standard feature
  • Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes
Specifications :
  • Emissions : Low NOx
  • Maximum BTUs : 190,000
  • Minimum BTUs : 19,500
  • Water Connection Location : Bottom
  • Water Connection : 0.75"
  • Flow Rate : 8.00
  • Heat Exchanger : Copper
  • Voltage : AC 120V
  • Energy Factor : 0.82
  • ENERGY STAR Qualified : Yes
  • Remote Control : Yes
  • Technology : Non-Condensing
  • Multilink : No
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In Stock - Ships same day (M-F) if ordered by 2pm PST.
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T-K4-OS-NG Reviews
4.5 Based on 2 Reviews
100% of Customers Would Recommend this Product to a Friend

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Excellent performance would highly recomend
The product meets all required needs for residential use. The only thing in term of conservation is the time/travel, time of hot water to feel of touch. In drought stricken California any water waste isn't positively received. Otherwise its a great product.

Easy To Use
Quality Materials
Hot Water Travel A
Best Uses
Typical Residential Use
Recommend to a Friend? Yes
Submitted by jtmoney in Los Angeles, California on 2015-08-13
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my second takagi
with a recirculation loop or just a metlund product this is the peak of energy and water conservation

Energy Efficient
Works Quickly
Precise Controls
Best Uses
Large Homes
Recommend to a Friend? Yes
Submitted by P-A in Eureka, CA on 2012-10-10
Was this review helpful? Yes | No