• Takagi Condensing Outdoor Tankless Water Heater - Liquid Propane - T-H3J-OS-P

    - 160000 Btu - Energy Factor 0.95

    Product ID • TH3JOSP00000

    Non-Stock Item - Allow 5-15 Business Days to Ship

  • $869.75
  • Quantity:
  • Free Ground Shipping


The Takagi T-H3J-OS-P is a high efficient, condensing tankless water heater perfect for residential applications. With gas inputs of 160,000 BTU, the T-H3J-OS-P can produce enough hot water for two bathrooms in warmer climates or 1.5 baths in colder climates. The T-H3J-OS-P  includes a built-in temperature controller and advanced diagnostics to simplify troubleshooting. The Takagi T-H3J-OS-P primary heat exchanger is constructed of HRS35 commercial-grade copper which is more resilient against erosion. The secondary heat exchanger is made of Type 316L stainless steel.

The Takagi T-H3J is available for indoor and outdoor installation, the T-H3J 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.

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Technical Specs

Takagi Condensing Outdoor Tankless Water Heater T-H3J-OS-P Specs

  • Natural Gas Input
    Min. 15,000Btu - Max. 180,000Btu
  • LPG Input
    Min. 13,000Btu - Max. 180,000Btu
  • Gas Connection
    3/4 inch NPT
  • Water Connection
    3/4 inch NPT
  • Natural Gas Pressure Inlet
    Min. 5.0 W.C.
  • LP Gas Pressure Inlet
    Min. 8.0 W.C.
  • Ignition
    Electronic ignition
  • Electrical Supply
    AC 120C (60 Hz)
  • Water Pressure
    Min. 15 psi - Max. 150 psi
  • Natural Manifold Pressure
    2.0-2.5 W.C.
  • LP Manifold Pressure
    3.7-4.5 W.C.
  • Height
    22 1/2 Inches
  • Width
    17 3/4 Inches
  • Depth
    10 3/4 Inches
  • Weight
    58 lbs
  • Max Flow (GPM)
  • Fuel Type
  • Vent Type
    Direct Exhaust
  • Application
    2-3 Showers
  • Installation Type
    Indoor Only

Takagi Condensing Outdoor Tankless Water Heater T-H3J-OS-P Features

  • Maximum flow rate of 8.0 GPM at 35°F temperature rise (4.9 GPM at 70°F rise)
  • Energy Factor of 0.95 for NG and LPG
  • Primary heat exchanger utilizes HRS35 commercial-grade copper alloy for 25 times better heat transfer than stainless steel
  • Secondary heat exchanger utilizes 316L stainless steel for better corrosion resistance
  • ENERGY STAR® qualified
  • Complies with Ultra-Low NOx regulations of less than 14 ng/J (<20ppm)
  • Indoor model has integrated controls and power cord as standard features
  • Outdoor model includes remote control as standard feature
  • Venting with Schedule 40 PVC, CPVC, PP, Category III stainless steel
  • Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes

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