Takagi T-H3M-OS Outdoor Tankless Water Heater, Natural Gas, 120KBTU


Brand: Takagi

Mfr Part#: T-H3M-OS-NG

Usually ships: within 5-7 business days
Qty Price
$728.95 / each & Free Shipping
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Takagi T-H3M-OS-NG model is a high-efficiency condensing outdoor natural gas tankless water heater, intended for small residential applications.


  • Ultra-Low NOx;
  • Energy Star qualified, high-efficiency condensing model;
  • Operates on a 1/2" gas line (with standard pressure);
  • No vent piping required;
  • Remote temperature controler included;
  • Built-in freeze protection;
  • Air-Fuel ratio (AFR) sensor;
  • Exhaust & Water temperature safety control;
  • Overhear cut-off fuse;
  • Complies with SCAQMD Rule 1146.2 (California & Texas);
  • Complies with Lead Free standards;
  • AHRI certified.

Technical Specifications:

  • Shower capacity at 70F (warm climates): 2.5 showers;
  • Shower capacity at 50F (cooler climates): 1.5 showers;
  • Fuel Type: Natural Gas;
  • Gas Connections: 1/2" NPT;
  • Gas Consumption Input: 15,000-120,000 BTU/H;
  • Inlet Gas Pressure: 4.0-10.5" in W.C.;
  • UEF: 0.91;
  • Energy Factor (EF): 0.93;
  • Hot/Cold Connections: 3/4" NPT;
  • Water Connection Locations: Bottom;
  • Max GPM: 6.6;
  • Dimensions (H x W x D): 22-7/8" x 13-7/8" x 10-13/16";
  • Weight: 52 lbs;
  • LEED Rating: 1.5;
  • Emissions: less than 14 ng/J;
  • Power Source: 120V/60Hz.


15-year limited warranty on heat exchanger in residential applications/5-year limited warranty on heat exchanger in commercial applications/5-year limited warranty on all parts
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