Takagi T-H3S-OS-N Outdoor Tankless Water Heater, Natural Gas, 180KBTU
Brand: Takagi
Part#: T-H3S-OS-N
Takagi T-H3S-OS outdoor series tankless water heaters are a popular choice among medium size on-demand condensing (high efficiency) gas tankless water heaters due to their reliability, efficiency and affordable price.

Cross-References:
  • Rinnai: RU180e (SE+)
  • Noritz: NRC98OD (Condensing)
  • State: GTS-340-NEH
  • American: GT-340-NEH

Features:
  • Fully modulating, high-efficiency condensing design with commercial copper primary and 316L secondary heat exchangers, 0.94 UEF
  • Remote temperature controller included (operates at up to 400ft distance from unit)
  • Up to 8 GPM max flow rate
  • Built-in safety features include freeze protection, air-fuel ratio sensor, exhaust & water temperature control, overheat cut-off fuse
  • Outdoor model - no vent pipes needed
  • Electronic ignition - no pilot light
  • Wall-mounting design with integrated brackets
  • AHRI certified, Low-Lead compliant, Low NOx (SCAQMD Rule 1146.2 - California & Texas, NG models only)

Technical Specifications:
  • Shower Capacity: 3 - 2 Showers (4.5 GPM @ 75°F rise; 5.7 GPM @ 60°F rise; 8 GPM @ 43°F rise)
  • Min Flow: 0.4 GPM
  • Gas Input (Min - Max): 15,000 - 180,000 BTU/h
  • Fuel Type: Natural Gas (5 - 10.5 WC pressure)
  • UEF: 0.94
  • Hot & Cold Water Connections: 3/4" NPT
  • Gas Connection: 3/4" NPT
  • Condensate Connection: 1/2" NPT
  • Installation Altitude: 0 - 2,000 (de-rate for higher elevations, up to 6,000ft max - see manual for details)
  • Power Supply: 120V, 60Hz (hardwired)
  • Consumption: 3.1W Stand-By, 78.2W Operation, 174W Freeze Protection
  • Dimensions: 17-3/4" Wide x 24-7/8" High x 11-1/4" Deep
  • Weight: 60 lbs
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