GT-240-NIH - Condensing Ultra-Low NOx Indoor 160,000 BTU Natural Gas Tankless Water Heater

GT-240-NIH - Condensing Ultra-Low NOx Indoor 160,000 BTU Natural Gas Tankless Water Heater Where to Buy

The GT-240-NIH supplies hot water to domestic hot water systems (directly or indirectly) which can be used with storage tanks, re-circulation systems, hydronic heating systems, radiant floor systems, and/or domestic & heating applications.


  • 15-year limited Heat Exchanger Warranty, 5-year parts warranty, 1-year labor warranty for Residential applications
  • Copper Primary Heat Exchanger
  • Stainless Steel 316L Secondary Heat Exchanger
  • Complies with Ultra-Low NOx regulations of less than 14 ng/J (<20ppm)
  • Condensing Indoor model
  • Safety features include freeze, overheat, surge protection, and troubleshooting diagnostic codes

Tech Specs

  • Technology: Condensing
  • Fuel Source: Natural Gas
  • UEF: 0.94
  • Digital Display: Yes
  • Limited Heat Exchanger Warranty: 15
  • Limited Parts Warranty: 5
  • Max BTUs Input: 160,000
  • Emissions: Ultra-Low NOx
  • Water Connection Location: Bottom
  • Water Connection Size: 3/4

Dimensions

  • Height: 23 5/8"
  • Width: 17 3/4"
  • Depth: 11 1/4"
  • Weight: 58 lbs.
  • Vent Size: "