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Showing 1-15 of 2,211
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Adapt®+ Premium Condensing Ultra-Low NOx 199,000 BTU Natural Gas Tankless Water Heater with X3® Scale Prevention Technology
Energy Star
Adapt®+ Premium Condensing Ultra-Low NOx 199,000 BTU Natural Gas Tankless Water Heater with X3® Scale Prevention Technology Model ATHR-199X3 100
  • ENERGY STAR® certified (0.95 UEF)
  • 199,000 BTU input
  • 15-Year Warranty
View Model
Adapt®+ Premium Condensing Ultra-Low NOx 180,000 BTU Natural Gas Tankless Water Heater with X3® Scale Prevention Technology
Energy Star
Adapt®+ Premium Condensing Ultra-Low NOx 180,000 BTU Natural Gas Tankless Water Heater with X3® Scale Prevention Technology Model ATHR-180X3 100
  • ENERGY STAR® certified (0.95 UEF)
  • 180,000 BTU input
  • 15-Year Warranty
View Model
Adapt®+ Premium Condensing Ultra-Low NOx 160,000 BTU Natural Gas Tankless Water Heater with X3® Scale Prevention Technology
Energy Star
Adapt®+ Premium Condensing Ultra-Low NOx 160,000 BTU Natural Gas Tankless Water Heater with X3® Scale Prevention Technology Model ATHR-160X3 100
  • ENERGY STAR® certified (0.95 UEF)
  • 160,000 BTU input
  • 15-Year Warranty
View Model
Adapt®+ Premium Condensing Ultra-Low NOx 199,000 BTU Natural Gas Tankless Water Heater
Energy Star
Adapt®+ Premium Condensing Ultra-Low NOx 199,000 BTU Natural Gas Tankless Water Heater Model ATHR-199M 100
  • ENERGY STAR® certified (0.95 UEF)
  • 199,000 BTU input
  • 15-Year Warranty
View Model
Adapt®+ Premium Condensing Ultra-Low NOx 180,000 BTU Natural Gas Tankless Water Heater
Energy Star
Adapt®+ Premium Condensing Ultra-Low NOx 180,000 BTU Natural Gas Tankless Water Heater Model ATHR-180M 100
  • ENERGY STAR® certified (0.95 UEF)
  • 180,000 BTU input
  • 15-Year Warranty
View Model
Adapt®+ Premium Condensing Ultra-Low NOx 160,000 BTU Natural Gas Tankless Water Heater
Energy Star
Adapt®+ Premium Condensing Ultra-Low NOx 160,000 BTU Natural Gas Tankless Water Heater Model ATHR-160M 100
  • ENERGY STAR® certified (0.95 UEF)
  • 160,000 BTU input
  • 15-Year Warranty
View Model
Adapt® SC Standard Condensing Ultra-Low NOx 199,000 BTU Natural Gas Tankless Water Heater with X3® Scale Prevention Technology
Energy Star
Adapt® SC Standard Condensing Ultra-Low NOx 199,000 BTU Natural Gas Tankless Water Heater with X3® Scale Prevention Technology Model ATM-199X3-N 100
  • ENERGY STAR® certified with a UEF of 0.95
  • 199,000 BTU input
  • 15-year limited warranty
View Model
Adapt® SC Standard Condensing Ultra-Low NOx 180,000 BTU Natural Gas Tankless Water Heater with X3® Scale Prevention Technology
Energy Star
Adapt® SC Standard Condensing Ultra-Low NOx 180,000 BTU Natural Gas Tankless Water Heater with X3® Scale Prevention Technology Model ATM-180X3-N 100
  • ENERGY STAR® certified with a UEF of 0.95
  • 180,000 BTU input
  • 15-year limited warranty
View Model
Adapt® SC Standard Condensing Ultra-Low NOx 160,000 BTU Natural Gas Tankless Water Heater with X3® Scale Prevention Technology
Energy Star
Adapt® SC Standard Condensing Ultra-Low NOx 160,000 BTU Natural Gas Tankless Water Heater with X3® Scale Prevention Technology Model ATM-160X3-N 100
  • ENERGY STAR® certified with a UEF of 0.95
  • 160,000 BTU input
  • 15-year limited warranty
View Model
Adapt® SC Standard Condensing Ultra-Low NOx 199,000 BTU Natural Gas Tankless Water Heater
Energy Star
Adapt® SC Standard Condensing Ultra-Low NOx 199,000 BTU Natural Gas Tankless Water Heater Model ATM-199M-N 100
  • ENERGY STAR® certified with a UEF of 0.95
  • 199,000 BTU input
  • 15-year limited warranty
View Model
Adapt® SC Standard Condensing Ultra-Low NOx 180,000 BTU Natural Gas Tankless Water Heater
Energy Star
Adapt® SC Standard Condensing Ultra-Low NOx 180,000 BTU Natural Gas Tankless Water Heater Model ATM-180M-N 100
  • ENERGY STAR® certified with a UEF of 0.95
  • 180,000 BTU input
  • 15-year limited warranty
View Model
Adapt® SC Standard Condensing Ultra-Low NOx 160,000 BTU Natural Gas Tankless Water Heater
Energy Star
Adapt® SC Standard Condensing Ultra-Low NOx 160,000 BTU Natural Gas Tankless Water Heater Model ATM-160M-N 100
  • ENERGY STAR® certified with a UEF of 0.95
  • 160,000 BTU input
  • 15-year limited warranty
View Model
Adapt® SC Standard Condensing Ultra-Low NOx 199,000 BTU Liquid Propane Tankless Water Heater with X3® Scale Prevention Technology
Energy Star
Adapt® SC Standard Condensing Ultra-Low NOx 199,000 BTU Liquid Propane Tankless Water Heater with X3® Scale Prevention Technology Model ATM-199X3-P 111
  • ENERGY STAR® certified with a UEF of 0.95
  • 199,000 BTU input
  • 15-year limited warranty
View Model
Adapt® SC Standard Condensing Ultra-Low NOx 180,000 BTU Liquid Propane Tankless Water Heater with X3® Scale Prevention Technology
Energy Star
Adapt® SC Standard Condensing Ultra-Low NOx 180,000 BTU Liquid Propane Tankless Water Heater with X3® Scale Prevention Technology Model ATM-180X3-P 111
  • ENERGY STAR® certified with a UEF of 0.95
  • 180,000 BTU input
  • 15-year limited warranty
View Model
Adapt® SC Standard Condensing Ultra-Low NOx 160,000 BTU Liquid Propane Tankless Water Heater with X3® Scale Prevention Technology
Energy Star
Adapt® SC Standard Condensing Ultra-Low NOx 160,000 BTU Liquid Propane Tankless Water Heater with X3® Scale Prevention Technology Model ATM-160X3-P 111
  • ENERGY STAR® certified with a UEF of 0.95
  • 160,000 BTU input
  • 15-year limited warranty
View Model
Showing 1-15 of 2,211
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