Tankless with X3 Technology


Condensing Tankless with X3® Technology

Top Service Items     •    Additional Resources

Introducing our full line of residential condensing gas tankless water heaters with X3® Scale Prevention Technology. Designed with both consumers and contractors in mind, X3® Technology prevents scale buildup in a tankless unit, eliminating the need for descaling maintenance, tripling the lifetime of a unit and enabling it to run at like-new performance.


  • Features and Benefits
  • How It Works
  • Application and Installation



Top Service Items
  • Cartridge Installation
  • Error 111 Ignition Failure
  • Error 121 Loss of Flame
  • Error 991 Imperfect Combustion

Back to Top


Additional Resources

Back to Top