• Noritz America Corp.
  • A.O. Smith
  • EnerWorks Inc.


  • Noritz America Corp. announced a total of 20 Energy Star-rated water heater models available through its partnership with the U.S. EPA.

  • A.O. Smith offers 19 models that have been recognized under the Energy Star program, with more currently in development.

  • EnerWorks is the first company to qualify as a solar water heating appliances under the new Energy Star residential water heater program.