Ruud Heavy Duty Ultra Low NOx Gas Water Heater Achiever Series.

The new and improved line of RUUD Ultra Low NOx water heaters meets the industry’s highest environmental standards while providing more safety features and better reliability than ever. With a broad range of warranty options, you’ll enjoy years of worry-free hot water from RUUD.


  • Recovery Capacity: 72.8 gallons per hour*
  • FHR: 135 gallons for 75-gallon model and 150 gallons for 98-gallon model

Guardian™ System

  • Exclusive fuel shut-off device
  • Maintenance free – no filter to clean
  • Protective control system that disables the heater in the presence of flammable vapor accumulation

Integrated Burner Safety System

  • Bi-metal temperature sensor maintains safe burner operation

High Altitude Compliant

  • All models are certified for applications up to 10,000 feet above sea level


  • Integrated self diagnostic system control for easy installation and service
  • Eco-friendly burner, ultra low NOx design meets 14 ng/J NOx requirements
  • Premium grade anode rod provides long-lasting tank protection
  • Enhanced-flow brass drain valve
  • Temperature and pressure relief valve included
  • Low lead compliant
  • Cord-free design
  • Side water connections for space heating applications
  • Standard replacement parts

*Recovery Capacity is based upon a 90° F water temperature rise and calculated per ANSI Z21.10.3 standards