Essential Plus is a series of ultra low NOx non-condensing tankless gas water heaters designed for continuous hot water


  • .82 UEF 
  •  With all -copper heat exchanger


  • Exclusive! Water Savings Setting – upon activation, this setting can save homeowners up to 1,100 gallons of water per year by decreasing the flow of water through the pipes until the temperature reaches the heater’s set temperature
  • Industry Best! Low Flow Activation - Minimum flow rate of .26 GPM and minimum activation flow rate of .40 GPM ensures the user will receive hot water even in low demand situations
  • Recirculation Pump Kit-Ready – Providing faster hot water at the tap and savings of up to 12,000 gallons water/year

Easy Installation and Service

  • 1/2" Gas line compatibility on every model
  • Exclusive! Maintenance Notice Setting - Alerts homeowner, after 500 hours of use, to call for service check (optional)
  • 3"/5" concentric vent system with Integrated condensate collector
  • Connects to Metal Fab. Inc., 3"/5" concentric venting without an adapter


  • EcoNet Enabled - all Tankless products from 2010 to present can connect to EcoNet mobile app via Tankless EcoNet Accessory Kit (REWRA630TWH)
  • For higher demand applications, accessories available to link multiple units in a load-sharing system

High Altitude Compliant

  • High-altitude capability – up to 8,400 ft. elevation above sea level

Low Emissions

  • Environmentally Friendly ultra low NOx burner meets SCAQMD rule 1146.2 requirements


  • Exclusive! Guardian OFW™overheat film wrap - prevents dangerous temperatures and provides industry best side-to-side clearance of 1/2 inch
  • Exclusive! Hot Start Programming - Minimizes cold water bursts by staying in ready-fire state for back-to-back hot water needs


  • Digital remote control and 10 ft. of thermostat wire included
  • Requires 120V power supply  (indoor models only)
  • Industry Best! Freeze protection to -30°F
  • Maximum water temperature is 140°F. For higher temperature applications, upgrade kits are available


  • .82 UEF 
  • Digital display shows temperature setting and maintenance codes
  • Intelligent electronic controls designed to increase energy efficiency and safety

Energy Guide Details


Eco FriendlyLEED Points = 2NSFAIANatural GasPropane GasCanada CSAUS CSA (Star)AHRINatural GasCanada CSAPropane GasLEED Points = 2US CSA (Star)Eco FriendlyAHRIAIA


Encore Mid-efficiency 95 Direct Vent Indoor

Encore Mid-Efficiency 95 Direct Vent Indoor


Heat Exchanger - 12 Years limited

Parts - 5 Years limited

Labor - 1 Year