ENERGY STAR® CERTIFICATION FOR RESIDENTIAL WATER HEATERS

The US EPA ENERGY STAR® Residential Water Heater Program was launched in 2009 covering several water heater types, including solar. SRCC became an EPA-Recognized Certification Body in 2013, and continues to be approved to provide certification for solar water heaters.

The EPA has released an updated specification with new requirements, Version 4.0, and is in the process of transitioning to it. The new version transitions from the Solar Energy Factor (SEF) to the new Solar Uniform Energy Factor (SUEF or Solar UEF). Click here for more on SUEF.

  • Through July 25, new ENERGY STAR certifications of solar water heaters can be awarded per Version 3.2 or Version 4.0.
  • As of July 26, all new ENERGY STAR certifications must comply with Version 4.0.
  • Existing ENERGY STAR certifications must transition to Version 4.0 by January 5, 2022.

The eligibility requirements for each version of the specification are listed below. In addition, the manufacturer must be a current ENERGY STAR partner.

VERSION 3.2VERSION 4.0
Certification: OG-300

Performance:
SEF > 1.8 for electric backup
SEF > 1.2 for gas backup

Warranty:
> 10 years for collector
> 6 years on sealed system
> 2 years on controls
> 1 year on piping & parts
Certification: OG-300

Performance:
SUEF > 3.0 for electric backup
SUEF > 1.8 for gas backup

Warranty:
> 10 years for collector
> 6 years on sealed system
> 2 years on controls
> 1 year on piping & parts

ENERGY STAR® certified products are listed in two places - on the EPA ENERGY STAR Certified Products List and the ICC-SRCC Listing Directory, providing recognition and proof of certification. Manufacturers receiving ENERGY STAR certification are eligible to use the well-known ENERGY STAR mark as established in the current ENERGY STAR Identity Guidelines. They are also subject to annual reporting requirements to continue their certification.

BENEFITS

logo
WIDESPREAD RECOGNITION
Many consumers know and trust the EPA ENERGY STAR® mark. Certified products are eligible to display the well-know mark. Plus, the product appears on the ENERGY STAR Certified Products List.
logo
REBATE PROGRAMS & FEDERAL CONTRACTS
Various incentive programs and federal contracts specify ENERGY STAR certified products.
logo
OG-300 COORDINATION
No additional testing is needed. If you have OG-300 certification and you meet the performance and warranty requirements, your product is eligible for certification.

 
To learn more about the ENERGY STAR® Residential Solar Water Heater listings, click on any of the links provided, or contact us.
Apply for ENERGY STAR® Certification