Understanding water heating regulations
With today's everchanging political and regulatory landscape, it can be challenging to make sense of it all—and ensure you're working with the most up-to-date information available. That's where the Water Heating Regulatory Page comes in. As part of the Rheem® Family of Brands, we will keep this page current as things change so it will be your go-to resource for everything you need to know. We'll keep an eye on the regulations so you can stay focused on your business.
The next few years will bring a lot of change. Let's explore what's coming.
Learn MoreSome states are mandating a shift to ultra low NOx water heaters. What does that mean for you?
Learn MoreOver the next few years the Department of Energy's latest standards for residential water heaters, aimed at energy conservation, will go into effect. We will be ready. And with the information linked here, you'll be ready, too.
New Commercial Water Heating Efficiency Standards go into effect October 6, 2026. Residential-Duty Commercial Gas-Fired Storage Water Heaters are affected.
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Many areas already require new water heaters to be ultra low NOx (ULN). As more and more states and air quality management districts look at ways of lowering emissions, ULN water heaters will be one means of making a difference. We have many compliant options available now and will continue innovating in this space as the requirements change.
Several states require new water heaters be demand response-ready. This means utilities can seamlessly connect and adjust the water heater’s electricity usage to reduce carbon emissions and stress on the electric grid. We’ll keep you informed as more areas join this growing trend.
Demand Response Brochure
Demand Response Flyer
NOTE: 95% of Homeowners participating in a Demand Response Program are satisfied with the experience. The water heater’s efficient design allows tank water to remain hot even when not in use.