Residential water heating represents the second largest consumption of energy in the home, right behind heating and cooling. For many years, there was no official ENERGY STAR program for water heaters. But, beginning on January 1st, 2009 the DOE released their final requirement and established the ENERGY STAR program for residential water heaters.

ENERGY STAR is a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy. Their goal for developing this program is to assist the residential water heater manufacturers in promoting high efficiency products that save money, use less energy, and deliver the same or better performance as comparable products.

ENERGY STAR models comply with most utility and state rebate programs. Consumers recognize the ENERGY STAR label as representing energy saving products that result in a “greener” home. When selecting the best type and model of water heater for your home, you also need to consider the fuel type or energy source, size and energy efficiency. These features can greatly affect your annual operation costs.



To provide your household with enough hot water and to maximize efficiency, you need a properly sized water heater.

Energy Efficiency 

To maximize your energy and cost savings, you want to know how energy efficient a water heater is before you purchase it.


Before you purchase a water heater, it’s also a good idea to estimate its annual operating costs and compare those costs with other less or more energy-efficient models.


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