The U.S. Department of Energy (DOE) regulates minimum energy efficiency requirements for water heaters. The first set of regulations – known as the National Appliance Energy Conservation Act (NAECA) – were created in 1990 and later updated in 2004 to the current standards. A new update to the rules for increasing minimum energy efficiency standards was enacted in 2010 and goes into effect on April 16th, 2015. These design changes will require that most residential water heaters under 55 gallons of capacity produced after April 16, 2015, to be larger in size. Therefore, they will require more installation space in both single-family and multi-family housing. Most water heaters under 55 gallons will grow by approximately 2”in height and diameter. Units over 55 gallons will require even more drastic changes.
How NAECA affects YOU
- Homeowners have much to gain from the new efficiency regulations, as energy and money savings can be considerable with the new compliant products.
- In most cases, the new products will differ only slightly in size due to additional insulation (1-2 inches in diameter, and/or 1-2 inches in height), and therefor will easily replace the majority of existing products.
- However, in some rare cases a water heater may have to be moved to a new location if available space is inadequate. It is also possible that a different type of water heater may be required in order to meet the new EF guidelines.
- Hire a professional contractor. A professional will understand the new guidelines, will know all the product choices available, and will be able to make a recommendation that best meets your home and family’s needs.
Water heaters that are larger than 55 gallons will undergo the biggest changes. They may require more space or potentially switching models.
Contact Kings Heating & Air Conditioning for all your home and commercial HVAC needs. (425) 275-5153