Thursday, April 2, 2015
Beginning April 16 there will be significant changes to water heater energy factor (EF) requirements as a result of updates to the National Appliance Energy Conservation Act. The U.S. Department of Energy (DOE) published a final rule for amended standards for residential water heaters on April 16, 2010, which become effective April 16, 2015. The 2015 DOE energy efficiency mandates will require higher EF ratings on virtually all residential gas, electric, and oil-fired water heaters.