April 7 New, higher efficiency standards for a key group of heating appliances, including residential hot water heaters, pool heaters and direct heating equipment such as gas fireplaces, have been finalized by the U.S. Department of Energy (DOE).
The new standards will cut the energy use of large electric storage water heaters by 47% and of large gas-fired water heaters by more than 30%, says DOE.
The standards for water heaters will go into effect in 2015, while the standards for pool heaters and direct heating equipmentincluding gas-fired wall, floor, and hearth heaterswill apply to products manufactured in 2013 and beyond.
On average, these products account for about 18% of the energy use in U.S. homes, DOE says.
The new standards will save consumers up to $10 billion and prevent up to 164 million metric tons of carbon dioxide emissions over the 30 years after they take effect, according to DOE.