November 04, 2025
The D.C. Circuit on Tuesday upheld the U.S. Department of Energy's tighter energy efficiency standards for furnaces and water heaters, rejecting arguments from gas utility and industry groups that the rules unlawfully force an expensive switch to new appliances.
June 18, 2024
Several blue states and environmental and consumer groups have thrown their support behind the U.S. Department of Energy's tighter energy efficiency standards for furnaces and water heaters, telling the D.C. Circuit that challenges to the new rules are meritless.
June 11, 2024
The U.S. Department of Energy on Monday defended its tighter energy efficiency standards for furnaces and water heaters, telling the D.C. Circuit that arguments that the new regulations unlawfully force a costly switch to new appliances are meritless.
April 17, 2024
Eighteen states and several business associations are backing gas utility groups' challenge to the U.S. Department of Energy's tighter energy efficiency standards for furnaces and water heaters, telling the D.C. Circuit that the agency is unlawfully forcing a switch to new appliances.