The U.S. EPA has announced it is taking two separate actions that aim to amend its new source performance standards (NSPS) for residential wood heaters issued in 2015. A proposed rule would provide retailers additional time to sell existing inventories of hydronic heaters and forced air furnaces, while an advance notice of proposed rulemaking (ANPR) seems comments on several aspects of the 2015 NSPS. The agency announced both actions on Nov. 21.
The 2015 NSPS for new residential wood heaters updated standards enacted in 1988 to reflect advancements in wood heater technologies and design. It also broadened the range of residential wood-heating applications covered by the regulation.
The 2015 rule requires manufacturers to redesign wood heaters to be cleaner and lower emitting. These improvements also make the heaters perform better and increase efficiency. The action applied to adjustable burn rate wood heaters, pellet stoves, single burn rate wood heaters, outdoor hydronic heaters, indoor hydronic heaters, wood-fired forced air furnaces, and masonry heaters.