Standards of Performance for New Residential Wood Heaters, New Residential Hydronic Heaters and Forced-Air Furnaces

In this action, the EPA proposes to amend the 2015 New Source Performance Standards (NSPS) for new residential hydronic heaters and new forced-air furnaces by adding a two-year ``sell-through'' period for all affected new hydronic heaters and forced-air furnaces that are manufactured or imported before the May 2020 compliance date to be sold at retail through May 2022. This will allow retailers additional time, after the May 2020 effective date of the ``Step 2'' standards, for the sale of ``Step 1'' compliant hydronic heaters and forced-air furnaces remaining in inventory. The EPA is also taking comment on whether a sell-through period for all affected new residential wood heaters is appropriate following the May 2020 compliance date and, if so, how long a sell-through period is needed and why. In addition, this action is taking comment on whether the current minimum pellet fuel requirements should be retained and, if so, whether they should be revised.