Wood Heater Compliance Monitoring Program
April 5, 2021 -- EPA is committed to ensuring that new wood stoves and other wood burning devices comply with Clean Air Act standards to reduce health-harming pollution. In light of information from states and other stakeholders provided in late 2020 and early 2021, the agency is taking a number of actions to address concerns about the methods and manner in which new wood stoves are being tested for compliance with the 2015 New Source Performance Standards under the Clean Air Act.
These actions will take time and continued engagement with stakeholders. Given the concerns raised, EPA is carefully reviewing both current and new Certifications of Compliance and will take actions as appropriate. More info at EPA-Approved Test Labs and Third Party Certifiers for Residential Wood Heaters
Residential wood heaters, which include wood and pellet stoves, hydronic heaters and forced-air furnaces, can contribute significantly to particulate air pollution which may pose serious health concerns. In 2015, EPA strengthened the clean air standards for residential wood heaters to make heaters significantly cleaner and improve air quality in communities where people burn wood for heat.
Residential wood heaters must comply with the applicable emission standards and other requirements of the 2015 Rule in order to be EPA-certified. Manufacturers must participate in a certification program and have their wood heaters undergo certification testing at an EPA accredited laboratory to verify their heaters meet the required emission standards. Thereafter, manufacturers may obtain an EPA Certificate of Compliance for each of their wood heaters to enable the manufacturer to manufacture, offer for sale, advertise, or import a wood heater into the United States.
To help consumers buy EPA-certified wood heaters, check out the EPA Certified Wood Heater Database.
Wood Heater Certification Test Report Deficiency Letter Issuance Update
As part of the wood heater certification test report review process, EPA is working to address identified deficiencies, both major and minor. As of September 2, 2021, EPA has issued 44 minor deficiency letters and 8 major deficiency letters to wood heater manufacturers.
- Minor deficiency letters generally concern non-emissions related issues which may be addressed by the manufacturer submitting a revised certification test report. That submission is required to provide either clarifying or additional information to confirm the certification test was completed in accordance with the Wood Heater Rule and applicable test method. However, it is important to note that information obtained from the manufacturer may uncover potential emission related issues which could result in a major deficiency.
- Major deficiency letters concern potential emissions related issues resulting in an invalid certification test. An invalid certification test serves as a basis for the revocation of a Certificate of Compliance. Prior to the agency initiating the revocation of the Certificate of Compliance, the manufacturer may choose to stop sales, retest, and submit a valid certification test report upon receipt of a major deficiency letter. If the manufacturer chooses not to stop sales, chooses not to retest, or if the retest is determined to be invalid or fails to meet the emission standard, EPA will proceed with the revocation of the Certificate of Compliance in accordance with the Wood Heater Rule.
Rafael Sanchez (email@example.com) or (202) 564-7028