Submit a Compliance Certification: Outdoor Hydronic Heater

Next steps

1. What to Know

   An outdoor hydronic heater (wood-fired boiler) may be sold and installed in Massachusetts only if:

   • The unit meets 2015 U.S. Environmental Protection Agency (EPA) new source performance standard (NSPS) certification requirements, and 
   • The manufacturer has filed a compliance certification with MassDEP.

   Open PDF file, 99.17 KB,  310 CMR 7.26(50)-(54): MassDEP Wood-Fired Boiler Regulation (English, PDF 99.17 KB)

   List of Massachusetts-Certified Outdoor Hydronic Heaters 

2. Review the Instructions

   Learn about your environmental obligations and how to complete your compliance certification.

   A manufacturer may certify at any point after a model has been tested by an approved lab, reviewed by EPA’s Environmental Technology Verification (ETV) group, and is in compliance with the applicable state requirements

   Open PDF file, 20.64 KB,  Instructions: Outdoor Hydronic Heater Manufacturer Certification (English, PDF 20.64 KB)

3. Complete & Sign Your Certification

   You may fill out and save the Microsoft Word form on your computer. The PDF version has to be printed out and completed by hand.

   Open DOC file, 184 KB,  Form: Outdoor Hydronic Heater Manufacturer Certification (English, DOC 184 KB)

   Open PDF file, 165.74 KB,  Form: Outdoor Hydronic Heater Manufacturer Certification (English, PDF 165.74 KB)

4. Prepare a Return to Compliance Plan, if Necessary

   Complete and submit this form if you are unable to comply with a particular requirement at the time you certify.

   You may fill out and save the Microsoft Word form on your computer. The PDF version has to be printed out and completed by hand.

   Open DOC file, 120.5 KB,  Return to Compliance Plan: Outdoor Hydronic Heater (English, DOC 120.5 KB)

   Open PDF file, 25.2 KB,  Return to Compliance Plan: Outdoor Hydronic Heater (English, PDF 25.2 KB)

5. Mail the Applicable Forms to MassDEP

   Send forms to:

   MassDEP Bureau of Air & Waste
   Outdoor Hydronic Heater Program
   One Winter Street, 6th Floor
   Boston, MA 02108

   Attn: Marc Cohen