EPA-certified wood-burning hearth products have a label on the back or side that clearly designates that they are approved, whereas non-certified wood stoves do not. Many non-certified stoves also have solid metal doors. To identify homes that are using non-certified stoves, communities use various survey and research techniques by mail, phone and web. If utility companies are involved in the program, they may be willing to include a questionnaire and other background materials to help determine which households may be eligible for changeouts.
If your wood stove is certified, the back label and hang tag will look like the one to the right.
EPA Certified Wood Stoves: Frequently Asked Questions
Wood Stove Certification