State and Federal Information
- Connecticut Dept. of Environmental Protection – Consumer Information: Outdoor Wood Burning Furnaces
- Indiana Dept. of Environmental Management – Outdoor Hydronic Heaters
- Maine Air Toxics Advisory Committee Recommended Air Toxics Strategy, Appendix II: Position Paper on Outdoor Wood Boilers (OWBs)
- Massachusetts Dept. of Environmental Protection – Heating your Home with a Wood-Burning Appliance
- Michigan Dept. of Environmental Quality – Wood Burning & Air Quality
- New Hampshire Dept. of Environmental Services – What’s in that Smoke?
- New Hampshire Dept. of Environmental Services – Environmental Fact Sheet: Wood Stoves and Air Pollution
- New Jersey Dept. of Environmental Protection - Wood Burning in New Jersey
- New York Attorney General’s Office
- Vermont’s Outdoor Wood-fired Boilers – Facts and Information
- Washington State Dept. of Ecology – Outdoor Wood-fired Hydronic Heaters
- Wisconsin Dept. of Health & Family Services – Outdoor Wood Boilers (Water Stoves)
- U.S. Environmental Protection Agency – Outdoor Hydronic Heaters
- Environment Canada – Residential Wood Heating