What changed
For years, Burn Wise was the federal program aimed at wood smoke from homes. According to the EPA, it ran from 2009 to 2025, mainly to support efforts to meet the national air quality standards for fine particles, known as PM2.5. As of October 30, 2025, the agency says it is no longer updating program content, and the website now serves as a historical record. Support for Tribal-focused and indoor air woodstove initiatives moved to EPA's Office of Radiation and Indoor Air.
The tip sheets, brochures, best burning practices and firewood storage pages remain online as archived material.
What did not change
The end of updates does not change how wood burns. Wet wood still smolders, makes more smoke and leaves more creosote in the flue. Small, hot fires with plenty of air still burn cleaner than a firebox packed full and choked down overnight. A stove or fireplace insert built to current federal emission limits still produces far less smoke than an old open fireplace or an older stove.
State and local rules also remain in place. Air agencies in New York, New Jersey, Pennsylvania and Delaware, and many towns, may have their own rules on what can be burned, on outdoor wood boilers and on smoke. Those are set locally, so check with your town or state environmental agency before installing a new appliance or if you are unsure about restrictions where you live.
Why this matters inside the chimney
Smoke that leaves the top of the chimney as visible haze is partly unburned fuel, and some of what does not leave the chimney sticks to the inside of the flue. That deposit is creosote. It starts as a light, flaky soot, can harden into a crunchy, tar-like layer, and in a cold, smoky flue can glaze into a shiny coating that is hard to remove and burns very hot if it ignites.
The same habits that cut smoke outside cut creosote inside. Burning seasoned wood that has dried under cover for months, giving the fire enough air, and not letting a stove smolder for hours slows buildup. A flue sized correctly for the appliance stays warmer and drafts better, which also helps.
Practical takeaways
Owners do not need the program to keep burning cleanly. Split and stack wood off the ground with the top covered and the sides open to air. Look at the top of the chimney during a fire: a thin, nearly clear exhaust is a good sign, while thick gray or dark smoke points to wet wood or too little air. And keep up with annual inspection and sweeping, since the flue is where the results of every fire end up.
For homes with an older open fireplace that gets regular use, it may be worth asking whether an insert or a freestanding stove would suit the house better. An insert sits inside the existing firebox and vents through a liner run up the chimney, which keeps exhaust warm and burns far more of the wood. Whether that is practical depends on the size and condition of the firebox and flue, which an inspection can answer.
Want a professional look? See our wood stove installation service, or call (844) 468-2410 for a free written estimate.
