Wood Burning
Denver Winter Burning Restrictions: Can You Use Your Wood Fireplace?
Denver-area Action Days can restrict residential wood burning during winter. Learn who is affected, common exemptions, and where to check before lighting a fire.
Owning a wood-burning fireplace in Denver does not necessarily mean you can use it every winter day.
During Colorado's winter high-pollution season, Action Days can trigger mandatory residential burning restrictions across much of the seven-county Denver-Boulder metropolitan area below 7,000 feet.
Because restrictions are based on current air-quality conditions, this is a rule homeowners should check - not memorize once and forget.
When is the high-pollution season?
Colorado's Air Pollution Control Division describes the winter high-pollution day season as running from October 31 through March 31.
On Action Days during that season, mandatory residential burning restrictions generally apply in the seven-county Denver-Boulder metro area below 7,000 feet.
The affected counties include Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas, and Jefferson.
Does the restriction apply to every fireplace?
There are exemptions.
CDPHE lists examples including residences above 7,000 feet, certain approved or certified wood-burning appliances and masonry heaters, and homes where the stove or fireplace is the primary source of heat.
The exact eligibility of an appliance matters, so homeowners should check current state guidance rather than assume a newer-looking stove qualifies.
What is an Action Day?
An Action Day is issued when air-quality conditions trigger the state's advisory program.
Wood smoke contributes fine particulate pollution, which is why residential burning may be restricted when atmospheric conditions already favor poor air quality.
How do I know whether burning is allowed today?
Before lighting a wood fire during the winter season, check the current CDPHE Air Quality Advisory page.
Rules and advisories can change, so a blog article should never be used as the daily go/no-go source.
Does this mean I should not maintain my chimney?
No. Burning restrictions and chimney maintenance are separate issues.
Even if you use the fireplace less often because of Action Days, annual inspection remains useful because animals, water, deterioration, and venting issues can develop without frequent burning.
What about gas fireplaces?
The winter residential wood-burning restrictions are aimed at wood-smoke pollution and have specific regulatory definitions and exemptions. Gas fireplace use is a different category, though all appliances must still be operated according to local rules and manufacturer instructions.
Why this is especially relevant to Denver homeowners
A real-estate listing may advertise a wood-burning fireplace as a major feature, but a new buyer may not know about winter Action Days.
It is better to understand the rules before planning to rely on a fireplace for routine supplemental heat.
Bottom line
During the Denver-area winter high-pollution season, check current CDPHE advisories before burning wood. Restrictions can apply across the seven-county metro area below 7,000 feet, with specific exemptions.
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Frequently asked questions
No. Mandatory restrictions are tied to Action Days during the winter high-pollution season.
CDPHE lists specific appliance categories and approvals. Check the current rule and your appliance documentation.
CDPHE identifies residences above 7,000 feet within the seven-county area as an exemption from the state residential restriction.
Use the current Colorado Department of Public Health and Environment air-quality advisory information.
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