Wood-Burning Fireplace

Open indoor wood fires.

58Moderate burden · out of 100
Cleaner swapA sealed stove, or cleaner heating

How this score is built

  1. 100Start
  2. 77Chemical hazard 5 × 4.6−23
  3. 63.4Everyday exposure 4 × 3.4−13.6
  4. 58Persistence 2 × 2.6−5.2, then rounded to 58
  5. ModerateThe band58 sits in 40–59.

What each input rests on

The three ratings behind the score, and the studies each rests on
InputRatingEvidence
Chemical hazard5/10
  • A review concludes that wood-burning stoves and fireplaces emit significant quantities of known health-damaging pollutants, including several carcinogenic compounds, as well as CO and NOx.

    Woodsmoke health effects: a review · Inhal Toxicol 2007

    DOI 10.1080/08958370600985875 · PMID 17127644 · Abstract · read 2026-10-06

Everyday exposure4/10unsourced input
Persistence2/10unsourced input

Ratings are editorial. A study listed here supports the rating; it did not compute it. How the index is built

What this means for you

Wood smoke is a major source of indoor PM2.5, linked to respiratory and cardiovascular harm. If you burn, use a sealed, well-drawing stove.

Evidence strength: strong

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Lower-exposure choices