Wood smoke isn't good smoke

Published on 16 June 2025

Winter has arrived in the Macleay, bringing chilly weather and the familiar scent of wood smoke. While wood heaters are a popular and cosy way to stay warm, they can also affect the air we all breathe.

Wood smoke is a major cause of poor air quality in winter. It contains harmful gases like carbon monoxide and nitrogen oxides, plus fine particles that can worsen respiratory conditions. In some parts of NSW, wood heaters contribute over 60% of fine particle pollution during the colder months.

The good news? Small changes in how you manage your fire can make a big difference.

Top tips for reducing wood smoke this winter:

Stack small logs, not big ones

Smaller logs burn more efficiently. A well-stacked fire with good airflow burns hotter, cleaner and produces less smoke.

Use only dry, aged, untreated wood

Wood should be left to dry for an extended period of time to reduce moisture. Wet wood creates more smoke and less heat.

Burning painted or treated wood releases toxic chemicals that are harmful to your health and the environment.

Start your fire hot and fast

A quick, hot burn generates less smoke than a slow smoulder.

Keep the air vents open

Airflow is crucial for clean burning. Avoid letting your fire smoulder overnight, which increases smoke and pollution.

Clean your chimney regularly

Build-up inside the flue can restrict airflow and increase smoke. An annual clean keeps your heater safe and efficient.

Consider upgrading your heater

Newer wood heaters burn more efficiently and produce significantly less smoke than older models or open fireplaces.

For more information on how to manage your wood heater responsibly, visit the NSW Environment Protection Authority's (EPA) website.