Hidden danger this Winter: Carbon Monoxide poisoning risk

Published on 26 May 2026

As temperatures drop, NSW Health is reminding residents to take care when heating their homes this winter and to never use outdoor heaters, BBQs, or portable generators indoors due to the risk of carbon monoxide poisoning.

Health authorities say colder weather often leads to an increase in unsafe heating practices, including bringing outdoor heating equipment inside homes, garages, tents, and caravans.

Dangers of Carbon Monoxide

Carbon Monoxide is a poisonous gas produced when fuels such as gas, charcoal, wood, or petrol are burned. The gas cannot be seen, smelled, or tasted, making it especially dangerous in enclosed spaces.

Exposure to carbon monoxide can reduce the body’s ability to carry oxygen to vital organs including the heart and brain. Symptoms may include headaches, dizziness, nausea, vomiting, weakness, and confusion. In severe cases, poisoning can cause unconsciousness, permanent injury, or death. People most at risk from carbon monoxide poisoning include babies, pregnant women, older people, and those with chronic medical conditions.

Outdoor gas heaters, charcoal BBQs, camping stoves, and portable generators should only ever be used in well-ventilated outdoor areas. Indoor gas heaters need to be properly installed and regularly serviced by a licensed gas fitter.

To reduce the risk of carbon monoxide poisoning this winter, NSW Health recommends:

Never using BBQs, outdoor heaters, or camping stoves inside homes, garages, tents, or caravans
Never operating portable generators indoors or in enclosed spaces
Ensuring adequate ventilation when using approved indoor gas heaters
Having gas heaters serviced regularly by a licensed professional
Watching for symptoms of carbon monoxide poisoning, especially if multiple people in the same space feel unwell

If carbon monoxide poisoning is suspected, move to fresh air immediately and contact the Poisons Information Centre on 13 11 26. In an emergency, call Triple Zero (000).

More information about carbon monoxide safety.