Overview
- Officials highlight visual appliance warnings including a floppy yellow or orange flame, soot marks around burners, and unusual window condensation.
- NHS guidance lists symptoms such as headache, dizziness, nausea or vomiting, weakness, confusion, chest or muscle pain, and shortness of breath.
- People are advised to stop using suspected appliances, ventilate, go outside, and seek medical help, calling 999 for severe symptoms or 111 for advice.
- Suspected leaks should be reported to the free National Gas Helpline on 0800 111 999, and re-entry should wait until professionals say it is safe.
- Around 20 people die unintentionally from carbon monoxide in England and Wales each year with most deaths in autumn and winter, and more than half of UK homes are reported to use gas hobs.