The Fire Brigade Employees' Union has instructed employees in these zones to not participate in any in-person days due to the latest round of COVID restrictions in Greater Sydney.

Online Open Days will be held on Fire and Rescue NSW's Facebook page on Friday.

Come and meet your local firefighters and learn about home fire safety at the Fire and Rescue NSW Open Day this Saturday.

Abermain and Kurri Kurri fire stations are among those around the state that will be open from 10am to 2pm Saturday to showcase FRNSW's broad capabilities.

Children will be able to see a fire truck, demonstrations and firefighting equipment whilst the grown-ups will be able to find out more about home fire safety.

FRNSW Assistant Commissioner Trent Curtin said the Open Day was an opportunity to show people that firefighters do so much more than fight fires.

"From fires, road crashes, hazardous material incidents and natural disasters to urban search and rescue, our firefighters are prepared for anything and ready to help anytime, anywhere," he said.

"A large part of our role is to educate the community about home fire safety and that's where Open Day comes in.

"This year we are focussing on the importance of having a working smoke alarm in your home.

"Each year, approximately 20 people die in NSW from fires that could have been prevented. Sadly, almost all of these fatalities occur in people's homes. Each death is a tragic loss for families, friends and the wider community.

"Additionally, for each fire fatality, there are also hundreds more people who survive a fire but suffer life-changing health consequences.

"Firefighters are committed to reducing the risk of such fires and to protecting the irreplaceable."

Assistant Commissioner Curtin said there is a 10 per cent increase in the number of house fires during the cooler months, with many fires starting in bedrooms and loungerooms due to heaters and electric blankets.

"This year we want to help residents prepare their homes for winter and in particular, encourage them to check their smoke alarms as only working smoke alarms save lives," he said.

For more information about the Fire and Rescue NSW Open Day, or to find your nearest event visit www.fire.nsw.gov.au/openday.

Please note: Abermain and Kurri Kurri were the only local stations listed at the time of publication. FRNSW says the list will continue to be regularly updated, so please recheck closer to the date.