Opposition Leader Tony Abbott will join his local fire brigade on bushfire watch in Nowra on the NSW south coast on Wednesday, as parts of the state continue to face severe fire conditions.
Mr Abbott has delayed his annual holiday and will for the next three days join the Davidson Rural Fire Brigade at Nowra.
Mr Abbott has been a volunteer with his local brigade since 2000, served as its deputy captain before becoming opposition leader in 2009 and has previously been directly involved with fighting fires.
Dozens of homes remain under threat in the state as firefighters fought more than 140 blazes, 30 of which remained out of control.
On Tuesday night the fires claimed their first home, with one property confirmed to have been lost in Jugiong near the ACT border.
RFS spokesman Joel Kursawe said a total fire ban would remain in place on Wednesday with residents urged to stay vigilant, as crews monitor the southerly change.
"Certainly it's going to be cooler ... however there is no rain in sight," he told AAP.
"We are going to take advantage of some milder weather conditions but we are certainly not out of the woods."
Warren Truss will serve as acting leader of the opposition during Mr Abbott's absence.