NSW Police have confirmed another person has died in the bushfires on the state's South Coast.

Key points: The total number of deaths in NSW this fire season stands at 19, while one person remains missing

The total number of deaths in NSW this fire season stands at 19, while one person remains missing At least 60 more properties in NSW were destroyed at the weekend

At least 60 more properties in NSW were destroyed at the weekend The RFS and NSW Government deny claims they rejected Defence Force assistance

Police say the 71-year-old man was reported missing from Nerrigundah.

The man was last sighted on New Year's Eve and was moving equipment on his property.

Police confirmed he was one of two men Premier Gladys Berejiklian referred to as missing on the South Coast during a press conference on Monday morning.

A second person remains missing from Bombala near the Victorian border.

NSW Rural Fire Service (RFS) Commissioner Shane Fitzsimmons said authorities were hoping for a good outcome.

"Whether they've gone to family or friends, that's what we're hoping for, or whether it's something more tragic, we just don't know at this stage," he said.

Police said the man's body was discovered between a property and a car, which had both been destroyed by fire.

The Badja Forest Road Fire had been burning in the area preventing access by emergency services for a number of days.

A large-scale land search was conducted on Monday and police made the grim discovery around 4:00pm.

It brings the total number of deaths from this bushfire season to 19.

Artist Peter Williams lost his home and gallery in Mogo. ( ABC News )

At least 60 properties were destroyed at the weekend, among them the Mogo gallery and home of artists Vanessa and Peter Williams.

"The house wasn't just a house, Vanessa tuned it to be almost like a museum," Mr Williams said.

"It was full of our art and precious things and we'll never have it again."

The blaze that burnt through their property was so hot that unfinished pottery did not need to go into the kiln.

"The fire actually finished off my work — and me," Mr Williams said.

"We've just had our 40th Christmas here and now it's all gone," Ms Williams added.

The intense heat finished pottery that would normally require a kiln. ( ABC News )

Crews made the most of milder conditions, clearing fallen trees and assessing damaged buildings for unstable walls and asbestos.

Power remains out for thousands on the South Coast and is likely to remain down for some days.

Phone and internet communication is patchy and petrol is still in limited supply with long queues seen at many service stations.

Locals in the Eurobodalla Shire were told to start boiling their tap water after supplies were boosted straight from the river.

Premier denies turning down help

Earlier, NSW Premier Gladys Berejiklian denied turning down Australian Defence Force (ADF) help with emergency evacuations.

At least 60 properties were destroyed at the weekend while a 47-year-old man was killed in the Dunns Road fire near Batlow.

Ms Berejiklian said NSW was in "uncharted territory".

A report at the weekend claimed the NSW Government had not taken up an offer of ADF help.

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Watch Duration: 2 seconds 2 s RFS Commissioner says no offers of assistance have been knocked back.

When that was put to Ms Berejiklian at a press conference on Monday morning she responded: "Not true, not true."

Meanwhile, Mr Fitzsimmons said: "The answer is simply no."

"There has been no offer of assistance that I'm aware of that we haven't accepted.

"If these rumours or these messages keep going around, I would simply ask [what] was the offer of assistance that we rejected? Because I'm certainly not aware of any."

Ms Berejiklian said her Government had "left no stone unturned" when it came to securing resources for firefighting efforts.

"Every single decision that our team in NSW has taken has been the right call, and we've accepted all appropriate offers that have been made and will continue to do so."