The blaze that gutted two Queenstown homes was yet another caused by the poor disposal of hot ashes, a fire safety officer says.
Central North Otago fire risk management officer Stuart Ide said the fire, at Aspen Grove, Fernhill, on Sunday afternoon, took hold after hot ashes in an unsealed metal bucket on a deck were whipped up by the wind.
He said it was the third in Central Otago in two weeks caused by the poor disposal of hot ashes from wood burners or fires.
Mr Ide, who led the investigation, said the wind had been swirling and picked the ashes up and set alight some ''other combustibles'' on the deck.
''We don't know what those combustibles are; it could be pine cones or the firewood there. Then it has taken hold.''