Twenty-two Victorians died in house fires last year, a rise of more than a third from 2019.
Firefighters say many of the deaths were preventable, since half of the fatal fires were at properties that did not have working smoke alarms.
Most of the deadly fires started at night, between 9pm and 6am, inside living areas and bedrooms.
Acting Fire Rescue Commissioner Ken Brown said the deaths pressed the importance of working smoke alarms.
"We know most fatal fires start at night, and the smell of smoke will not wake you up, so it is crucial you have smoke alarms in all bedrooms, living areas and hallways," he said.
The 2020 figure is higher than the 16 deaths the year before and sits above the long-term average deaths from fires, which is 18.
Australian Associated Press