There is no end in sight to the bushfire crisis in Queensland, with severe heatwave conditions forecast to spread across the state.
Thousands of people have been forced from their homes as firefighters battle up to 140 wildfires during the unprecedented six-day emergency.
Queensland Fire and Emergency Services Commissioner Katarina Carroll says crews have been confronted with high temperatures and "unimaginable" conditions.
"(But) due to all the proactive work conducted over the last several days, we have lost a minimal amount of houses, thankfully," she told reporters on Thursday.
Two houses, two cabins and 15 sheds have been destroyed, with a further 14 homes damaged, since the crisis began on Saturday.
"This number could have easily been greater," she said.
Ms Carroll says the extreme temperatures have also taken down 15 firefighters with heat stress, with more hot days forecast.
Three blazes of significance continued to burn late on Thursday at Tinnanbar, south of Hervey Bay, Deepwater and North Stradbroke Island.
The small isolated community of Tinnanbar was cut off by bushfire and told to seek shelter as fire bombers and more than 20 fire crews fought the blaze.
Six other towns were ordered to pack up their valuables and evacuate as fires continue to rage in central Queensland.
In the state's south, a blaze on the eastern side of North Stradbroke Island threatened campers and powerlines.
The Bureau of Meteorology has forecast a severe heatwave that began in the state's north to move south in coming days.
"Around Capricornia, up around MacKay and inland, it'll be very hot again, so we're talking temperatures getting well up into the mid to high 30s for a lot of places, maybe even touching 40 in the odd spot," meteorologist Rick Threlfall told AAP.
"The hot conditions will persist over the weekend and continue in the fire areas, and in fact spread to many other parts of the state."
Australian Associated Press