Knoxville firefighters responded to three fires in less than 12 hours this weekend.
The first happened in South Knoxville on Goldfinch Ave. around 9:20 p.m. on Saturday.
A homeowner reported his front bedroom was engulfed in flames.
The victim received minor burns.
40 minutes later, firefighters responded to Crossroads West Apartment complex near Papermill Drive in West Knoxville.
The fire started in a man's kitchen and left 30 units without power.
Then, just before 7:20 a.m. on Sunday, another fire broke out on Sam Houston St. in South Knoxville.
According to the Knoxville Fire Department (KFD), the fire broke out near an oxygen-fed sleeping aid where the woman was sleeping.
When temperatures drop, KFD said it expects to be busy.
"It's kind of an unspoken truth around the fire stations that anytime the temperatures drop down you can expect to be running throughout the night," said Capt. D.J. Corcoran, KFD spokesman.
The cause of the three fires may not be heat related; however, Corcoran said it is a good time to check your home.
"If you're going to heat with a kerosene heater, space heater, or even fireplaces... you want to keep about a 3 foot radius, so the radiant heat doesn't ignite any of those flammable objects that might be near," he said.
He went on to mention that when temperatures go up and down, it can be dangerous for homes with wall heaters.
Corcoran said people may push an object closer to the wall heater when it is off, then when temperatures drop the thermostat kicks in causing a fire.
All three fires are under investigation.