Mid-Missouri hasn't been this cold since February of 2011 when the low temperature dropped to -10 degrees, which has many cranking up the heat in their homes.
Some of that heat is being lost through poorly insulated areas, especially in older homes.
Using a thermal camera, we saw where cold air filters in.
Jefferson City fire captain Tim Young said it's mainly windows and doors.
"If you can see daylight around windows or doors they need insulation. If you can see daylight air can move through there. And that air is going to be cold like it is right now blowing through there and displace your hot air from furnaces. It's going to make your furnaces work harder, that type of thing, so your energy consumption is going to go up," said Young.
Fire Station 3, built in the early 1960s, loses its heat through the large garage doors and windows.
On the camera, black indicates cold air and white shows warmth.
We were able to clearly see pitch black around the windows and doors with the camera.
In these bitterly cold temperatures, the heating system has to keep up with cold air trying to seep in.
Young recommends caulking windows in the summer or fall, but if you need a quick fix you can roll up towels under doors or windows.
If you lose power?
"If you can stay in that center part of your home it's going to lose heat less than what the outer part of it will, so rooms that are centrally located..stay in there and keep those closed off, burn a candle or two...it's going to generate a little more heat," he said.