Turns out there's a magic number for your thermostat setting in the winter, experts say. Sixty eight degrees is ideal. But if you're looking for a ballpark, anywhere around 70 degrees is a good target ...

If the problem persists, you may need to replace your thermostat. Use a bubble level to check whether the subbase is mounted evenly on the wall. Tighten the mounting screws when it's level.

so if a thermostat is installed in a very cold or overly warm room, it may not accurately reflect the true temperature of your home. "Thermostats should not be installed near windows or in direct ...