But there's a magic number that the U.S. Department of Energy says is optimal for home heating in the winter: 68 degrees when ...

Wanting to stay warm and comfortable at home can bring stress over the prospect of using too much energy for heating.

Adjusting your thermostat at night. The Department of Energy recommends keeping your thermostat at 68-70 degrees during the day and lowering it at night. Setting your water heater to 120 degrees.

Winter is approaching, and could bring the cold and snow. Experts weigh in about the best thermostat temperature to stay warm ...