|You shouldn't set the thermostat below 60 during the day because the heater will have to work harder later to heat the house to 70.
Make sure to keep all doors to unused rooms closed and the heats off in those rooms. That can save you some money. But heat off when the temps are low is not a good idea.
|It was in negative digits last night here. I never turn my heat above 70 degrees...NEVER. At night I turn it down to 63. Heating fuel (kerosene) is $3.24 a gallon and my tank is 250 gallons to fill. It's pretty crazy.
Another reason I can't wait for summer.