HVAC replacement companies recommend turning the temperature down by at least eight degrees before you go to sleep for eight hours or more, depending on how long you sleep at night.
Does turning the heat down save money?
According to the U.S. Department of Energy, “you can save as much as 10 percent per year on heating and cooling by simply turning your thermostat back seven to 10° for eight hours a day from its normal setting.” The savings is greater for buildings in milder climates than for those in more severe climates.
Is it better to turn the heat off or down?
In all likelihood, you’ll find that turning the heat off is the most efficient option for you. If you’re looking for better energy efficiency, consider replacing your boiler or furnace.
Does turning your heat on and off cost more?
ANSWER: Turning your heat on and off is not cost effective, since your system will have to work extra hard for extra long to get the temperature back up.