Smaller temperature differences between your house and outside generally means you’ll lose less heat (or air conditioning) from inside the house to the outside. Therefore, you will save energy by only heating or cooling as much as necessary, for the occupants and time of day.
So what’s the best strategy for cooling your house during these -hotter-than-a-ghost-pepper temperatures? It’s actually a good idea to turn off your air conditioning when you leave the house for an extended time (or if it’s superhot, turn the thermostat up several degrees higher until you get home.)
Another idea? A programmable thermostat can cool (or heat during the winter) your home 30-60 minutes before you get home so the temperature is JUST right when you arrive. You can save an average of $180/year!
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