Department of energy recommendation for thermostat setting

I recently visited my best friend Lisa and she has her niece staying with her for the summer.

One thing with my friend is that she always has visitors.

She lives in a state where lots of tourists flock to each year. And her house is great because she has a large patio with a pool making it ideal for a mini vacation. I live up North and my house doesn’t have a pool. In fact, I barely have a yard because I live in a big city. So, I do enjoy visiting Lisa because it always feels like a vacation. While staying at her home, I noticed that her central air conditioner stayed on for most of the day. Her house was a tad bit colder than what I was used to at home. I keep my thermostat at 78 during the days and at 74 when I sleep at night. It seems like Lisa keeps hers at 75 all day and all night. I don’t know how that translates on her utility bill but I assume that it is higher than what I pay at home. I once read that the ideal temperature for the thermostat in the Summer is 78 degrees and in the Winter, the heat should be set at 68 degrees. This recommendation came from the U.S. Department of Energy, and the organization mentions these temperatures being the most ideal for energy efficiency, comfort, as well as to save money on utility bills. I am all about saving money while not sacrificing my comfort, and I find that the D.O.E recommendation guarantees that.

a/c repairman