Posted on April 4, 2017 by Ol' King Cool Posted in Heating Issues . Depending on the time of year there are a few settings that you should follow: In the summer, set your thermostat to 78 during the day and 74 in the evening. In the winter, set your thermostat to 71 during the day and 69 in the evening. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related