i’m so grateful, lord, i know that its no sin to succeed. while this can sometimes point to an issue with the thermostat itself, which is a fairly simple and inexpensive fix to have done, it can also be because of your furnace's lack of overall efficiency, as it is unable to reach or maintain the temperature that your thermostat is telling it to. however the change between august and september, that is when things are really changing, and why autumn is the perfect time for trying something new, considering changes you want to make and making new *school* year resolutions. 