That’s way inefficient on your unit though, you’re spending more on power and working it harder than you would if you just left it at 69° and split the difference.
That’s not how it actually works though - and is a common misconception. See here for some references from the US DoE and others (easier than putting them here on my phone).
Basically, it’s not super inefficient to heat the house back up and being at a higher temp (and increased gradient to outside teml) is harder to maintain and uses more energy overall.
That’s way inefficient on your unit though, you’re spending more on power and working it harder than you would if you just left it at 69° and split the difference.
That’s not how it actually works though - and is a common misconception. See here for some references from the US DoE and others (easier than putting them here on my phone).
Basically, it’s not super inefficient to heat the house back up and being at a higher temp (and increased gradient to outside teml) is harder to maintain and uses more energy overall.