Where I’m at, the temps flip-flop day to day, even hour to hour. In the morning it’s 35° outside, and by evening it’s 79°. I gave up keeping up with the temps and shut my unit off for the time being.
My question is why can’t HVAC units be programmed to say that if the outside temp reaches n° and the inside temp reaches m° cold, turn on the heat; conversely, if the outside temp rises to n° and the inside temp reaches m°, then turn on the AC?
My thermostat already knows the outside and inside temp, but I still have to manually switch it back and forth. I want a system that I can just set it and forget it all year round.
They can, they’re called smart thermostats. They need to know the outside and inside temp and honestly the easiest way to do that is to just connect them to the internet. Plus they’re even better when they know it’s going to be cold all day vs cold for half the day, then the sun comes out and is really hot the second half.