Heater Fan On or Auto - Which Setting Is Actually Better?
Deciding whether to leave your heater fan on or auto depends mostly on how much you care about consistent air temperature versus the size of your utility bill. It's one of those minor settings on the thermostat that most of us ignore until we notice a cold draft or see a surprisingly high number on the monthly statement. While it might seem like a "set it and forget it" situation, the choice you make actually changes how your HVAC system handles air filtration, humidity, and general wear and tear over time. ...