Should You Leave Your Hvac Fan Running. On optionAir is always being cycled through your furnace filtration system when your fan is continually running. Keeping the furnace fan on also has the potential to boost indoor air quality IAQ.
Why You Should Leave Your AC On AUTO. Leaving the fan on 247 ensures cleaner air as the air is pulled through the filtration or UV light system. Cons of Continuously Running Your AC Fan.
The other answer Ive heard is that It costs just as much to run the fan on as it does when the AC is also running but I thought fans require low power so that doesnt seem to make sense to me either.
This heat is small yes but a room where a fan is left running is literally wasting energy and adding heat to your home. This heat is small yes but a room where a fan is left running is literally wasting energy and adding heat to your home. If its cloudy and relatively cool outside but feeling stuffy in your home running the fan for an hour or so can certainly help. Most homeowners dont realize that your air conditioner actually has two responsibilities.
