Rumor has it that closing your HVAC vents in unused rooms will lower your energy bill? We hate to be the bearer of bad news but that’s a really bad idea. Closing air vents in the rooms you are not using will still produce the same amount of energy.
Why don’t we put into a situation that makes sense: imagine you’re at your local gym on the treadmill and you’re breathing in through your nose and out through your mouth at a quick pace. This is similar as to how your HVAC system works. Now imagine pinching your nose closed while you’re on the treadmill.
In the situation above, you’re closing off the airway but your body is still producing the same amount of energy but you’re just blocking off the area for where the air circulates.