Myth #1: Close the vents in rooms you don’t use
Usually this does not save energy. The way a residential heating and cooling system is designed, the air handler (or blower) moves a certain amount of air no matter what vents are opened or closed. So, closing registers may reduce the total amount of air moved by the blower, which reduces its efficiency. Wondering if it’s time for a new furnace? Our experts offer advice to help you decide.
Article source here: 10 Myths About Saving Energy at Home
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