It seems like common sense to seal off a room you rarely use so you don’t waste money cooling it. But it’s not the best idea.
If you seal off a room’s air conditioning registers and close the door, you can create extra pressure on your air conditioning system. That can actually cause air to leak through your ducts—and that’s a waste of air conditioning, energy and money.
A study by the Lawrence Berkeley National Laboratory proved that closing registers in unused rooms actually increased energy use throughout the home.
Plus, a hot room with too little air flow is a breeding ground for mold and mildew, which can ruin your furniture and create health problems.
Your best bet: Leave your registers open. To save some energy in unused rooms, close the drapes on sunny days.
Contact REEis today for a home energy audit and take the guesswork out of improving your home’s energy efficiency.