Everyday tasks like showering, bathing and shaving can put home-damaging humidity into the air in your Wyandotte home. There’s good news however—a modest bathroom ventilation fan can protect you from warped wood, mold growth, broken drywall and other issues associated with a humid bathroom.
Even if you have ventilation fans in your bathrooms, do you know if they’re the right size? Are they as noiseless and energy efficient as they could be? Gee & Missler Heating & Air Conditioning is here to answer your questions.
Today’s bathroom ventilation fans are small and smooth and they operate more quietly and economically than ever before. You’ll find a hefty range of selections, from classic fans that will get the job done to fans with built-in heat lamps, motion sensors and heat-exchanger ventilation that helps prevent warmed air from getting out through your ventilation. While there are a lot of bells and whistles to pick from, the most critical aspect of your fan is whether or not it’s large enough to do its job.
Rated by the cubic feet per minute (CFM) of air they transfer, a bathroom ventilation fan should be able to exchange the air in a bathroom at least eight times an hour. With a normal 8-foot ceiling, your ventilation fan should have a CFM rating about the number of square feet in your bathroom. Therefore, if your bathroom is 5 feet by 8 feet, a CFM rating of 40 would be adequate.
If you have a higher ceiling, the equation gets a little more complex. You’ll want to multiply the width of the room by its height and length, divide it by 60 and multiply by 8. Or, to keep it easy, you can follow HGTV’s advice for bathrooms larger than 100 square feet – determine your CFM requirements by adding 50 CFM for every toilet; 50 CFM for each shower, bath and combo; and 100 CFM for each whirlpool.
If you’re not sure if your bathroom ventilation fan is the correct size, or you know it’s time for a new one, give the professionals at Gee & Missler Heating & Air Conditioning at call at 734-363-8907. We’re here to help you guarantee you have a ventilation fan that will work hard to guard your home and keep it cozy.