All Seasons Comfort Systems LLC

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What Size Should My Bathroom Ventilation Fan Be?

07/28/2017
Ordinary tasks like showering, bathing and shaving can put home-damaging humidity into the air in your Reeds Spring home. There’s good news however—a modest bathroom ventilation fan can protect you from warped wood, mold growth, damaged drywall and other problems connected with a humid bathroom.

Even if you have ventilation fans in your bathrooms, do you know if they’re the proper size? Are they as quiet and energy efficient as they could be? All Seasons Comfort Systems Inc is here to answer your questions.

Today’s bathroom ventilation fans are small and sleek and they operate more quietly and economically than ever before. You’ll find a hefty range of options, from simple fans that will get the job done to fans with fitted heat lamps, motion sensors and heat-exchanger ventilation that helps block warmed air from getting out through your ventilation. While you can find a lot of bells and whistles to select from, the most critical characteristic of your fan is whether or not it’s large enough to do its job.

Graded by the cubic feet per minute (CFM) of air they push, a bathroom ventilation fan should be able to swap out 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 almost as high as the number of square feet in your bathroom. So, if your bathroom is 5 feet by 8 feet, a CFM rating of 40 would be adequate.

If you have a taller ceiling, the equation gets a little more complicated. 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 simple, you can use HGTV’s guidance for bathrooms larger than 100 square feet – verify your CFM requirements by increasing 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 right size, or you know it’s time for a new one, give the experts at All Seasons Comfort Systems Inc at call at 417-739-4606. We’re here to help you guarantee you have a ventilation fan that will work hard to guard your home and keep it comfy. You can even arrange an appointment with us online if that’s easiest for you.

2018-07-10T18:54:25+00:00Uncategorized|

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