Ordinary tasks like showering, bathing and shaving can put home-destructive humidity into the air in your McHenry home. There’s good news though—a straightforward bathroom ventilation fan can protect you from warped wood, mold growth, broken drywall and other trouble 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 quiet and energy efficient as they could be? Jett's Heating & Air Inc. is here to answer your questions.
Today’s bathroom ventilation fans are small and smooth and they work more quietly and economically than ever before. You’ll find a great range of choices, from classic fans that will get the job done to fans with built-in heat lamps, motion sensors and heat-exchanger ventilation that helps avoid warmed air from leaking through your ventilation. While you have a lot of bells and whistles to pick from, the most critical characteristic of your fan is whether or not it’s large enough to do its job.
Assessed by the cubic feet per minute (CFM) of air they move, a bathroom ventilation fan should be able to replace the air in a bathroom at least eight times an hour. With a typical 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 larger 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 straightforward, you can heed HGTV’s guidance for bathrooms larger than 100 square feet – determine your CFM requirements by toting 50 CFM for every toilet; 50 CFM for each shower, bath and combo; and 100 CFM for each whirlpool.
If you’re unclear if your bathroom ventilation fan is the proper size, or you know it’s time for a new one, give the pros at Jett's Heating & Air Inc. at call at 815-410-1128. We’re here to help you ensure you have a ventilation fan that will run hard to guard your home and keep it cozy.