What Size Should My Bathroom Ventilation Fan Be? 07/28/2017Average tasks like showering, bathing and shaving can put home-destructive humidity into the air in your Chatsworth home. There’s good news though—a modest bathroom ventilation fan can keep you from distorted wood, mold growth, damaged drywall and other issues connected with a humid bathroom. Even if you have ventilation fans in your bathrooms, do you know if they’re the correct size? Are they as soft and energy efficient as they could be? True Temp Heating & Air Inc 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 great range of selections, from classic fans that will get the job done to fans with fitted 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 select from, the most imperative aspect of your fan is whether or not it’s full-sized enough to do its job. Assessed 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 typical 8-foot ceiling, your ventilation fan should have a CFM rating at least 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 easy, you can heed HGTV’s advice for bathrooms larger than 100 square feet – determine 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 unclear if your bathroom ventilation fan is the right size, or you know it’s the occasion for a new one, give the professionals at True Temp Heating & Air Inc at call at 706-695-7492. We’re here to help you guarantee you have a ventilation fan that will work hard to care for your home and keep it comfortable. You can even schedule an appointment with us online if that’s the most straightforward for you.