Average tasks like showering, bathing and shaving can put home-damaging humidity into the air in your Bishop home. There’s good news however—a modest bathroom ventilation fan can keep you from warped wood, mold growth, cracked drywall and other problems 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 soft and energy efficient as they could be? Bishop Heating & Air Conditioning is here to answer your questions.
Today’s bathroom ventilation fans are small and modern and they run more quietly and efficiently than ever before. You’ll find a hefty range of options, from classic fans that will get the job done to fans with built-in heat lamps, motion sensors and heat-exchanger ventilation that helps block warmed air from leaking through your ventilation. While you can find a lot of bells and whistles to pick from, the most imperative feature of your fan is whether or not it’s big 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 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 about the number of square feet in your bathroom. Thus, if your bathroom is 5 feet by 8 feet, a CFM rating of 40 would be sufficient.
If you have a taller 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 straightforward, you can follow HGTV’s tips 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 proper size, or you know it’s the occasion for a new one, give the pros at Bishop Heating & Air Conditioning at call at 760-784-9034. We’re here to help you make sure you have a ventilation fan that will work hard to protect your home and keep it cozy.