Ordinary tasks like showering, bathing and shaving can put home-harming humidity into the air in your St. Louis home. There’s good news still—a simple bathroom ventilation fan can keep you from distorted wood, mold growth, cracked drywall and other trouble related 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? Morgner Inc. Air Conditioning & Heating is here to answer your questions.
Today’s bathroom ventilation fans are small and sleek and they operate more quietly and efficiently than ever before. You’ll find a hefty 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 avoid warmed air from getting out through your ventilation. While you can find a lot of bells and whistles to pick from, the most important characteristic of your fan is whether or not it’s big 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 standard 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 sufficient.
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 use HGTV’s tips for bathrooms larger than 100 square feet – establish 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 unsure if your bathroom ventilation fan is the proper size, or you know it’s the occasion for a new one, give the professionals at Morgner Inc. Air Conditioning & Heating at call at 314-262-4541. We’re here to help you make sure you have a ventilation fan that will work hard to protect your home and keep it comfy.