Back to Blog
60 sq ft master bathroom layout7/21/2023 As you probably won’t need to run this larger fan at full power every time you enter the bathroom, consider pairing it with a variable speed control. Coming in at 115 CFM, the Broan L100MG Ventilation Fan (available from SupplyHouse) delivers. So, for an 80-square-foot bathroom with a 10-foot ceiling, you’ll get the best results from a fan with a rating of at least 112 CFM. Multiply that number by 8 (the target number of air exchanges in one hour): 14 x 8 = 112.Divide that number by 60 (minutes in an hour), and round the answer up to the next whole number: 800 ÷ 60 = 13.33 (which you then round up to 14).Multiply the bathroom’s square footage by the ceiling height: 80 x 10 = 800.If the aforementioned 80-square-foot bathroom has a 10-foot ceiling, we would use the following formula to determine the correct CFM: That basic formula for an average-size bathroom needs a little tweaking if the ceiling stretches past the standard 8-foot height. Photo: Look for more power if your bathroom has high ceilings. For example, if your bathroom is 80 square feet, you’ll need an 80 CFM fan, such as the Broan SmartSense 80 CFM Ventilation Fan (available from SupplyHouse). A fan’s power is measured in “cubic” feet per minute, so you might think that the next step would be to calculate the volume of the room by multiplying the area by the ceiling height. But O’Brian suggests a simpler rule of thumb: For bathrooms less than 100 square feet, “You can just go with 1 CFM for every square foot of floor area,” he says. To get the total square footage, multiply the length of your bathroom by its width. Each time the air in the room is completely replaced is known as an “air exchange.” To determine the correct CFM, calculate the area of your bathroom. A fan with the correct CFM should draw in enough air to refresh all the air in your bathroom at least eight times per hour. As this number describes the volume of air the fan can move, it’s directly related to the size of your bathroom and crucial in figuring out which fan is best for your needs. “The most important term to look for is CFM, which stands for cubic feet per minute,” O’Brian explains. A bathroom fan’s size refers not so much to the fan’s dimensions as it does to its power, or how much air the fan can move. With his help, we’ve pinpointed the key considerations when you’re sizing up your bathroom’s needs. Today’s fans are very effective at removing steamy air, and they no longer sound like jets on the runway. To navigate the newer options, we consulted Daniel O’Brian, technical expert for the online plumbing, heating, and HVAC retailer. Fortunately, manufacturers have spent the past 15 years focusing on producing highly efficient fans designed to suit bathrooms of specific sizes. Early models took an inefficient, one-size-fits-all approach, creating more circulation (and noise) than was necessary in small bathrooms and not enough circulation in large bathrooms. If you haven’t shopped for a ventilation fan recently, you’ll probably be pleasantly surprised at how far the technology has come. A: Good thinking! A bathroom ventilation fan will definitely reduce the humidity caused by bathing and showering, and it will protect your bathroom from moisture damage in the long run.
0 Comments
Read More
Leave a Reply. |