How Should You Pick The Best Bathroom Exhaust Fan For Your House?
A bathroom exhaust fan is a mechanical ventilation device that draws damp, stale air from the bathroom and exhausts it outside of the house. An exhaust fan is required in any bathroom that doesn’t have a window for ventilation. For some places, even those with windows, they are still necessary. Bathroom exhaust fans need to be vented outside through ductwork or sidewalls.
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It takes a lot of time and effort to install a bathroom exhaust fan, but it is well worth it because it gets rid of hot, odorous air and extra moisture. Moisture encourages the growth of mould, and pungent odours are often unpleasant in any bathroom. Understanding exhaust fan sizing & how to choose one with the appropriate capacity for your bathroom are so vital.
What is a bathroom exhaust fan?
A bathroom exhaust fan is a mechanical ventilation device that improves the quality of the air in the bathroom by removing stale, dirty and excessively humid air when it is linked via ductwork to the home’s exterior.
Why is a bathroom exhaust fan necessary?
A properly installed bathroom exhaust fan purges the air of excess moisture, humidity, odours and other contaminants. It also aids in removing water vapour accumulation from mirrors and walls. Residents will feel considerably more at peace with enough ventilation. Reduced property damage is a side effect of better indoor air quality, saving the owner from needing to undertake pricey repairs.
Types of bathroom exhaust fans
There is a distinction between an exhaust fan and a ventilation fan since the former draws air in while the latter draws out air. Bathroom exhaust fans come in four main varieties, including:
Exhaust fans installed on the ceiling
Ceiling-mounted or ceiling-positioned bathroom exhaust fans are the most popular design. It works by connecting to an exhaust duct that is situated above the bathroom.
Installed exhaust fans on walls
A wall-mounted exhaust fan is utilised when a ceiling-mounted exhaust fan is impractical. Since the wall-mount fan vents directly outside, no exhaust ducting is needed.
Exhaust fans inline
The ductwork in the attic is connected to an inline exhaust fan that is installed in another place. The system is installed with a grill that connects the system and is positioned in the bathroom ceiling.
Exhaust fans mounted in windows
A window-mounted bathroom fan can be installed the same way as a window-mounted air conditioner, albeit being less popular than other types.
Things to take into account while picking a bathroom exhaust fan
The items listed below should be taken into account when buying a bathroom exhaust fan for your house.
Typical exhaust fan sizes
The rating of bathroom exhaust fans is based on the cubic feet per minute, or CFM, at which they can move air. Use of standard fan sizing is required in bathrooms that are 100 square feet or less. You require at least 1 CFM per square foot of your room’s area as a general rule. For bathrooms bigger than 100 square feet, the number of fixtures in the room can influence the choice of exhaust fan. To calculate using this formula, add the required CFM ratings for all of the fixtures. In contrast, a bathroom with a jetted tub, toilet and shower needs a 200 CFM fan, but one with just a shower and a toilet only needs a 100 CFM fan.
Noise ratings/levels
After choosing the right fan size for your bathroom, take into consideration the sound rating. A quiet fan could be a wise purchase if you want to make your bathroom calming and relaxing. It will be quieter for the fan to run. The available quietest fans have a sone rating of “1”. Fan noise is measured using sones, a unit of measurement for loudness. If the fan is rated between 0.5 & 1.2 sones, it is exceedingly silent. Ratings of 1.5 to 2.0 sones are also excellent. Fans can be quite noisy when their decibel levels exceed 4.0.
Adding another fan
If the toilet or shower portion of your bathroom is partitioned off by a door, installing a separate exhaust fan for those areas is a wise option. In small, enclosed environments, a 50 CFM fan ought to be adequate and functional. If not, make the required estimate based on the room’s size. Just remember that the fan needs airflow to operate well. If the enclosure door is closed & there isn’t a gap at the bottom of the door, there won’t be enough “makeup” air to keep the fan from underperforming. If the enclosure’s door gap is less than 5/8 inches, you should leave the door slightly ajar when using the bathroom or shower while the vent fan is running.
Smart choices
When someone enters the bathroom, a motion sensor turns on the fan. The fan speed can be pre-set to a low setting for frequent activities like shaving and turned on for intensive activities like taking a shower.
- The overhead lighting can be turned on using a switch or motion sensor.
- Using a low-wattage light, models with night lighting help you travel at night.
- When the equipment detects high humidity levels, ventilation fans with humidity sensors immediately turn on.
- Built-in heaters, frequently infrared heat lamps, provide a little extra warmth when it’s chilly outside.
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