Article

How to choose exhaust fan: The Ultimate Guide to Help You!

What Is a Bathroom Exhaust Fan?

A bathroom exhaust fan sucks air out of the bathroom and directs it outside. It creates air circulation in the space, with replacement air usually coming through the door or an open window. The fan blows most of the moisture out, and the air movement prevents what moisture remains from condensing onto bathroom surfaces.

 

An exhaust fan must have a clear pathway to the outdoors, typically supplied by a duct that passes through a side wall or through the roof. The fan is usually controlled by a wall switch and draws power from the 20-amp circuit that powers the bathroom light and receptacles. If it has an attached heat lamp,  that may need its own 20-amp circuit.

Fuction of exhaust fan

Eliminate Odors

One of the main reasons for having an exhaust fan is for odor control. If an unpleasant odor occurs in the bathroom, it can easily be drawn out with the help of an exhaust fan. As a result, the ventilation system will enable you to keep your bathroom well maintained, while offering a clean atmosphere for the next person.

Humidity Reduction

Reducing the humidity in a bathroom is vital for its upkeep. Excessive moisture can wreak havoc on bathroom walls by causing paint and wallpaper to peel. In extreme cases, it can even cause doors to warp!

Most importantly, the humidity can cause mold to accumulate. These spores can grow rapidly and can be difficult to get rid of. Therefore, it is crucial to have bathroom exhaust fans to prevent this from happening.

Eliminate Foggy Mirror Syndrome

Bathroom exhaust fans will help control the moisture and remove water vapor on your mirrors and walls.

Application of exhaust fan

Bathroom
A lot of moisture builds up in bathrooms, due to showers, baths, and the resulting condensation. When this moisture accumulates on tiles and mirrors, the excess condensation can lead to the growth of mold spores. Bathroom exhaust fans are relatively expensive and easily eliminate this issue. If you’re looking to find an appropriately sized bathroom exhaust fan, simply measure the room’s volume and divide that number by five. Additionally, if your bathroom’s ceiling is exceptionally high (over eight feet), more than one vent may be required.

Kitchen
Many of us spend a majority of our time in the kitchen, but it’s also a place where we get creative. And every culinary creation runs the risk of odors, smoke, and grease. Whether for home or commercial uses, a kitchen exhaust fan helps remove odors, smoke, grease, and moisture from your kitchen.

A basement ventilation system helps to limit the amount of excess moisture in the air allowing for more natural breathable air.  There are various methods and ways to introduce a ventilation system into a basement, there are solutions for the DIY’er and then solutions for the more experienced professionals. Usually they use basement window exhaust fan.

Types of Bathroom Exhaust Fans

Ceiling mount

Probably the most common type, a ceiling mount fan exhausts through a duct that passes through the attic to a vent outlet mounted on the roof. This type of fan can be centrally located in the bathroom to handle the shower, bathtub and toilet.

Wall- or window-mount fan

If the bathroom has an exterior wall, an exhaust fan can be mounted on it, eliminating the need for lengthy ducts. It’s also possible to mount an exhaust fan in the window in the same way as an air conditionor. 

Inline exhaust fan

An inline fan is mounted in a remote location (often the attic) and connects to an intake duct that terminates in a grille mounted on the bathroom ceiling. The output vent extends through a wall or the roof. Besides being quieter than a ceiling mount fan, an inline fan can serve more than one bathroom at the same time.

How to Choose exhaust fan

The Home Ventilation Institude (HVI) recommends a ventilation rate of eight air exchanges per hour for bathrooms.

Fan capacity is measured in cubic feet per minute (CFM) and has a one-to-one relationship with the square footage of the bathroom, up to 100 sq. ft. A 70-square-foot bathroom needs a fan with at least 70 CFM, while a 50-square-foot bathroom needs a 50 CFM fan. The minimum is generally 50 CFM, so that’s the smallest one available.

Bathrooms larger than 100 square feet need more ventilation than required by the square footage. The HVI recommends upping the capacity as follows:

50 CFM per toilet;

50 CFM for a shower;

50 CFM for a regular bathtub;

100 CFM for a bathtub.

If you undersize your exhaust fan, the bathroom won’t be properly ventilated. But there’s no problem with over-sizing it. If you can’t find a fan that’s an exact match, it’s best to opt for a model with a larger capacity. Oversizing is recommended if the ceiling is higher than eight feet.

Hot-sale products

BPT13B

1. Economic model, up to 3800pcs for 1*40HQ.

2. Galvanized housing resist errosion.

3. Slim housing and removable duct. 

4. Easy installation and quiet operation. 

BPT15A

1. Ultra quiet model, 90CFM only 1.0sones.

2. Multi functional, led lighting, humidity sensor, motion sensor, time delayer, speed control are for option.

3. Carbon black housing resist errosion for long time. 

Chinese Manufacturer VS Foreign Vendor

Panasonic

● NuTone

● Delta Product

● Systemair

● Air King

● Canarm

● Vent-Axia

Wintek(Weihe)

Wintek VS Well-known brands

Wintek BPT13B-80

80CFM
1.5Sones
$1? USD
ETL, Energy Star listed
7 1/2 * 7 1/4 * 5 3/4 Housing 
3800pcs for 1*40HQ 
           Better

Broan-Nutone AE80B

80CFM
1.5 Sones
$82 USD
UL, Energy Star listed
9 1/4 * 10 * 5 3/4 inch Housing 
2500pcs for 1*40HQ

Wintek BPT15A-110

110CFM
1.5Sones
$1? USD
ETL, Energy Star listed
9 * 9 * 7 4/5 Housing
1900pcs for 1*40HQ 

Panasonic Whisperceiling 110CFM

110CFM
0.9 Sones
$220 USD
ETL, Energy Star listed
10 1/4 * 10 1/4 * 7 3/8 
1900pcs for 1*40HQ 

Conclusion

In short, when purchase bathroom exhaust fan in bulk, the most important thing is to find the best price-efficient product. Winteks` bathroom fan have better performance than some huge vendors but sell at better nice. Wintek is the best choice for importers, builders, wholesalers and medium electric vendors.

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