Inline Bathroom Exhaust Fan

What Are the Benefits of Using an Inline Fan in the Bathroom?

There are a variety of alternatives when it comes to replacing an outdated, loud, and useless bathroom fan. Traditional ceiling-mounted bathroom fans can be replaced with a new fan of the same design.

An inline fan system can be used in lieu of the old fan if that is not an option.
It’s important to note that an inline fan does not hang straight from the bathroom’s ceiling. An attic space above or somewhat distant from the bathroom is where the exhaust fan is installed. Inline fans have a number of advantages over standard bathroom exhaust fans, including:

In order to maximise power and minimise noise, the fan may be put anywhere in the attic, allowing it to be positioned far enough away from the exhaust point on the ceiling to reduce fan vibration and noise.

An attic’s insulated ductwork is a great sound dampener and prevents dampness.
In bigger bathrooms, many exhaust connections can be created in the ceiling and only one fan installed.

A WYE connection, flexible ducting, and several grilles are used to accomplish this task. A wide variety of grille styles and sizes are readily available, and they can include

How Much Does an Inline Bathroom Fan Cost?

An inline bathroom exhaust fan can cost between $150 and $450 on average. (Mainly depending on ventalation requirements)

Certified electricians can cost $180 to $220 per hour for labour, and replacement takes 2 to 3 hours.

Request free quotes from licensed electricians in your area.



1) FAN – The size of the fan you buy will be determined by the size of the bathroom you are ventilating. All fans must exhaust to the outside, therefore when selecting a fan, consider the diameter of the ductwork going to the roof cap, wall cap, or soffit vent. Because it is not recommended to lower the width of your duct run, if you add a powerful fan, you may need to install a new wall cap, roof cap, or soffit vent.

2) Inside GRILLE – An interior grille of some kind will be required to function as your ventilation exhaust point. Grilles are available in a variety of forms, sizes, and designs. As with the external vent, you must match the diameter of your ductwork to the size of the grille’s duct collar. The grille may or may not include an incorporated backdraft damper to prevent outside air from entering the bathroom. A flap, pair of louvres, or damper may be included in the outside grille. The best bet is to incorporate a fantech spring-loaded backdraft damper into the system.

3). DUCTWORK – You’ll need ductwork to connect the inside grille, fan, and external vent. Rigid, metal ductwork provides the least amount of airflow resistance, whereas insulated flexible ducting is easier to work with and has sound-reducing properties. Regardless of the type of ductwork you choose, if it is going through an attic area, be sure it is properly insulated to avoid condensation problems.

4). SWITCH – A timer for your bath fan is a wonderful option. If you neglect to switch off the fan, it will do so automatically. In general, an inline fan system is quieter than a ceiling mount fan, and you may forget it’s on.

5). EXTERIOR VENT – ALL BATH VENTS MUST EXIT TO THE OUTSIDE. You may vent your ducting through a wall, roof, or soffit. It is preferable to keep your ducting as straight and as short as possible. Roof caps, wall caps/louvers, and soffit vents are all available from us.

Installing an Inline Fan Has a Number of Benefits

  • There are fewer placement restrictions with in-line fans.
  • Due to the fact that in-line bathroom exhaust systems may be put virtually anywhere in the attic, they are an excellent option for achieving quiet bathroom exhaust.
  • A fan ventilation system installed in-line can be utilised to ventilate contiguous bathrooms or several exhaust locations inside a larger bathroom.
  • When ductwork is too lengthy for efficient exhausting, inline exhaust can be employed.
  • They enable excellent moisture removal through the use of forceful venting.
  • In-line fans are known for their long-lasting motors.
  • In-line fans enable effective house ventilation while maintaining the building’s and home’s integrity.

How Long Does Installing an Inline Bathroom Fan Take?

In most cases, this will take between two and four hours, although it might take longer depending on the construction of your house. 

Attic access and venting options differ in each home.

Inline Bathroom Exhaust Fan FAQ

Who can install an inline bathroom exhaust fan?

An inline fan may be properly installed by a licensed electrician or experienced installer who can supervise the whole installation procedure.

What are inline bathroom exhaust fans?

Inline fans are installed inline with the ductwork and circulate air both inside and outside the home. Additionally, an inline fan may be referred to as a remote-mounted fan. Inline fans are advantageous for a variety of applications, including the ventilation of moist areas such as bathrooms, kitchens, and laundries.

Can I install an inline bathroom fan myself?

An inline bathroom fan may be installed by any homeowner. You, like a contractor, must get the necessary permissions.

Before beginning any work, we recommend that you contact with a certified electrician.

Is an inline fan the same as an exhaust fan?

The inline exhaust fan operates in the same manner as a regular exhaust fan, but has a unique design. The inline fan is attached to an attic joist. The fan is connected to a ceiling vent through a single duct. A second duct connects the fan to a roof vent.

Where do you put an inline fan?

Inline extraction fans are often meant to be placed near exit vents to extract (or suck) air from a room. When employed as part of an air-cooled lighting system, however, it is ideal to blow air over your lamps. In other words, your inline fan is placed before your air-cooled reflectors.

Is it easy to replace an inline fan?

Yes, you may set up the fan on your own. It’s not as tough as it appears to install a through-the-wall fan. Sure, there’s the fan type, power supply, vents, cutting, and a lot more to consider.