3 Best External Inline Blowers For Range Hoods (2021 Review)

The best external inline blowers have a strong enough fan speed (cfm) and are easily installed.

Some inline blower hoods even have mounting chains so you can suspend them from attic rafters. You can also read my review on the quietest range hoods here.

In this review, I will go over...

  • My #1 top pick for the best inline blower hood
  • Choosing the inline blower speed (cfm)
  • Pros and cons of my top picks

Let's get started with this guide!

top best rated inline blower range hood reviews

My Overall #1 Rated Pick

top best rated external inline blower range hood reviews
  • Humidity sensor for bathroom fan
  • Motion sensor for light
  • Manual on/off button for fan & light
  • Occupancy mode
  • Vacancy mode

My overall top pick for the best external inline blower fan for range hoods goes to this Awoco unit. This powerful inline blower is rated at 800-cfm and is suitable for large kitchens and homes. It includes 4 fan speeds, mountable controls and LEDs, and it also has a delayed shutoff feature.

ImageProduct
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1. Awoco
  • 800-cfm
  • 4 Fan Speeds
  • Auto Off
  • 800-cfm
  • 4 Fan Speeds
  • Auto Off
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2. Broan HLB3
  • 280-cfm
  • Rubber Mounts
  • Hanger Kit
  • 280-cfm
  • Rubber Mounts
  • Hanger Kit
View on Amazon
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3. Broan HLB11
  • 1100-cfm
  • Galvanized Steel
  • Built-In Damper
  • 1100-cfm
  • Galvanized Steel
  • Built-In Damper
View on Amazon

Top 3 Best Inline Blowers For Range Hoods

My top picks for the best inline blower for range hoods include two by Broan and one by Awoco. These range hoods range from 280 to 1100 CFM, and they all include built-in dampers to prevent back drafts. Check them out below...

  1. Awoco
  2. Broan HLB3
  3. Broan HLB11

Why Install A Inline Blower Range Hood?

Inline blowers, also known as remote blowers, are a great way to get a nearly silent range hood. Inline blower fans are installed in either an attic, basement, or sealed crawlspace.

The existing range hood stays in place, but the blower is removed, so when you turn on the hood only the inline blower turns on. This is pretty much the only way you can remove most of the noise from a range hood. It won't be 100% silent just because moving air flow still creates a sound, but it will be significantly quieter.

And the loud noise from range hoods is probably the number one complaint among homeowners.

Read Also: What Are The Best Under Cabinet Range Hoods?

How Do The Control Work For Inline Blowers?

Most inline blowers can simply be wired to the existing hood, and you don't need to change the control buttons.

However, other range hoods have separate controls that you will have to mount to the existing range hood.

top best rated external inline blower range hoods reviews

What Is The Sizing (CFM) Of Inline Blower Range Hoods?

Inline blower fans range from around 200-cfm and all the way up to 1000+ cfm. CFM stands for cubic feet per minute and is a measurement of exhaust capacity or speed.

Inline external blowers tend to have more than the average range hood CFM just because they make less noise.

Read Also: Do Range Hoods Have To Be Vented Outside?

However, homeowners should be aware that if a range hood exhausts over 400 cfm, they may need to buy an additional automatic makeup air system. A makeup air system will bring in fresh air to the home in order to prevent a negative air pressurization problem in the home.

If there are gas appliances in the home, an overly powerful CFM hood can cause hazardous back drafting which can lead to carbon monoxide poisoning. Back drafting is a phenomenon when the exhaust gases from a gas appliance don't properly exit to the outside, but are pulled back into the interior of the home.

Read Also: How To Install A ZLine Range Hood?

What Is The Best Inline Blower Fan For Range Hoods?

Here are my full reviews of the top inline blowers for kitchen hoods together with their pros and cons. Check it out below...

This is a high quality inline blower exhaust fan made by Awoco. This inline blower fan is installed in the attic, and it is connected to the range hood (and exterior roof vent) with a 6-inch duct.

And you install the 4-speed control panel to your existing range hood—the highest speed is 800-cfm. Due to the high CFM of the highest speed, homeowners may need an automatic makeup air system installed as well.

This unit also comes with two 1.5-watt LED lights which are removable. The Awoco inline blower also has a 3-min auto delay off timer to help remove all smoke and fumes.

Pros

  • 800-cfm high speed
  • Two removable LED lights
  • 4 fan speeds
  • Auto delay off

Cons

  • Can't use existing hood control buttons

The HLB3 is a premium inline blower exhaust fan by Broan for your existing kitchen hood. This inline blower is installed in your home's interior such as your attic or basement, and vents to the outside.

It is rated at 280-cfm and this inline blower will make your existing range hood super quiet depending on how far away it is. It comes with 8 installation brackets as well as a hanger kit (chains) which allows you to hang it.

This inline blower has also been designed with rubber motor and housing mounts for even quieter operation. There is also a built-in damper (flap) with this blower. The duct is 10-inches so you can buy an adapter to match any existing range hood duct.

Pros

  • 280-cfm
  • Motor and housing mounts (reduces noise)
  • Built-in damper
  • Installation brackets and chains

Cons

  • Have to buy duct adapter

The HLB11 is a high quality inline blower fan made by Broan. This powerful 1100-cfm inline blower will remove smoke and cooking fumes from your kitchen hood, while installed remotely in your attic, basement, or sealed crawlspace.

You also may need an automatic makeup makeup air damper with this powerful blower to prevent hazardous negative air pressure problems.

The HLB11 comes with a hangar system which will suspend it with chains, or you can install it using the mounting brackets. This blower is made out of galvanized steel for a durable finish. It also has a built-in damper system.

Pros

  • 1100-cfm
  • Galvanized steel
  • Built-in damper
  • Hanger kit

Cons

  • So powerful you may need makeup air system
  • Installation difficulty

My #1 Top Pick: Awoco

My top pick for the best external inline blower fan goes to this unit by Awoco. Here's why...

#1. Power

Rated at 800-cfm, this inline blower is powerful and great for larger kitchens and homes. You may need an automatic makeup air damper though.

#2. Mountable Controls & LEDs

This unit comes with a separate mountable control panel and LEDs, and it will work with most range hoods.

#3. Delayed Auto Shutoff

With a delayed auto shutoff feature, this inline blower will remain on for a few minutes by itself to make sure all of the smoke and fumes has been exhausted.

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Arie Van Tuijl

Arie Van Tuijl

I am a licensed home inspector in two U.S. states and the founder of Home Inspector Secrets. After performing hundreds of inspections, and seeing thousands of house defects, I realized people would love to have an online resource dedicated to home maintenance. I write detailed home guides and product reviews sprinkled with inspection tips. You can read my bio here.

About Home Inspector Secrets

Home Inspector Secrets is an online resource for owners, buyers, and sellers to understand all aspects of home maintenance. We have detailed home guides, product reviews, inspection advice, and much more.

Other Home Guides

Looking to learn more about home maintenance? Check out our other informative home product reviews and guides!