The most common means to install your variety hood is ~ above an inner wall. Both under cabinet and also wall selection hoods deserve to be vented on an inner wall.

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Venting a selection hood on an interior wall surface may seem daunting. But, if you are comfortable DIYing it, you have the right to save money doing the environment yourself. If not, us recommend hiring a neighborhood contractor to install the hood. Installing ductwork is the most challenging part.

That being said, with a small research, the average homeowner have the right to tackle this project. Simply follow the 5 steps below.

Determine where you desire to vent your variety hood.Install your ductwork in the shortest unobstructed route to the exterior of her home.Cut a feet 1-2 inches bigger than your ductwork whereby you’ll operation the duct from her hood.Attach the variety hood to your ductwork.Attach a wall or roof lid to the exterior wall surface or roof.

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Determine wherein you want to vent your variety hood.

To vent your selection hood top top an inner wall, you’ll require to reduced a feet in the wall surface for the ductwork. So, it’s important that friend know specifically where you want to vent your variety hood before continuing v the installation.

Keep in mind the you can always cut a larger hole if needed. However you can’t placed the wall back if you cut a hole the is as well large.

You might also be wondering: what size ductwork perform I require for my variety hood? check out the chart below.

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The larger the variety hood’s CFM, the bigger diameter duct you will do it need. Otherwise, her duct will certainly choke the air as it move to the outside. That puts much more strain top top the motor to vent the very same amount the air through a smaller sized duct compared to a larger duct.

Your hood will certainly not be able to move the amount of air it is advertised come move. Because that example, a 900 cfm hood attached come ductwork the is much less than eight inches will certainly not have the ability to move 900 cubic feet of waiting in a minute.

So, if in doubt, go v a larger duct. Come learn much more about duct size, check out our finish guide.

Install her ductwork in the shortest unobstructed route to the exterior of your home.

Ideally, your duct run should have actually no much more than 2 elbows. Any much more than two and also your exhaust device will have too lot resistance to properly vent all her greasy air come the outside.

To alleviate the number of elbows you’ll need, select a course that avoids studs, electrical wires, and also other obstacles in her walls.

Also, store the size of her ductwork under to 30’ or less. This ensures that your kitchen air makes it come the outside easily.

It have the right to be tricky come install her ductwork from your hood come the outside. Ideally, you desire to have the ability to have access points follow me your ductwork run wherein you can thread it through your ceiling or wall.

If you can hop in your attic or basement, this are normally the easiest locations to subject ductwork.

Otherwise, you may have actually to select a couple of areas to reduced out access points in her ceiling or wall so girlfriend can finish the installation. Before you go cutting holes in her home, if you aren’t details of what is within the wall where you room cutting, consult a contractor.

Cut a feet 1-2 inches larger than your ductwork where you’ll operation the duct from her hood.

Your hood will be running for year to come, so you desire it to comfortably fit in her kitchen.

One to two inches provides you an are to thread the ductwork with the feet so friend can affix it to the hood v ease.

Attach the range hood to your ductwork.

Once you have actually thread your ductwork come the outside, connecting that to your hood is easy. The ductwork connects to your hood via a shift piece.


Attach a wall surface or roof cap to the exterior wall surface or roof.

The final step is come go outside your house and also install a wall or roof cap at the finish of her duct run. A lid helps keep debris and also dirt indigenous entering her duct. This will allow it to run successfully for year to come.

Check out some of the ideal roof caps for your range hood right here.

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How to download an Inline Blower

An inline blower attaches to your ductwork, unequal a neighborhood blower the sits within your variety hood.

Here’s a quick video clip on exactly how to install an inline blower.


Just choose ductwork, inline blowers come in various sizes. You’ll desire to make sure that her inline blower has actually the exact same diameter together your ductwork.

Or, if that is a various size, you’ll need an adapter or shift piece. For example, if her ductwork is 8” however your inline blower is 10”, you’ll require two shift pieces that convert from 8” to 10” on each side of her blower.

To install your blower, first, you’ll need to find a place in her duct wherein you have actually room for it.

The further away it is native the hood, the quieter it’ll be.

But girlfriend don’t want it as well close to the outside. It’ll it is in noisy outside, and also you additionally might desire room for a backdraft damper. A backdraft damper need to be installed close to the discontinuation of her ductwork.

Once you’ve discovered a ar for your inline blower, you’ll must measure it and also account for some room to put shift pieces.

Make 2 marks on her ductwork for both sides of the inline blower. Then, reduced your ductwork the end so friend can connect the blower.

For a smooth installation, you must be pretty accurate with these measurements. For this reason if you at every uncomfortable, have actually someone v some experience twin check your work. Or, call a regional contractor to install the inline blower.

I’m installing a brick veneer backsplash and also a chimney style vented selection hood. I m sorry goes increase first?

Install the brick backsplash very first to make her life easier. If you install the backsplash first, friend won’t have to navigate about the range hood during the installation. Also, you’ll know the specific size that the backsplash and you have the right to mount the selection hood based upon its location. If any mistakes happen along the way, it will be much less complicated to reinstall and also relocate a backsplash 보다 a variety hood.

How to download a Backdraft Damper

A backdraft damper, like an inline blower, is mounted inside her ductwork. The damper is a vent the opens when you usage your hood and closes when you turn it off. Many importantly, it stays clear of back-drafting, i m sorry is the backward movement of external air earlier inside her home.

Ideally, you want all the greasy air to make it to the outside and a backdraft damper helps with that. It additionally keeps debris out, acting as a safety and security net if your wall surface or roof lid doesn’t record all the debris.

Backdraft dampers come in countless different sizes. For selection hood, the most common sizes room 8” and 10”. Lock are much less bulky than inline blowers. Most backdraft dampers space rectangular, so if you have actually circular ductwork make sure you find a damper the is circular.

Install her backdraft damper close come the termination of your duct – within a couple of feet. Once you’ve discovered a ar for it, cut through your ductwork and also attach the damper. Many dampers have actually screw feet on the top, bottom, and also sides for this reason you have the right to firmly attach them to her ductwork.

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Hopefully you uncovered this overview on how to vent your hood through a wall surface helpful. If you have any questions about your installation, feel cost-free to speak to Proline in ~ (877) 901-5530. Or, check out more of our installation short articles below.