chimney size

How Do I Choose a Chimney Size?

We all know how vital a kitchen chimney is and how effectively it reduces odor and hot gases as well as fumes.

Nevertheless, when you are navigating the chimney aisle, knowing chimney size is imperative so that you get a chimney that effectively does its job.

So how do you figure out what is the ideal size of the chimney for your kitchen? It can prove to be a daunting and painful task to do it all by yourself.

All things considered, you have made it to just the place; here is how you can choose a chimney size.

Why Choosing the Right Chimney Size is Imperative?

To ensure that the chimney is removing all the odor and smoke, you will need to make sure that the chimney is of the correct size.

Since your chimneys will absorb all of the smoke and fumes, making your kitchen clean and smoke-free, you will take a look at your kitchen ventilation area and heating habits before you narrow down to one chimney.

Generally, the chimney size should never be undersized for your kitchen and cooktop because you risk all the hot gases and odor left in your kitchen. On the other hand, it should also not be too big that it looks hideous in your kitchen decor, and you possibly end up spending a lot.

Therefore, the size of your chimney is a crucial aspect, and you cannot fudge the number.

Additionally, you can choose your kitchen chimney according to your form list provided by

If you are struggling to figure out the right size, here are some factors that you should consider.

Measure Everything

You should ensure that you measure most of the things in your kitchen carefully before you go shopping for a kitchen chimney.

When it comes to looking for the right chimney size, you will need to measure the size of your stove, dimensions of up top, and the size of your kitchen.

Firstly, measure the dimensions of your cooktop or gas stove. We would recommend opting for a chimney that matches the dimensions. According to some experts, your chimney size should be bigger than your cooktop. Meaning, for example, if your cooktop is 60 cm wide, your chimney should be at least 65 cm. This way, it can easily catch all the odor, gas, and grease without being excessively larger.

Next, measure your kitchen or room you are going to work with. If you are building your kitchen from scratch, this is not so important. However, if you have already installed furniture, you will need to measure the available space.

Now, carefully gauge the distance between your cooktop and ceiling so that you can have the height between your chimney hood and cooktop as well as the remaining height of your roof.

Lastly, ensure that your installation height resonates with the manufacturer’s recommendation. If you neglect to apply this, you should buy a hood with a higher CFM.


To make things simpler and easier to understand, we have mentioned all the information in an easy-to-understand way.

Get Your Width

When looking for a chimney, you will need to ensure that you are opting for one that matches the width of your cooktop or range top. However, we would recommend going for the one that is bigger than your cooktop so that it can effectively do its job.The bigger, the better.

Get Your Height

Next, figure out the distance between your ceiling to your cooktop. Once you get this distance, subtract it from the maximum distance between your cooktop and chimney so that you will get the minimum chimney height.

Get the Breadth

That’s relatively straightforward, just gauge the depth of your cooktop and subtract two to three inches. In case you have a powerful chimney with a decent capture canopy, you can even go a bit more than three inches.


You should ensure that your chimney can cover as much area above your cooktop as possible, and therefore, it is best to go with a bit bigger chimney. If you want a number, then, for example, suppose your stove is 76 cm or 30 inches; the chimney size should be at least 34 inches or 86 cm.

Another way around the size is, if you have smaller stoves with 1 or 2 burners, a 60 cm chimney will be excellent for you. On the other hand, if you have a bigger stove with 3 or more burners, a 90 cm chimney will work wonders for you.

Bottom Line

There are a ton of things that you should consider when evaluating the size of your kitchen chimney. As a good general rule of thumb, you should ensure that your chimney is never smaller than your cooktop or stove.

Generally, you will find that a typical kitchen chimney comes in two standard sizes: either 60 cm or 90cm. And suppose your cooktop is 65 cm, you will have to go with the 90 cm kitchen chimney.

This range might seem a bit huge, but again, you want the chimney size to be bigger than your cooktop.

Now that you are armed with the information, we are positive that you will have no qualms to select the right size for your chimney.

With that being said, should you have any questions or doubts — feel free to drop them in the comment box below. We would get back to you as soon as possible.

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