Everything You Need To Know About Buying A Range Hood

Buying a range hood for your kitchen? Here is everything you need to know.

Over the years, we have had a lot of different range hoods questions come up at World CopperSmith. This article was created to put an end to the most common project stoppers regarding decorative ventilation. So, if you’re buying a range hood and looking to find Kitchen Nirvana, take a few minutes and read our informative article that should tell you everything you need to know about buying a range hood.

How high above the cook top should your range be?

range hood info

Range Hood Max Height?

The maximum recommended Range hood height is 36″ off the cook top to function properly.


Range hoods heights

Considering most cook tops are 36″ in height, even if you maxed out most insert fan manufacturers recommendations of 36″ over the cooktop, you would still be at six feet to the bottom of the hood. The secret to making sure your range hood is not on obstruction in the kitchen is the range hood depth, not height. Elect for a range hood depth that is the same or less than your cooktop depth.

range hood heights      Make sure your range hood is shallower than your stove.


How does the height of the range hood effect performance?


proper range hood height

Proper range hood height pictured above.

range hood installation

This range hood is too high up, and to catch the grease, it would need a bigger canopy. Most insert fan manufacturers tell you what is optimal for their range hoods. We find that 30″ above the cooktop is a good all-around place to start. If you want to go higher, just remember that the smoke and grease will cover a larger area as it rises. You may want to consider going 3″ inches bigger on each side. This also seems to be especially true for island range hoods. 

How wide should my range hood be?

range hood width

We get this question all the time. If your stove is 30″ wide, your range hood can be anywhere from 30″-36″ wide.  Stay in this range, and your kitchen will look and perform perfectly!

How tall should my range hood be?

ceiling height

Do I have to go all the way to the ceiling?

Short Answer, No.

Long answer – click here, and here, to compare people who did and didn’t. But for those of you who don’t want to go to the ceiling, below is your formula.

range hood height1

How much CFM do I need?

CFM stands for cubic feet per minute.

Standard ventilation systems are 100-400 CFM. This works for customers looking for an average system, and plan to do little to no cooking. They also are compatible with recirculating range hoods.

400-1000 CFM is a semi-professional grade.

Over 100 CFM are considered professional grade and for serious home chefs, outdoor BBQ settings and commercial application. Large CFMs may require makeup air, so you will need to check with your contractor.

Now that you are a range hood expert, check out our range hoods and customize your own. You can select your width, height, and depth, along with your ventilation system (insert fan) size. If you have further questions about buying a custom range hood, feel free to contact us.