How many CFM do I need for range hood?

Asked By: Audie Hillman | Last Updated: 29th April, 2020
Category: home and garden home appliances
4/5 (45 Views . 22 Votes)
A range hood fan should move a minimum of 100 CFM of air for every 12 inches of stove width. This means that if you have a stove that is 30 inches wide then you need a range hood with a fan that rotates at least 250 CFM of air.

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People also ask, is 400 CFM range hood enough?

The basic rule of thumb is that the burners on a gas range/cooktop produce a lot more heat than those on an electric range or cooktop. Then divide by 100 to find the minimum CFM needed for a kitchen with a gas range or cooktop. For example: 40,000 BTU gas range divided by 100 = 400 CFM range hood fan or higher.

Secondly, is 900 cfm enough for range hood? If your ducting matches your ventilation power, your range hood will do its job properly and quietly. A good rule of thumb for estimating ducting diameter-CFM requirements is: 6” to 8” duct = 400 to 600 CFM. 7” to 10” duct = 700 to 900 CFM.

Regarding this, is 300 cfm enough for range hood?

The HVI recommends taking a stove's BTU rating and dividing it by 100 to find a minimum level. For example, a stove with a 30,000 BTU rating would require a kitchen hood with a capacity of at least 300 CFM. A kitchen range hood should be able to cycle the air out of the entire kitchen 15 times per hour.

Which brand of range hood is best?

So here is my list of The 10 Best Range Hoods.

  1. Broan 413004 Stainless Steel Range Hood.
  2. BV Stainless Steel 30" Range Hood.
  3. Chef 30” PS18 Range Hood.
  4. FOTILE JQG7501 Range Hood.
  5. Chef Range Hood C190 Range Hood.
  6. Broan F403004 Stainless Steel Range Hood.
  7. Winflo Glass and Stainless Steel Range Hood.

26 Related Question Answers Found

Which range hood is best for Chinese cooking?

Top 10 Best Range Hoods
MODEL OUR RATING
Cavaliere SV218B2-30 Wall Mount Range Hood with 900 CFM in Stainless Steel (10 / 10)
Golden Vantage 30" Island Mount Stainless Steel Powerful Cooking Vents Kitchen Fan LED Display Touch Control Range Hood (8.8 / 10)
Broan QS130SS Allure Range Hood, Stainless Steel, 30-inch (9 / 10)

What is the quietest range hood?

Comparison For Best Ultra Quiet Range Hood
PRODUCT NOISE IN DB/Sones CFM
ZLINE KB-36 KB 36 in. Range Hood 56 dB 760 CFM
Cosmo 5MU30 30-in Under-Cabinet Range Hood 56 dB 200 CFM
AKDY 36" Wall Mount Range Hood 65db 400 CFM
FIREBIRD Stainless Steel 36" Euro Style Island Mount Range Hood 65db 299 CFM

How large should range hood be?

Range Hood Ventilation
The new hood should be at least as wide as the range or cooktop and preferably 3 inches longer on each side. The most common widths are 30 and 36 inches. For optimal performance, install a hood between 20 and 24 inches away from an electric cooktop and 24 to 30 inches from a gas cooktop.

Can flexible duct be used for range hood?

According to IRC, the duct must be made from galvanized steel, stainless steel or copper. It must have a smooth interior, and be air tight. Which means you're not going to want to use a flexible product for this application, especially that flexible plastic crap. Instead, you'll want to use rigid duct like this.

What is the minimum duct size for a range hood?


What is the minimum size for a kitchen range hood duct? The minimum allowed duct size is 3¼" x 10", or 6" diameter for round ducts. Never use a plastic duct or one that is smaller than the size specified for the hood as this will directly affect the hood's performance.

How many amps does a range hood draw?

Vent Hood Electrical Requirements and Breaker Size. Vent hood electrical requirements: Requires a 120 volt individual, properly grounded branch circuit with a 3 prong grounding type receptacle, protected by a 15 or 20 amp circuit breaker or time-delay fuse. Wiring must be 2 wire with ground.

What should I look for when buying a range hood?

These are some range hood features to consider.
  • Airflow. Manufacturers tout the cubic feet per minute (CFM) of exhausted air.
  • Number of Fan Speeds. Most of the hoods we tested offered from three to six fan speeds.
  • Thermostat Control.
  • Exhaust Timer.

Is 250 cfm enough for range hood?

If the range hood is attached to a wall, you should have 100 cubic feet per minute(cfm) per linear foot. So if you have a 30" wide range, you should have a hood rated at 250 cfm ((30/12)*100 =250). If the hood is over an island, you'll use 150 cfm/linear foot.

Is 350 cfm enough for range hood?

The general rule is that you should have 1 CFM of ventilation per 100 British thermal units (BTU) of a gas range. It's recommended that if you do a lot of cooking that generates strong odors or steam, your hood should be rated for at least 350 CFM.

What size range hood do I need for a 30 range?


For example, if your cooktop size is 30”, the ideal hood size is 36” or larger. OUTDOOR: Hoods used for grilling outdoors should be 2 sizes larger than the cooking surface (overlapping the cooktop by 6 to 12 inches on each side). For example, if your cooktop is 30”, the ideal hood is 42” – 54”.

How long can a range hood vent be?

For optimum performance, make sure that the air duct is short and straight, with a maximum length of 50 linear feet. Long radius elbows are preferred to short radius elbows for better air intake. Note: Each elbow is equivalent to 10 linear feet of duct. Be sure to also install a wall or roof cap.

Who makes the best under cabinet range hood?

Top 10 Best Under Cabinet Range Hood Reviews:
  1. Chef 30” PS18 Under Cabinet Range Hood.
  2. BV 30″ Under Cabinet Range Hood.
  3. Proline Wall Undercabinet Range Hood.
  4. Broan 413604 ADA Capable- Non-Ducted Under-Cabinet Range Hood.
  5. BV Stainless Steel 30” -Under Cabinet High Airflow (800 CFM)
  6. Broan 403004 30 In.

Is a vent hood required for a gas range?

Gas ranges do not necessary require venting as much as electric ranges because they burn relatively clean. However, keep in mind that ventilation is used to remove heat, smoke, steam, and grease – plus the byproducts of burning gas.

How many CFM do I need for 1000 square feet?

Heat and energy recovery ventilators
Total area of home (square feet) Continuous ventilation rate
1,000 square feet 50 CFM
2,000 square feet 100 CFM
3,000 square feet 150 CFM

What does 4 CFM mean?


CFM (more commonly written as cfm or acfm for average cfm) is a measure of the flow rate of air pushed out by a compressor. It stands for cubic feet (per) minute./ This is important because it directly relates to the suitability of a compressor for a given application.

What is the maximum height for a range hood?

What is the maximum height for a range hood? There is no set maximum height per law, every manufacturer suggests a maximum height and you should stay within this range, typically up to 24 inches for electric stoves and 30 inches for gas stoves.

Is Vent A Hood worth the money?

Vent-A-Hood Professional. If you are looking for a hood that will keep your kitchen free of cooking fumes, make the indoors look neat and spectacular and customizable when the need arises, the PRH-36 model from Vent-A-Hood is an option worth considering. That is enough for most kitchen stove sets at home.