Calculate the Suction Power of a Chimney and its Capacity?

Kitchen chimneys have become a go-to over the last couple of years. Not only do they provide the joy of comfort, but also add to the aesthetics of the kitchen by giving a sleek and fresh look.

The capacity of a kitchen chimney is measured in terms of suction power, the higher the suction power, the better the chimney is at removing fumes and smoke from the kitchen.

Calculate the Suction Power of the Chimney:

How to Calculate the Suction Power of a Chimney and its Capacity

The chimney suction power depends on how spacious your kitchen is. As we know that the kitchen chimney has to fill the kitchen ten times in an hour, which means we must calculate the kitchen volume

It is mandatory to know the measurement lengths, widths and heights of your kitchen which should be multiplied by each other.

At the end multiply the resulting volume by ten, and you get the required chimney suction power for your kitchen.

Factors That Affects Suction Power:

Suction power measures how much air will the chimney be able to suck and throw out of the kitchen. It is measured in meter cubes per hour. The factors that affect suction power are listed below-

  • Duct size- The size of the duct varies with homes, as may have longer ducts while others may have shorter ducts. As we know the size differs, and it will impact the suction power as well depending on the amount of power required to suck heat/smoke and particles out from the home.
  • Food preparation style- You may be surprised to know that the suction power of the kitchen hood for non-vegetarians is higher than for vegetarians. The reason behind this statement is that non-vegetarian food releases more aroma, and higher suction power is required to get rid of it.
  • Design and duct size- The design and size of the chimney play a major role in deciding the suction power of the chimney. They are available in straight line style or decorative style.
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Tips to Enhance Chimney Suction Power:

The following tips can enhance Chimney Suction Power-

  • The kitchen chimney with a wide filter area has better suction power.
  • A baffle filter is more advisable than a cassette filter for better chimney suction power improvement. Oil and grease stuck on the baffle filter do not affect the chimney suction power.

Disadvantages of High Suction Power Chimney:

However, high suction power chimneys come with some disadvantages as well :-

  • Chimneys with high suction power tend to make a lot of noise.
  • High-suction power chimneys consume more power.
  • They are also more expensive than normal chimneys.


How much suction power is good for a kitchen chimney?

The suction power of a chimney is measured in cubic meters per hour and should lie anywhere between 450 m3/hr – 950 m3/hr depending upon the size of your kitchen and the length of ducts.

Which chimney has the best suction?

Faber Chimney has the best suction as it comes with a suction power of 1095m3/h which helps to cook food easily and peacefully.


As we know kitchen chimneys have become a trend in the modern kitchen, it is mandatory to know about the actions that go into the maintenance of these chimneys and how they work. The suction power of kitchen chimneys is one of the most important factors to consider while purchasing one.

A chimney’s size is measured in terms of how much air it can move, or its “capacity.” To find out how much air a chimney can move in an hour, you multiply its width by its height by its depth.

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