What is a Commercial Kitchen Hood System?

What is a Commercial Kitchen Hood System?

Exhaust hood systems play an important role in the restaurant kitchen, pulling heat, smoke, and odor away from cooking surfaces. Hoods shall be Type I or Type II and shall be designed to capture and confine cooking vapors and residues. A Type I or Type II hood shall be installed at or above all commercial cooking appliances. Where any cooking appliance under a single hood requires a Type I hood, a Type I hood shall be installed. Where a Type II hood is required, a Type I or Type II hood shall be installed. There are certain requirements that need to be met for both. Commercial kitchen exhaust hood systems shall operate during the cooking operation. The hood exhaust rate shall comply with the listing of the hood. The exhaust fan serving a Type I Hood shall have automatic controls that will activate the fan when any appliance that requires such Type I Hood is turned on, or a means of interlock shall be provided that will prevent operation of such appliance when the exhaust fan is not turned on.


Type I hoods shall be installed where cooking appliances produce grease or smoke as a result of the cooking process. Type I hoods shall be installed over medium-duty, heavy-duty and extra-heavy-duty cooking appliances.

Type II hoods shall be installed above dishwashers and appliances that produce heat or moisture and do not produce grease or smoke as a result of the cooking process.


What you need to know about Commercial Kitchen Hood System


Watch out for changes in motor fan speed- In most cases and for most models, the motor will require little to no maintenance, however some of the bearings can become stiff over time due to consistent exposure to grease, humidity and heat, so you may have to replace them every once in a while. The blower wheel can also become dirty and greasy, and it could cause the fan to start to slow down or even vibrate in some cases. Clean the fan motor and the blower –if the fan is still vibrating or working slowly, the fan motor will need to be replaced.


Get prompt repairs- When something stops working as it should, don’t just ignore it! Get it repaired promptly to stop the problem in its tracks. You should also read your model’s manual, so that you can be aware of any common problems associated with it. This will help you to know exactly what to watch out for and how to fix it if it comes up.


How to maintain and keep your Commercial Kitchen Hood System in good condition


Restaurant exhaust hoods keep the air clean and safe to breathe, and they also keep kitchen odors from overpowering your restaurant.

  • Clean it regularly – The very best way to keep your exhaust fan in good working order is to keep it clean. Keeping all of the grime and grease at bay will allow everything to work as it should.
  • Keep filters clean- It is amazing how many people will overlook their filters when they clean out their exhaust fans. The filter is what traps airborne grease and oil, so it is absolutely necessary to keep it clean. The good news is that you don’t even need all that much elbow grease to get the job done. All you have to do is soak the filters overnight in soapy water!
  • Check the vent- Many commercial kitchen exhaust hoods have vents that lead to the outside, and these vents are a popular place for grease to build up. If you don’t keep your vents clean, you could be at risk for a grease fire, so it is important to check them regularly and keep them clean.

Regular maintenance is the best way to keep your restaurant hood working like new for as long as possible.

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