Embed This Product
Copy Code

Last updated: November 10, 2020

How To Reduce Kitchen Exhaust Fan Noise

By Herbert Dorman

Are you looking for how to reduce kitchen exhaust fan noise? Then look no other than a kitchen exhaust fan. The device is above the stovetop eliminating cooking byproducts from the kitchen. The byproducts include smoke, heat, steam, poisonous gases, and rogue spices. Apart from keeping your home clean, the device provides safety measures. It has an inbuilt fire suppression device that vents and extinguishes fires. 

Therefore, having a kitchen exhaust fan protects the cook and the people in the surrounding. Accumulation of dirt, loose connection of the vent, power failure, or dripping moisture may result in noise from the exhaust fan. Taking action is the best choice to avoid the device’s breakage, resulting in high expenditure on a new appliance.


Steps of fixing a noisy kitchen exhaust fan


Identifying the problem

Working on the noise needs you to know the cause and where it is coming from. You should switch on the fan and listen closely to understand what is causing the noise.


Switch off the exhaust fan and try to tighten the loose screws

Loose screws may result in noise in the exhaust fan. Opening the cover to access the device helps the user see if there are loose screws in the exhaust fan. The user should not also forget to tighten the screws on the cover. Loose installation screws mounting the device to the wall, and the cabinet may bring about noise too. Therefore, the user should ensure that they are tight before testing on the device. After ensuring that all screws are tight, switch on the device and listen as the exhaust fan speeds up to know whether the noise is constant or at intervals.


Check whether the noise persists

The persistence of the noise calls for the user to take further action. In case the noise is persistent, unscrew the vent cover gently to have full access to the interior of the device and the exhaust hood. Ensuring that the screws are in a safe place is essential since putting back the cover needs you to use them.

Steps of fixing a noisy kitchen exhaust fan

Unmount the fan for further examination

After unscrewing the cover, unmount the exhaust fan by removing the screws attached to the wall. Take off the fan gently and examine if there are significant issues. The exhaust fan sucks out debris and grease from the kitchen, which may cause clogging of the blades. Clogging on the blades results in an imbalance, causing rattling and shaking. Therefore, you must get rid of the clogs using a clean cloth and a toothbrush. Earlier cleaning can make the user tamper with the fan, causing a misalignment resulting in a squeaking noise.

Thanks to Sam for making this video tutorial. 



Calling a technician

 If the problem persists, it means that the device needs a more in-depth diagnosis. Therefore, the problem may be beyond the user’s capability, and a professional technician is the best to carry out the diagnosis. Aspects to consider when diagnosing the cause of the noise:

  • Size of the fan

A small fan may find it hard to cope with the air passing through the blades, causing the noise. Additionally, worn-out bearings may result in noise in the exhaust fan. Ball-bearing shafts are the best choice because they are quieter and do not wear out quickly.

  • The fan blades

If the fan blades are loose and do not perfectly fit in the housing grille, noise may result. The user should ensure the blades are not loose and do not hit the sides of the grille. If they are wobbling or hitting the sides, noise may result, and tightening may stop the noise. Additionally, the type of fan blades may cause noise. Curved blades cut through airless medium-well resulting in less noise. Straight or angled edges cause more air movement resulting in noise.

If the noise results from the exhaust fan structure, the user must consider purchasing a fan that meets the description of a silent fan. The user must make sure the device fits well in the metal house. When mounting the device, make sure you tighten the screws, including those on the vent cover, before turning on the device. The fan should be quieter and working efficiently.


Benefits Of A Kitchen Exhaust Fan


Improves air quality

A kitchen exhaust fan eliminates any hazardous gas that pollutes the air when cooking. Therefore, they coat the walls, or the chef inhales them. Kitchen exhaust fans get rid of the impure products making the air fresh and clean.


Ensure health safety

Household cooking results in the production of carbon monoxide gas. The gas is harmful because it may result in flu-like symptoms, especially without proper ventilation. Exposure to the poisonous gas results in the death of the victim. A kitchen exhauster fan caters to the Cook’s health by getting rid of carbon monoxide gas. Additionally, getting rid of waste materials like deadly pollutants keeps the kitchen clean. Therefore, the surrounding and anyone in the household is safe from health issues resulting from hazardous and irritating waste.


Reduces excess heat

Cooking gives off excess heat as well as smoke and steam. The extra heat causes discomfort to the cook. Kitchen exhaust fans ensure relief and comfort to the cook and protect the kitchen by cooling the atmosphere. Additionally, the cooking process is comfortable and enjoyable because the smoke’s stiffness and unpleasant smells are absent.


How The Kitchen Exhaust Fan Works

A kitchen exhaust filters out poisonous gases that result from the cooking process. After turning on, the device sucks up any steam and gas given off when you are cooking. Honeycomb filters trap large particles while the rest flows out through the exhaust duct. If the exhaust fan is ductless, they recirculate air back to the kitchen after filtering instead of disposing it outside. For a ducted exhaust fan, the filter is usually a standard honeycomb. In a ductless exhaust fan, the filter is made out of paper and charcoal to speed up the filtration process. Therefore, the purified air gets back to the kitchen faster.


Final Thought

A kitchen exhaust fan ensures the comfortability of the cook. Cooking may be uneasy with smoke and excess heat all over the place, but a kitchen exhaust fan cleans up the air. In cases where complete combustion does not occur, the device soaks up carbon monoxide, hazardous. A clean kitchen is pleasurable and impressive. Therefore, even when considering a home for resale, the state of the kitchen matters. Clotting that results from smoke and gas given off when cooking changes the appearance of kitchen walls. With a kitchen exhaust fan, the kitchen looks new for a long time and attracts interested buyers. Visiting our websites will provide detailed information on how to reduce kitchen exhaust fan noise.