Tag: make-up air supply

 

What is a make-up air fan and why should I install one?

A make-up air fan is a fan that supplies fresh air from the outside. They are also known as supply fans or make-up air units. The purpose of a make-up air fan is to replace an amount of air equal to the air you are are exhausting from inside of your kitchen, restaurant or food truck. Having a make-up air supply is typically required by law, but we’re going to give you even more really good reasons why you should have one. Here are our top ten reasons to install a make-up air fan.

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make up air supply unit
Your vent hood and exhaust fan are in place and now you’re ready to install your make-up air fan. If you’ve purchased our economy make-up air fan, here is what you need to know about correctly setting it up to replace your exhaust air.

Check Your Equipment

Before installing any new commercial kitchen equipment, you should always closely inspect the equipment both inside and out. Also confirm that all accessory items are damage free and accounted for. Continue reading →


Most of you already know how crucial make-up air supply is to your commercial kitchen ventilation system. (If you don’t, be sure to check out this article.) But people often overlook the importance of using high quality metal mesh air filters. Not only will they increase your system’s performance and energy efficiency, they will also extend the life of your fan and motor.

First, let’s take a quick look at the different types of metal mesh air filters we carry. Then, read on to find out more about the advantages each one has to offer.

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Make-Up Air Supply
In all types of buildings, air balance needs to be carefully controlled. The amount of air that goes out must also come back in. But full-service commercial kitchens cannot rely solely on their HVAC system to supply 100% of the replacement air they need, so an independent make-up air supply is needed.

Air that is removed from the kitchen through an exhaust hood must be replaced with an equal volume of replacement air. If there is not enough replacement air (or make-up air), the building pressure will become negative which can cause various problems such as reduced exhaust hood fan performance or grease and smoke spillage from the hood.

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