If you are in a colder region you may be required by local code to install a Tempered Makeup Air Unit in your restaurant or commercial space. The whole purpose of a makeup air unit is to push the exhaust air out of the restaurant, and replace it with fresh, clean air from the outside. Replacing the inside air with clean air helps with ventilation issues and air quality, as well as removing grease, smoke, and cooking odors from the building. If your exhaust system is only pushing air out, and not replacing the exhausted air with a makeup air unit, you can also run into issues like unbalanced air pressure and issues with control of temperature and humidity.

 

On top of the air quality benefits of a makeup air unit it also helps regulate air pressure inside of the restaurant. Without a makeup air unit the pressure could make opening and closing doors more difficult due to what is referred to as negative air pressure. The units also help with preventing potentially dangerous back drafts around your kitchen’s cooking appliances. So why would you need a tempered, or heated, makeup air unit? Remember that makeup air units are exhausting out air from within the building, and replacing that air with fresh air from outside. If you are in a particularly colder region you would be replacing the temperature regulated air from in the building with the freezing air from outside. To offset the colder air from outside you would install a tempered makeup air unit thats acts as a heater in between the cold air being pulling from ...

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