Asked by: Kendall Ikaza
asked in category: General Last Updated: 23rd January, 2020

How does make up air work?

WHAT IS MAKE-UP AIR? Make-up air is designed to “make up” the air in your interior space that has been removed due to process exhaust fans. This type of HVAC solution pulls in fresh, tempered air from outside your building to replace existing air that cannot be recirculated.

Click to see full answer.


Also know, how does a make up air unit work?

Simply stated, a make up air unit pulls air in to your space from outdoors and conditions it to the indoor temperature, to replace air that's pulled out by your kitchen exhaust equipment. Without it, you get back drafting, poor temperature control, negative air pressure and air quality problems.

Also, how much does make up air cost? [3] The automated Makeup Air System (MUAS) from Fantech includes an intake hood, shut-off damper, filter, fan, duct silencer, and optional heater; available models handle air flow up to 2,000 CFM.

Similarly, you may ask, what is the difference between outdoor air and make up air?

DIFFERENCES BETWEEN MAKE-UP AIR AND STANDARD VENTILATION Standard ventilation fans bring in the outside air “as is” without heating or tempering. With a make-up air unit, that same -10° F air can be tempered to 50° F.

Do I need make up air?

The real requirement is that makeup air must be provided if it's needed. If an exhaust fan rated over 300 cfm is installed, makeup air might be needed and a calculation will need to be done.

24 Related Question Answers Found

Where does fresh air come from?

What is fresh air in HVAC?

What is Mau in HVAC?


What is a fresh air unit?

Are restaurant kitchens air conditioned?

What are Air range hoods makeup?


What is a make up air damper?

What is meant by HVAC?

What is a direct fired makeup air unit?


Do I need make up air for my range hood?