How to Size Return Air Grilles?

Return air grille is an essential piece of equipment in HVAC. However, when you want to buy a new return air grille, you'll often find that the airflow of the grille is not specified. So, how do you know what size of return air grille you should buy? In this video, I'll share with you how we size return air grilles.

About the creator:
Yu has 10 years of experience in HVAC. He used to design, execute installation, manage projects, troubleshoot and maintain HVAC systems. Now, he is focusing on creating contents that can help homeowners and engineers to solve their HVAC problems.

[mohdkhaled]

Hi sir, You are an OG of HVAC I'm working as Hvac design engineer for last 3 years, you are my inspiration to be in design field, and I really value your knowledge of Hvac in design, Thank you so much sir, looking forward for such videos (I want Kitchen Ecology unit, make up air unit calculations)

[lendssadiasa]

Best video😊, hoping you can upload more videos about hvac design

[BigSemmie]

Good Morning, at the end of your presentation on grills you commented on dealing with noise from air handlers at the grill, which of presentations were you referring to. Thank you

[whitefalcon]

Amazing video. I'm not even in HVAC and I used it to calculate a decorative grill size. I'm pushing the 800 fpm limit. Other than noise, is there a risk of my decorative cover blocking too much air to the unit?