The Science of Comfort

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GRD in Real Life

Posted by Ryan Johnson on November 12, 2025 at 9:00 AM

Cool Tips and Hot Takes for Air Distribution Design

At Price, we pride ourselves on our contributions to The Science of Comfort™ (we have the phrase trademarked, after all). If you’re a regular reader of the blog, you’ll understand the rigorous testing and research behind all the air distribution solutions we manufacture. Our team at Price Research Center North (PRCN) in Winnipeg, MB, is accustomed to maintaining the highest test standards and methodologies behind the data published in our catalog.

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Topics: GRD, Diffusers, ASHRAE 70, Inlet Effect, Grilles, Static Pressure, Pressure Drop, Inlet Conditions, Mock-Up, HVAC, Engineering, Design Engineering, Tech Tip

What is Inlet Effect?

Posted by Price Industries on August 27, 2019 at 9:57 AM

Inlet Effects 

ASHRAE Standard 70 guidelines are in place so that ideal conditions are present during GRD testing
and to ensure the testing is repeatable. It is important to note that the performance
published in the Price catalog is based on these ideal conditions outlined in ASHRAE 70 and that
any field modifications can affect the performance of the outlet. There are five common field conditions and their influence on the air pattern of a given diffuser:
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Topics: GRD, Diffusers, ASHRAE 70, Inlet Effect, Grilles

At Price, when we say “the sky is the limit,” we actually mean it.

Our customers have come to count on a consistent and ever-increasing stream of new products and enhancements.  Price has a large team of experienced and talented engineers who are consistently working on breakthrough ideas.  We are not afraid to move into whole new product categories if we believe we have a contribution to make.

  • Research & Innovation
  • Technical Tours
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  • Custom Solutions & Specials
  • Custom Finishes
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