TL;DR
A return grille is the louvered cover over the opening where a forced-air system draws room air back toward the air handler, distinguishable from supply registers by its fixed blades and lack of a damper. Sizing matters more than looks: undersized openings raise blower static pressure, add noise, and starve airflow across the coil and heat exchanger.
What it means
A return grille is the louvered cover over the opening where a forced-air system draws room air back toward the air handler, distinguishable from supply registers by its fixed blades and lack of a damper. Sizing matters more than looks: undersized openings raise blower static pressure, add noise, and starve airflow across the coil and heat exchanger. Central versions on filter-at-the-equipment systems differ from filter grilles, which hold the media right behind the louvers.
Where it sits in the glossary
Return grille is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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