Your heating system depends on more than just the furnace to keep your home comfortable. One of the most important—but often overlooked—parts of the system is the return air duct. While supply vents push warm air into your home, return ducts pull air back to the furnace so it can be reheated and circulated again.
When return air ducts are not working properly, your heating system may struggle to maintain consistent comfort. Understanding how these ducts work and recognizing possible issues can help keep your system operating efficiently.









