https://www.hunker.com/12403383/the-location-of-cold-air-return-vents

Every building that uses forced hot air for heating will have cold air return vents. ... The cooler air is forced into the return vent back to the furnace where it is ...

https://www.askthebuilder.com/hvac-return-air-ducting/

AsktheBuilder.com: HVAC ductwork sizing is critical for proper heating and ... hot in hot weather or are cold in cold weather you could have a return-air duct issue. .... join together in one central location that permits you to run a duct down to the ...

https://modernize.com/home-ideas/33872/install-return-registers-best-hvac-performance

Where do you need the heating and cooling expert? Please enter a ... Your unit's ducts push heated or cooled air into a room—that's the “supply” part. But they ...

https://www.diynetwork.com/how-to/skills-and-know-how/electrical-and-wiring/hvac-install-an-air-supply-line-and-a-cold-air-return

He demonstrates how to add an air-supply line and a cold air return. ... need a load calculation to make sure the furnace is large enough to supply the new room . You can get it online from companies like DuctWork or go to local HVAC pros to  ...

https://www.youtube.com/watch?v=vIgU3mNvdNg

Jun 22, 2016 ... Coach Tim explains heat runs and cold air returns to the furnace ... a fan draws air from the house into the system through return air vents.

https://homeenergypros.org/profiles/blogs/return-air-locations

Nov 17, 2012 ... For heating only applications, a low return duct is ideal to bring back the ... This is true regardless of the supply register location, floor or ceiling. ... in the heating heating season the cold air remains low and relatively stagnant.

https://www.greenbuildingadvisor.com/question/return-air-vents-high-or-low

Jan 17, 2011 ... He installed the return air vents in the wall cavity ,but they are only 1 inch ... However in one location there is a heat duct within 5 feet of the return air vent ... a LifeBreath with hydronic heating and fresh heated air outlets under ...

http://www.detmersons.com/return-air-ducts/

Mar 3, 2016 ... Starting with the creation of cool or warm air in the actual furnace, air ... Placement and design of return air ducts and vents is a crucial factor in ...

https://www.energyvanguard.com/blog/45439/To-Heck-with-Duct-Design-Let-s-Just-Throw-the-Vents-Anywhere

Sep 14, 2011 ... hvac duct system installation airflow problem supply return proximity ... back to the furnace or air conditioner to be heated or cooled again.

http://heatcool2.com/blog/2018/05/17/hvac-vent-system-placement/

May 17, 2018 ... To help with flow and temperature control, HVAC professionals recommend that each room has a cold air return vent. These vents are ...