What is return air in HVAC?

Related questions

1. How do I know what size flex duct I need?
2. Where should HVAC vents be placed?
3. What is duct pipe?
4. Is it OK to cover air vents?
5. How long does flex duct last?
6. How do you calculate return air flow?
7. Can PVC pipe be used for HVAC duct?
8. How do you calculate HVAC duct size?
9. What is PVC duct?
10. What is duct sealing?

Tags

1. #rooms
2. #allows
3. #grill
4. #cooling
5. #system
6. #return
7. #though
8. #connects
9. #spaces
10. #heating
11. #pushed
12. #through
13. #essential
14. #every
15. #ductwork
16. #ducts
17. #being