Where do you put return air grille?
Where do you put return air grille?
Ducts for returning air are located at floor level or in the walls depending on the design of the system. These require to be covered by a grill that will ensure that duct is protected. It is considered very necessary to use filters over such grills, which in turn can lead to higher efficiency in cooling or heating.
What is the recommended face velocity for a return air filter grille?
Return Grille Sizing The speed of the air moving through of a return grille should typically be kept in the 300 FPM (Feet per Minute) to 500 FPM range to reduce noise through the grille. It’s easy to hear a grille that exceeds this velocity range as it is usually accompanied by an irritating level of noise.
Should I put a filter in my air return?
In general, it is recommended to have an air filter in every return vent (as long as you choose the one of the right size and thickness). The filters will improve the air quality in your house and will protect the HVAC equipment from dust, pollen, pet dander, and hair.
How many return air vents are needed?
Your Home Might Not Have Enough Return Vents Having several return vents (ideally one in every room, but even two or three is better than just one) creates consistent air pressure. If you have one return vent, your home is fine. Keep the doors to each room open so air can properly circulate.
Should return air vents be high or low?
For optimal efficiency, it’s ideal to have return registers installed. To ensure efficiency during the cooling season, your home should have high registers. High return registers draw hot air that rises to the ceiling back into the system to repeat the cooling cycle.
How big should my return air duct be?
Generally, if you are using a Duct Sizing Chart or calculator (such as the Trane Ductulator), size the re- turn ducts for 0.05 inches/100 ft (0.40 Pa/m) based on the expected airflow through that return air duct. The total sum of air from all the returns should be at least 250 CFM/nominal ton (33 l/s per-kW).