If there is no other access you may be able to cut in another grille in the back or side of the return cavity.
Hvac return grille noise.
There is a fixed bar type grille and a stamped face grille.
Some return grille noise is caused by the filters used.
Switching them out for high velocity alternatives can allow more airflow and lower static pressure.
Some systems are much louder than others.
If the vent or grille is adjustable switch it to the most open position available to maximize airflow.
Sometimes the type of registers and grilles you have are to blame for the loud air noise.
Upgrade to a variable speed blower.
Another way to decrease airflow noise.
Some systems are louder than others.
1 open all the vents.
Noisy air vents high pitched noise.
A high flow return grille or fixed bar return grille is type of return grille that is much more aerodynamic than a stamped face return grille.
There are two types of return filter grilles that are used in residential homes.
More restrictive air filters the noise from the air being pulled in increased dramatically to the point of being annoying.
All air vents meaning supply registers ceiling diffusers floor vents and return grilles make some noise when the system fan is running.
In my home the air filters are located just inside of the two large return air registers.
Often return noise is caused by air moving equipment located in a hallway and where the return duct system is an open building cavity with a return grille screwed to it.
When i installed better i e.
15 75w x 25 75h 4 7 out of 5 stars 185 39 99 39.
Replace existing registers and grilles with high velocity models.
14 x 24 steel return air filter grille for 1 filter removable face door hvac duct cover flat stamped face white outer dimensions.