There are many parts of our homes’ cooling system that gets less attention, however they are equally as critical as other components. A good example is the air grille. They are responsible for distributing conditioned air in various parts of the house. The air grille covers the openings in ductwork or other spaces for returning air to the heating or cooling system. These frillwork covered openings allow air to return to the system. These air grille are available in different designs, and you can invest in decorative air grille to match up the style quotienet of your room.

Through the use of ducts, air is pushed into the rooms and spaces of any cooling or heating system. This increased air pressure eventually prevents further air from entering the conditioned area unless a system of circulating air is used. Decorative return air grille and has a filter to trap particulate matter, so it will ensure that the air recirculated is substantially purer. The grill can also act as a regulator of airflow.

Decorative Return Air Grille

How to install the decorative return air grille?

One reason to have return vents in every room is to achieve neutral pressure in your house more easily. For another, there is a research study that shows that having more return vents in your house will reduce energy costs.

A room’s supply registers should be located near the return air grille so that the HVAC system’s output equals the output of your return air vents. In addition, the decorative return air return grille in every room make cooling your home more efficient and effective since they allow easy air circulation between the cooling system and each room.

How to maintain the decorative return air grille?

As part of your maintenance routine, you should clean you’re the  air grille periodically. This is because dirt and debris can easily collect on the grilles as they leave a room. You should also make sure air can flow freely through the return air grille so dirt does not build up on the air filter.

If there is any large furniture or other obstruction that could block your decorative air return grilles, make sure that they are away from them.

How to size the perfect decorative return air grille?

In many cases, duct system issues are due to problems with the return side. Grilles attached to return duct systems are also typically undersized, like most return duct systems.

In order to reduce noise through an air grille, you can keep the air moving through at a speed of 300 to 500 FPM (Feet per Minute). This noise usually occurs in the form of a hum or whistle from the HVAC system whenever the fan runs. If you want to measure the speed of the air that moves through the air grille, then you would need a handheld anemometer.

Decorative Return Air Grille

For size information on filter grilles, check the engineering data for the decorative return air grille you are considering. You should find a CFM value that is comparable or slightly higher than 400 FPM in the 400 FPM column. This value will be what you need in terms of filter grille size. When engineering data is unavailable, one can approximate the air grille area in square inches by multiplying it by 2 CFM per square inch. As a result, the filter grille’s face velocity should not exceed 400 feet per minute (FPM).


We hope with this article you have the basic idea about decorative return air grille and for further information you can always get in touch with a supplier or a manufacturer.


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