When it comes to installing a cold air return there are a few things that you need to consider. If doing it by yourself, it is important not to install the cold air return in a couple of places.
1. Near Appliances
When you are thinking about where to install your cold air return, you want to make sure that you know the layout of the room. If you are building your home, be sure that you locate where the appliances will be so that you do not block the cold air return with them. This is especially true in the kitchen and bathroom where space may be limited, and the design may be a little restricted.
2. Too High Up
You want to make sure that you keep the cold air return down low to the ground. Many people also say that you should keep them in the center rooms of the home and the hot air near the edges. If at all possible, make sure that they are in every room of the home so that you have a proper heating and cooling system.
While it is great to do this project by yourself, you should also make sure to consult with a professional to check for any code regulations you may need to be aware of.