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06 October, 2016

My AC is under warranty, can anyone service it?

If your AC system is under a parts warranty, almost any licensed HVAC contractor can maintain it...

01 September, 2016

Important AC tip before buying your new home

There is a very common scenario that we run across with new home buyers. They just purchased an...

22 July, 2016

Which air filters should I use?

At the store you can find standard inexpensive filters, expensive filters designed for allergy...

22 July, 2016

What size air conditioner should I have in my home?

The size, or cooling capacity, of your air conditioning system is important in Florida. If your...

15 July, 2016

Wall Returns

In the past, a common way to return air back to the air conditioning system was to use the wall...

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Wall Return

Wall Returns

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In the past, a common way to return air back to the air conditioning system was to use the wall cavity. An intake register would be placed near the floor and the air would travel between the studs and drywall up into the attic where a duct would take the air the rest of the way. The wall cavity is not complete sealed and you end up with the following:

  1. Dust and debris – Dust and debris is pulled into the air system from inside the walls and attic, and will come out of the supply air vents or get stuck in the air conditioner (See attached picture). Also because the intake is low to the ground it tends to pull in more dust and debris which would have otherwise settled on the ground and been cleaned up by a vacuum or floor cleaner.
  2. Increased humidity – Humidity is pulled in through the walls and attic. It cycles through the air conditioning system and is introduced into the home.
  3. Inefficiency – Wall returns are typically not large enough to handle the amount of air needed to cycle through the air conditioning system and will restrict air flow. When an air conditioning system is not providing its full cooling capacity it will run longer. Also, wall returns typically heat the air being returned back to the air conditioning system which is counterproductive and also causes the system to run longer. The added run time on your air conditioning system will add $$ to your utility bills.

The best thing to do is use ceiling returns in place of wall returns to see the benefits of clean air, lower humidity, and reduced utility bills.



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