Home A/C Return Air

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07-01-2005, 09:34 AM
POS Racing

Home A/C Return Air

Last week I had my home A/C serviced, the guy cleaned up all the required items gave it a shot of Freon, and gave my system a clean bill of health. :thumleft:

But he said the return air on my system was a bit undersized, which could be causing my A/C to run more than it should, and he included a quote to increase the return air capability of my system for what seemed to be a reasonable, but I'd like to make sure.

Is anybody here a home A/C wizz? What is the formula for calculating return air for a home A/C system??

TIA
07-01-2005, 09:37 AM
Ataim

Give me a call and I can give you the number of my AC guy.

I'll pm you with number....

Paul
07-01-2005, 09:40 AM
onething

As big as the opening in the bottom of the air handler = filter size?
07-01-2005, 10:55 AM
sammm

Quote:

Originally Posted by POS Racing

he included a quote to increase the return air capability of my system for what seemed to be a reasonable, but I'd like to make sure.

Is it just a matter of adding another return vent(s)? Depending on where your blower is, all you may need is a keyhole saw and a vent-grill.
07-01-2005, 10:59 AM
POS Racing

Quote:

Originally Posted by sammm

Is it just a matter of adding another return vent(s)? Depending on where your blower is, all you may need is a keyhole saw and a vent.

He was actually talking about just increasing the size of the return we have in the ceiling. I'll have to look when I get home to see how much of an increase in size over what was already in place. I could do this myself, but I want to check his math before I pull out the implements of mass destruction. :batman:
07-01-2005, 02:40 PM
onething

Quote:

Originally Posted by POS Racing

He was actually talking about just increasing the size of the return we have in the ceiling. I'll have to look when I get home to see how much of an increase in size over what was already in place. I could do this myself, but I want to check his math before I pull out the implements of mass destruction. :batman:

That means increasing the size of the return air duct as well as wallerin out the hole in the ceilin to do any good. I got a Sawzall, and unlike Sammm's place, I've never been given the opportunity prowl around in your house yet ;-)
07-01-2005, 03:36 PM
Treibenschnell

Quote:

Originally Posted by onething

I've never been given the opportunity prowl around in your house yet ;-)

I smell a Tech Day a comin'!