Try blowing out a lighted candle from three feet away with a straw. Then try to blow out the candle as you normally would, with pursed lips. The first method almost surely will fail; the second way should bring success. A great set of lungs is useless against the candle until enough force and volume can be exerted.
In the same way, an incorrectly sized duct system can render your home’s cooling system ineffective. You might have a great air conditioner, but if your ducts can’t deliver the appropriate airflow, you have a problem. Some homes have been constructed with poorly sized ducts. Others have been built with appropriate ductwork — but rooms or sections were added later, and the duct system became too small to serve the interior space.
For air ducts and your A/C to work at maximum efficiency, the duct system must be properly sized to the home and the equipment. Otherwise, you’re left with too little airflow to circulate properly. This affects the comfort of your home and how well your filter operates to keep your indoor air clean. It also affects your energy bills by making your system work harder.
If you suspect that your airflow is less than it should be or that your energy bills are needlessly high — or if your air conditioner seems to be constantly running — the problem could be the size of your ducts. Here in Southwest Florida, the professionals at Conditioned Air have the equipment, the experience and the knowledge to properly size air ducts. As always, please feel free to consult us with any questions.
Our goal is to help educate our customers about energy and home comfort issues (specific to HVAC systems). For more information about air ducts and other HVAC topics, click here to download our free Home Comfort Resource guide.