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AC Performance In Extreme Heat

desert
Central air conditioning systems are designed to suit the size of your home and the amount of air it needs to cool or heat. The size of the specific AC unit, the condenser, is chosen to be efficient for 98% of the typical high temperatures in your area (climate). So for that 2% extreme, like we are having this summer in Palm Desert and Palm Springs, your AC system may actually be undersized. But this is by design. Otherwise, if you went with a larger system that had no trouble pumping the volumes of cool air needed during these extremely hot days, your system would be quite inefficient 98% of the time. And that’s really, almost all the time – not a good thing.

The larger system costs more to install and it consumes more energy to run, all costing you more money. Because it pumps more air volume it cools the house much faster. You might think this was a good thing but instead it means the system is running through off and on cycles at a much higher rate. The shorter cooling cycles means it is not quite running long enough to be pulling humidity out of your home. Removing humidity is part of how an air conditioner works. The condensing coil condenses water out of the air and the heat exchange process during that activity is what creates the cooler air. Warmer air and moisture is then exited from your home. Dryer air, even when warmer, is more comfortable for the human body as it allows our own biological air conditioner, our sweat, to be more efficient. Not removing sufficient humidity from your home could also lead to mold problems.

These are some of the reasons an over-sized AC system is just an all around bad idea. But you can still make the system you have work for you in these 100+ degree conditions.

Getting More Efficiency Out of Your AC System

To make it easier for your AC system to reliably pump out cool air when it’s over 100 degrees outside you need to give it some help.

In a nutshell it comes down to reducing heat gains in the home. Some of the basics are;

Anything you can do to keep the house stay cooler, even a little bit, means the AC does not need to be running as long for each cooling cycle.

AC Maintenance is Key!

Your central air system should be getting a maintenance check-up at least once a year. Ideally the AC unit should be checked before peak demand during Palm Desert's summer heat, to ensure it’s running at its best when you need it most. It will be running hard through these multiple 100+ degrees days and may even need a check-up later on after all that heavy use.

Call NexGen HVAC & Plumbing

Our expertise and commitment to customer satisfaction make us the leading HVAC company in Southern California. To learn more about our equipment, services, and protection plan, book an appointment online or call 888-277-0415.

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