Get matched with top air conditioning pros in Ames, IA

The standard rule for return duct sizing is that the return vent should be the same size or larger than the supply vent. This will ensure balanced airflow in your home and reduce strain on your HVAC system.

While many states do not have specific licensing requirements for HVAC companies, your local city or county might. It's always a good idea to check local requirements online and use a tool like Angi’s contractor license lookup to confirm that the company you’re considering is licensed. Regardless of licensing, you should always ensure the company you hire is fully insured to avoid potential lawsuits if a technician is injured on your property. Additionally, it is recommended to check if the company holds third-party certifications, such as North American Technician Excellence (NATE) certification or R-410A certification, which qualifies them to work with HVAC refrigerants.

It depends on the size of the space you’re cooling down. If you’re looking for the most affordable way to cool an entire house over a long period of time, then central air will be more cost-effective. But when it comes to cooling down a couple of rooms or one floor, a window unit may be the cheaper option, with both a lower cost to install and less energy used to run.

To make the most out of your AC, consider implementing the following best practices: 

• Choose the right size AC for your home to ensure your unit runs as efficiently as possible.

• Choose a window with shade, as direct sunlight can cause your AC unit to overheat. 

• Clean or replace the filter at least every two months. 

• Inspect the AC’s fan and straighten it if necessary. 

• Discontinue use immediately if you suspect a malfunction, as running the AC while broken can lead to significant issues. 

• Turn off (or adjust the temperature) when you leave the house.