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The Right HVAC Unit for Your Home

A couple of months ago, the HVAC unit in my home started malfunctioning. The temperature inside my home soared to over eighty degrees Fahrenheit, even though my air conditioning system ran nonstop. After inspecting my air conditioning unit, my knowledgeable HVAC contractor recommended I purchase a new system. He discussed the pros and cons of installing different sizes of HVAC units with me. After considering my HVAC contractor’s advice, I decided to purchase a three and a half ton HVAC unit. Shortly after my HVAC contractor installed my new air conditioning unit, my house started feeling more comfortable. On this blog, I hope you will discover how an HVAC contractor can help you select the right air conditioning unit for your home. Enjoy!


The Right HVAC Unit for Your Home

What Steps Should You Take When Replacing Your AC Filter?

by Jamie Shaw

Filter replacements are essential for any homeowner with a central air conditioning system or forced air heating system. This simple service ensures that the other components of your system will continue to operate at peak efficiency, keeping your utility bills in check and maximizing their service life. Although replacing a filter isn't hard, you shouldn't take this vital task for granted.

If you typically neglect your HVAC filter or find yourself selecting one without giving it much thought, then it may be time to up your game. These steps will help you to choose the best filter for your home without breaking the bank.

Step 1. Optimize Your Replacement Intervals

There's plenty of advice on when to change your HVAC filters, but there's no perfect solution for every home or environment. If your household only has a central AC system, then you should change your filter no less than once per year. For houses with both AC and heating, you should change the filter at least twice per year.

While you should never change your filter less often than this, many homes will require more frequent replacements. Houses that include pets or heavy smokers may need to increase their replacement frequency to every 30-90 days. If in doubt, consult with your HVAC contractor during your annual service to determine if you require more frequent replacements.

Step 2. Understand MERV Ratings

Any filter you purchase will include a minimum efficiency reporting value (MERV) rating. Higher MERV ratings indicate more significant filtration levels, with 17 MERV and higher capable of filtering particles as small as 300 nanometers. Unfortunately, more efficient filters come with their own set of drawbacks worth considering.

While high MERV filters will catch more particles, they will also reduce airflow through your vents. As the filter becomes clogged, your system will experience more airflow restriction. Restricted airflow can wear out components more quickly and increase your energy bills. Most AC systems can handle MERV 7-13, but your HVAC contractor can advise you if you feel you need more filtration.

Step 3. Match Frame Sizes

MERV rating isn't the only characteristic that varies from filter to filter. Installing a filter that's too small will allow air to move past the filter, effectively leaving your system with no filtration at all. You should find the correct filter size printed on your old filter frame or your air handler housing. If you can't the filter size anywhere, bring your older filter to the store to confirm that you are buying a matching size.

Replacing your filter is easy, but it's not without potential pitfalls. Following these steps and working with an HVAC contractor when in doubt can improve your indoor air quality and keep your air conditioner running flawlessly all summer long. Companies such as Mauzy Heating, Air & Solar can help you with further questions you may have.