Carrier Factory Authorized Dealer

Available 24 hours
7 days a week!


Schedule An Appointment
Leave Us A Review

Your Step-by-Step Guide for Filter Changes

Find Your HVAC Filter

Your HVAC filter is usually on the blower compartment or return air duct. Horizontal HVAC units have the return duct on the side of the air handler, while vertical air handlers will have the air duct coming down into the top of the unit. Look for the air filter above, below, or behind your HVAC unit. In some homes, you may also find filters behind the return grills.

If you need help finding the filter for your HVAC unit, just ask your service technician during your next maintenance visit. You should have your system tuned up at least once a year. This is the perfect time to get a quick tutorial on locating and changing the filter.

Choose the Right Replacement

Your current air filter will provide you with a good template for purchasing replacement filters. Make sure you choose a new filter with the exact same dimensions as the old one so that you get the right fit. The MERV rating is an important consideration for your filter as well.

If you want improved filtration, you can choose a filter with a slightly higher MERV rating. However, you shouldn’t go too high, as the finer mesh of a highly-rated filter will put extra strain on your system as it tries to pull air through. Most residential systems do well with a MERV rating between 7 and 12.

Install the Filter Correctly

Sliding a new filter into your HVAC system is quick and easy. Look for directional arrows or other instructions on your filter to help you get the placement right. Some are colored separately on the front and back for proper air flow.

If you’re having trouble with your HVAC system that isn’t resolved by a filter change, contact Brennan’s Heating & Air Conditioning at 703-783-0145 for prompt and knowledgeable repair services.

Image provided by Bigstock

You May Also Like

Furnace Stinks
January 23, 2024

Why Your Furnace in Stafford, VA, Stinks

The warm air that comes from your furnace during the cold months in Stafford, VA, gives you a pleasant feeling. However, if… Continue Reading Why Your Furnace in Stafford, VA, Stinks

Read More…

Cat Enjoying Heat
December 13, 2023

3 Heating Maintenance Tips for Pet Owners in Annandale, VA

Warning: Your furry friends can change your heating system’s efficiency. Fortunately, there are measures you can adopt to prevent your pets from… Continue Reading 3 Heating Maintenance Tips for Pet Owners in Annandale, VA

Read More…

Gas Furnace Maintenance
November 28, 2023

Why Won’t My Furnace Shut Off in Stafford, VA?

Standard furnaces typically run a few heating cycles per hour. It can cause concern when you realize yours is running constantly as… Continue Reading Why Won’t My Furnace Shut Off in Stafford, VA?

Read More…

Compliance Settings
Increase Font Size
Grayscale
Simplified Font
Underline Links
Highlight Links
Reset
Close