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Maintaining Your HVAC System in Unique Climates: Tips for Extreme Heat and Cold

by Dhriti

Your HVAC (heating, ventilation, and air conditioning) system plays a crucial role in keeping your home comfortable all year round. But when temperatures reach extreme highs or lows, your system must work extra hard to keep up. This can not only lead to higher energy bills but also put excessive strain on the system, leading to potential breakdowns. Hiring a professional for HVAC in Dunwoody is a great option to ensure your system is in top shape, but there are also steps you can take yourself to maintain it during extreme weather conditions. Here are some tips for maintaining your HVAC system in unique climates.

Extreme Heat

With rising temperatures due to global warming, more and more regions are experiencing record-breaking heat waves. In such extreme heat conditions, the following tips can help you maintain your HVAC system:

Change Air Filters Frequently: During hot weather, your air conditioner is constantly running to keep your home cool. This means that the air filters get clogged with dust and debris more quickly. Make sure to change them every 1-2 months to ensure proper airflow and prevent strain on the system.

Clean the Outdoor Unit: The outdoor unit of your HVAC system is exposed to the elements and can accumulate dust, leaves, and other debris. Use a garden hose to gently rinse it off and remove any blockages from the fins. This will improve its efficiency and prevent overheating.

Keep Blinds and Curtains Closed During Peak Heat Hours: Direct sunlight can increase the temperature in your home, making your air conditioner work harder. Keep blinds and curtains closed during the day to reduce the load on your HVAC system.

Get Regular Maintenance: It is important to schedule a professional maintenance check-up for your HVAC system at least once a year, especially before the summer season. This will ensure that any potential issues are caught early and fixed before they turn into costly repairs.

Extreme Cold

Living in a region with harsh winters can also take a toll on your HVAC system. Here are some tips to maintain it during extreme cold:

Change Air Filters Frequently: Just like during hot weather, your furnace will be running constantly during the winter months. This means that the air filters need to be changed regularly to prevent dust and debris buildup. This will also ensure proper airflow and prevent strain on the system.

Keep Vents and Registers Clean: Make sure to regularly vacuum and wipe down your vents and registers. They can accumulate dust, pet hair, and other debris, which can reduce the efficiency of your system.

Clear Snow Away from The Outdoor Unit: If you have a heat pump, make sure to clear away any snow or ice that has accumulated around the outdoor unit. This will prevent it from freezing and causing damage to the system.

Invest In a Programmable Thermostat: A programmable thermostat can help you save energy during extreme cold by automatically adjusting the temperature when you are not at home or asleep. This will not only reduce your energy bills but also lessen the strain on your HVAC system.


By following these tips, you can ensure that your HVAC system remains in top condition and provides optimal comfort during extreme heat or cold. Knowing how the HVAC system works and taking proper care of it can also extend its lifespan and save you from costly repairs or replacements.

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