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HVAC 101: A Lesson On Your Heating & Cooling System


It’s August, and you know what that means? Back to school! But this time, it’s not just for the kids. In the spirit of education, it’s time for adults to learn something new - all about your HVAC system!

We’re willing to bet that you relied pretty heavily on your air conditioning this summer to keep things cool and comfortable in your home, but how much do you really know about how it works?

Let’s dive into the essential functions of your HVAC system, how to maintain it, and what requires repair, giving you the tools you need to be the best homeowner around!

How Does Your HVAC System Work?

hvacsystemYour HVAC system has the important job of keeping you cool in the summer and warm in the winter.

Having a good understanding of how your HVAC system works is key to ensuring it can last you for years to come.

While there are plenty of moving parts inside your HVAC system that let it heat and cool your home, the essential components include:

  • Ductwork - Your home’s ductwork system functions to move heated and cooled air throughout your home.
  • Thermostat - Your thermostat controls the temperature and other settings of your HVAC system.
  • Air Handler - Your air handler is responsible for conditioning the air and then pumping it out and into your ductwork.
  • Evaporator Coils - The evaporator coils are used to compress the freon that cycles through your unit and then using that gas to regulate the temperature as needed. Essentially it’s what makes your air cold.

Proper HVAC System Maintenance

Routine and professional HVAC system maintenance is vital to your system functioning when you need it to last throughout its life expectancy. Here are some things you should be doing for your HVAC system to keep it running as it should:

  • hvacsystemmaintenanceFilter Replacement - Replace your filter every 6 weeks. It will need to be replaced sooner if you have a pet or smoker within your home.
  • Professional Service - Call for professional services and inspections twice per year to make sure everything is functioning properly.
  • Check Your Air Ducts - Inspect your home’s air ducts to make sure they aren’t leaking and that there are no blockages.
  • Maintain Your Outside Unit - Ensure your outside AC unit is kept free of debris and that the concrete slab is level and in good condition.

In many cases, you can easily sign up for a maintenance program with an HVAC company. This ensures you have an expert that’s familiar with your system and ready to keep it in the best shape possible.

Signs HVAC Repair is Necessary

Even with all the best maintenance and care, in some cases, you’ll still run into repair issues. Knowing the signs to look for can save you a lot of hassle and money. Some of these symptoms include:

  • Loud noises including grinding, scratching, excess humming, and grinding.
  • Higher than usual utility costs without any changes to usage.
  • Poor indoor air quality, including excess dust.
  • System blows the opposite temperature - cold when it’s supposed to blow hot, and vice versa.
  • Takes your home longer to heat up or cool down.
  • Little to no airflow in specific areas of your home.

hvacrepairDo any of the HVAC repair signs sound familiar? Is your system due for its bi-yearly inspection? Give Garneski Air Conditioning & Heating a call.

Our highly trained and experienced HVAC technicians can diagnose and repair any problem quickly, professionally, and at a price that won’t break the bank.

We also offer full system replacements for those big problems that can’t be solved so easily anymore so schedule your appointment with us today!