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What Is an Air Handler? Service Man Working on Furnace.

What Is an Air Handler?

March 31, 2025

The same goes for a heat pump. The outdoor unit might be in perfect working condition. Still, the heating and cooling process stops without an indoor evaporator coil, connecting refrigerant lines, and a fan to blow conditioned air through ductwork.

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ventilation system equipment and helmet on white background

How Can I Make My Furnace Last Longer?

March 15, 2025

The key is treating your Reston system with care and respect. From our team, here are four things you should do to make your furnace last longer:

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HVAC technician performing maintnenace on a furnace.

How Does My Gas Furnace Work?

February 28, 2025

According to the U.S. Department of Energy (DOE), furnace filter changes can reduce your energy bill by 5 to 15 percent as well.

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Why Is the Furnace Pilot Light Going Out?

Why Is the Furnace Pilot Light Going Out?

February 15, 2025

If you ever hear your gas furnace turn on but cannot feel any warm air blowing from the vents inside your Virginia home, chances are the pilot light went out.

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How Do I Keep My Heat During Extreme Cold Weather?

How Do I Keep My Heat During Extreme Cold Weather?

January 31, 2025

We receive countless calls every time the temperatures drop below normal ranges, as homeowners here in Fairfax encounter problems with their home’s heating system. With the record-low temperatures and extreme conditions most of the country is currently experiencing, our Comfort Defender professionals want to share some insights and tips with you to keep your indoors cozy while Old Man Winter blusters away outdoors.

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Smiling parents with little kids laughing using smartphone together sitting on couch at home. Happy father holding phone taking selfie with children. Family watching video having fun with cellphone.

What Are Signs I Need a New Furnace?

January 15, 2025

Our team wants you to understand how your furnace works and what signs you can watch for to indicate it’s time for a replacement heating system.

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Why Is My Garbage Disposal Humming? Water running from tap into kitchen sink.

Why Is My Garbage Disposal Humming?

December 31, 2024

Have you ever just cleared the dinner table after a nice meal inside your Centreville, home and went to turn your garbage disposal on, only to hear it making an unusual humming sound?

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How to Lower Your Winter Heating Bill

How to Lower Your Winter Heating Bill

December 16, 2024

Wintertime is here. That means your family will be spending more time indoors to stay warm.

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Transitioning Your Heat Pump. Close-up of black full inverter heat pump outside in the garden, near wooden pool house on a sunny day. Lens flare on the image.

Transitioning Your Heat Pump

November 30, 2024

One reason Virginia homeowners love heat pumps is they function as an all-in-one unit. Instead of purchasing and maintaining a separate furnace and air conditioning system, you can simply transition your heat pump from the heat setting to the cooling setting and vice versa as seasons warrant.

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How Can I Make My Furnace Last Longer?

How Can I Make My Furnace Last Longer?

November 15, 2024

The average furnace lasts between 10 and 15 years. But did you know you can take steps to make it last longer? There is no shortcut or hack to increase your furnace’s longevity.

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