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Gas Furnaces

When the snow starts falling in Sterling, VA, you want a furnace you can depend on to keep your family warm and safe. Behind every great furnace is a great team of heating, ventilation, and air conditioning (HVAC) professionals you can count on Garneski Air Conditioning & Heating to keep your heating equipment running strong.

We can service any make or model. Additionally, we install only the finest heating and cooling products using only Carrier furnaces, heat pumps, and air conditioners. No matter the time of year, we’re ready to improve your home comfort

What Does AFUE Mean?

AFUE stands for annual fuel utilization efficiency. This rating system gives you a quick way to see how cost-effective an HVAC unit is.

Older, lower-tier furnaces typically have an AFUE of 56 to 70 percent. That means little more than half of the fuel they consume gets used. Not exactly the most productive use of resources. Fortunately, furnaces have come a long way since then, burning as high as 98.5 percent AFUE.

How Much Money Can a New Furnace Save You?

Our specially trained comfort advisor can help determine how much you could save on your utility bills. Simply book an appointment today and he will compute your current unit’s AFUE value and compare it to a newer, more efficient system. He can even customize it to better match your home’s system for a more accurate calculation.

Environmentally Friendly

A new furnace does more than save you money on energy costs, it lowers your home’s carbon emissions. Switching out from your old 56 percent AFUE clunker to a 90 percent AFUE efficiency model can reduce your carbon footprint by a significant margin, according to the U.S. Department of Energy (DOE).

What Is a Variable Speed Furnace?

Single-stage furnaces only blow hot air at one speed. They are the most affordable upfront—but the most expensive to operate. Additionally, they have the most temperature variance, sometimes a 4 to 6 degrees difference between rooms.

Two-stage furnaces can distribute hot air at a full-speed or half-speed setting. This allows for more comfort and efficiency without breaking the bank.

Variable speed furnaces have fully dynamic and responsive blower speeds. This is the most energy-efficient option by far. Also, your home will be a near-uniform temperature, within a fraction of a difference between all rooms.

How Does a Furnace Work?

Gas furnaces heat using combustion. Once you set your thermostat, your furnace gets to work.

The ignitor lights the gas. Newer models use an electric starter to ignite, while older models use a pilot flame.

The combustion chamber lets in oxygen. This keeps the combustion efficient and clean. It also gets rid of byproducts, sending them through your flue.

The heat exchanger captures the heat rising from the combustion chamber. It has metal tubes that warm up. The heat from the tubes gets distributed through your air ducts with blowers.

Furnace Installation and Replacement

Need a new heating system installed? We can help with that. At Garneski Air Conditioning & Heating, our team of highly trained experts is ready to modernize your home comfort.

From start to finish, it’s a collaborative process:

  • First, we’ll take measurements to determine the appropriate size of the heating system for your home.
  • Next, we’ll assist as you find the model that meets your personal preferences and budget.
  • Then, we’ll give you an accurate estimate.

The average installation takes four to eight hours. However, the timeframe may increase if you need additional air duct modifications or work done on your wires or gas lines.

Be sure to ask about our convenient financing options to purchase the HVAC equipment your family deserves. Ready to get started? Give us a call.

Furnace Repair

Are you having furnace troubles? Common symptoms include:

  • Short cycling
  • Patchy heat or no heat at all
  • Strange sounds

It gets cold here in Virginia, so we take repair calls seriously. Our experts are committed to solving the problem and making a long-lasting repair, no band-aid solutions. As an added protection, we offer repair warranties.

Furnace Maintenance

Schedule a fall tune-up to keep your heating system running at peak efficiency all winter. It’s also critical for your safety—a professional needs to check your heat exchanger for any cracks that could lead to a dangerous carbon monoxide leak. Your specialist will also perform vital cleaning that helps extend the lifespan of your equipment. Schedule maintenance today. Or sign up for one of our Service Agreement to receive reminders, priority service, discounts, and more. 

Call Garneski Air Conditioning & Heating for Dependable HVAC Service

We’re ready to handle your home comfort needs. Call Garneski Air Conditioning & Heating today for the best HVAC services in Sterling, VA. You can reach us  at 703-659-4598 or book now online.

Maintenance Check in Chantilly, VA 22033

October 4, 2023

“Darren provided a quick, but thorough fall inspection of our HVAC system. All systems were tested and measured, and Darren provided a number of suggestions to improve our indoor air quality, which is a major issue for our family.”

– Paul S.