Furnace Articles

What Does AFUE Mean?

January 29, 2022
What Does AFUE mean?

While an air conditioner’s efficiency is measured by its SEER (Seasonal Energy Efficiency Ratio) rating, an electric or gas- or oil-fired furnace’s efficiency is measured by its AFUE, or average fuel utilization efficiency. This standard measurement is given in percentages, letting you know how much of your fuel is actually used to heat your Maryland home and how much fuel is wasted. 

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Why Is My Furnace Blowing Cold Air?

November 16, 2021
why is my furnace blowing cold air

you finally turn your furnace on this winter only to have cold air blowing out of your vents? Or did your furnace stop working just when you started to need it most? There are a few reasons your furnace may be blowing cold air, and there a few things to check before you need to worry too much.

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7 Furnace Maintenance Tips

October 15, 2021
7 Furnace Maintenance Tips

It’s understandable that maintenance tasks often fall by the wayside. Many Clarksville homeowners follow the mantra of “if it ain’t broke, don’t fix it.” Everyone is busy and many seemingly more important priorities tend to creep up every month to consume time and money. 

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Keeping Your Heat During Extreme Cold Weather

January 30, 2019
Cold home, freezing family, mother and son, Wrapped In Blanket Sitting Near Heater.

We receive countless calls every time the temperatures drop below normal ranges, as homeowners here in Howard County encounter problems with their home’s heating system. With the record-low temperatures and extreme conditions most of the country is currently experiencing, our Environmental Systems Associates professionals want to share some insights and tips with you to keep…

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Thermostat Troubleshooting

November 28, 2018
Senior woman saving energy by dressing warm and adjusting her thermostat.

A thermostat is a heat-activated switch. It has an internal temperature sensor that causes a switch to open or close. This switch completes or disrupts the electrical circuit that runs your heating and cooling system. It gauges the temperature and depending on the season will turn your HVAC on or off to heat or cool…

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How Does My Gas Furnace Work?

November 28, 2018
Close-up view of blue flames in gas boiler

Gas furnaces create heat by burning natural gas. This gas is usually methane combined with other carbon based gasses. The Ignitor The process starts with the ignitor. The ignition source for older furnaces is a pilot light, newer furnaces use an electronic starter. With a pilot light, the regulator supplies a very small bit of…

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