HVAC Frequently Asked Questions

As much as we all wish we were experts about our HVAC systems, every once in a while we’re all bound to be faced with an issue we can’t solve on our own. Here at John Nugent & Sons, we have all the expert HVAC knowledge you need! From refrigerant leaks to indoor air quality and AC repair, we’ve got the answers you need. Check out the FAQs below for answers to some of the most common HVAC questions, and give us a call if need more information!

Why Is the Temperature Uneven in My Home?

Whether you live in a multi-level home or a one bedroom apartment, you might experience hot spots throughout different rooms. From cracks in window sealing to improper insulation to dirty air filters—there are many reasons why you could experience poor air circulation.

Learn more about uneven heating >>>

Are Whole-House Humidifiers Worth It?

Tired of dry skin, chapped lips and a stuffy nose? Dry air can be the root of many of these problems. Luckily, your air quality can be improved with the use of a humidifier.

Learn more about whole-house humidifiers >>>

What Size Air Conditioner Do I Need?

If you’re ready to schedule new AC installation service in Northern VA, you may have already thought about two features you want: size and power. There’s no doubt that a larger AC unit must be more effective at cooling your home this summer, right? Well—not so fast. The U.S. Department of Energy reports that a bigger air conditioner won’t necessarily give you more comfort during the hot days ahead.

Learn more about air conditioner sizing >>>

How Can I Detect AC Refrigerant Leaks?

One of the most common AC problems your unit may encounter at some point is a refrigerant leak. Refrigerant leaks are very common, and they can wreak havoc on your expensive AC system if they go undetected. How can you tell if your unit has this problem?

Learn more about refrigerant leaks >>>

Does a Gas Furnace Work Without Electricity?

Being a Northern Virginia homeowner, you know how bad the winters can get. The snow often causes school and work to close—sometimes for a few days—and you are cooped up in your home the entire time. But if you’re relying on your gas furnace to keep you and your family warm, think again. Your gas furnace will not work without power. But there’s no need to worry, John Nugent & Sons has some suggestions to keep your home safe and comfortable this winter.

Learn more about operating heating your home without electricity >>>

What Do I Do If My Furnace Won’t Ignite?

We routinely receive phone calls from residents throughout Northern Virginia who say something to the extent of “my gas furnace won’t ignite.” When we’re in the middle of the cold season, your gas furnace is the most important appliance in your home. Check out this blog for what you should do when your furnace won’t ignite.

Learn more about igniting gas furnaces >>>

Why Is My Furnace Leaking?

You’ve likely encountered your fair share of heating system troubles over the years. A clank or squeal here, a breakdown there; it’s all fairly common every now and then. But what on earth could be making your gas furnace leak water? The answers are surprisingly simple, and the certified team at John Nugent & Sons are here to help you find them!

Learn more about furnace leaks >>>

Call John Nugent & Sons for All Your HVAC Needs!

Above are just some of the most common questions Northern Virginia residents frequently ask us about their HVAC systems, but there are far more! If you have a question not answered on this page—or if you need more professional help with your HVAC problem—contact us online or give us a call at 703-291-1926 today!