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 or even raise concern about a furnace gas leak? The answers are surprisingly simple, and the certified team at John Nugent & Sons is here to help you find them!
Why Is My Furnace Leaking?
There are two “common types” of furnaces these days: high-efficiency gas furnaces and the more standard ones most of us are accustomed to. Both can potentially leak, but for very different reasons!
A Gas Furnace Might Leak If…
A standard-efficiency gas furnace doesn’t have that many potential causes for a leak, so your options are quite easy here. The only real major cause of a furnace leak would be an improperly installed flue (the large metal pipe that carries exhaust out of the home). When your flue is too small or installed poorly, heat can become trapped, which, over time, will cool and convert any moisture into liquid.
This water will eventually find its way down the flue, either into your furnace or onto the nearby floor. As you might guess, this is uncommon, but really bad news for your furnace. If your standard furnace is leaking water, call in a trusted professional immediately.
The only other possibility for a standard furnace system to leak is if you have a humidity-control system in place. If it ties directly into your ducts or furnace system, it’s probably your true culprit.
A High-Efficiency Gas Furnace Might Leak If…
These furnaces have a much more legitimate reason to leak. A high-efficiency furnace uses a dual heat exchanger system to get more out of your fuel. However, a gap between these processes allows the air in your furnace to cool rapidly, creating condensation. Normally, this condensation is handled by the furnace’s drain system, which safely disposes of the water with no hassle. But these issues may cause a leak:
- Damage to the drain line or drain pan
- One of your heat exchangers is damaged or not working properly
These problems still aren’t particularly common, but they do happen on occasion. If you’re using a high-efficiency furnace and you’ve got a water leak, one of the above three is almost definitely the problem at hand.
Can a Furnace Leak Be Something More Serious?
While water leaks are often related to drainage or condensation issues, homeowners should also be aware of the potential for a furnace gas leak. Unlike water leaks, gas leaks are far more dangerous and require immediate attention.
Warning Signs of a Furnace Gas Leak
A furnace leaking gas is a severe emergency. Natural gas is highly combustible, and breathing it poses significant health risks. Knowing the exact symptoms of a gas leak from a furnace ensures you can take swift action to protect your family.
The most common warning signs include:
- A strong rotten egg or sulfur smell
- Hissing or whistling sounds near the gas line or furnace
- Physical symptoms such as headaches, dizziness, nausea, or difficulty breathing
- Dead or dying houseplants near your furnace
If you notice any of these signs, do not ignore them. Acting quickly can prevent serious health risks and potential hazards in your home.
What to Do If You Suspect a Gas Leak
Never attempt DIY repairs on gas lines or furnace components. If you suspect a furnace gas leak, leave your home immediately. Do not turn on lights, use electronics, or attempt to shut off the gas yourself, as even a small spark can ignite the gas.
Once you are safely outside, contact your utility provider or emergency services. After the gas has been shut off and your home is deemed safe, a licensed HVAC professional must perform the necessary gas furnace leak repair before your system can be used again.
Gas Furnace Repair in Northern Virginia with John Nugent & Sons
No matter the type of furnace or the issue you’re experiencing, our certified HVAC repair professionals can provide fast service and the exceptional solutions you need. Your comfort is critically important to our team, so when you’ve got a furnace problem, we act fast with industry-leading diagnostics and rapid response times. Contact us today to learn more or to schedule an appointment for your repair service.