Have you recently had a new furnace put in and are now experiencing an unusual smell? You're not alone, because many other homeowners also experience this at first. Let’s review what’s causing this smell, and when you can anticipate it to go away, as well as three other furnace smells you shouldn’t disregard.
Why Your New Furnace Smells
There are two reasons why a new furnace might stink.
Protective Coating
Your furnace has a special finish on specific parts to keep them from rusting. This may include the heat exchanger, which safely gets rid of gases such as carbon monoxide naturally produced during the heating process.
When your furnace operates for the first couple of times, the coating may give off a burning smell. This is standard and the smell should dissipate the more your furnace runs.
To be on the safe side, you’ll want to call a heating and cooling company if the smell persists. A burning smell that sticks around can mean the motor has overheated or there’s an electrical problem, among other issues.
Dust
Dust collects inside your furnace when it’s not running in warm weather. That dust will burn off when you turn on your furnace in the fall, creating a burning smell. This smell should disappear within a few minutes.
One way you can reduce or prevent this smell is by having furnace maintenance done every year. This is required to keep your valuable manufacturer’s warranty valid, plus it keeps your furnace clean and ensures it will run smoothly during the upcoming heating season.
3 Other Furnace Smells You Shouldn’t Disregard
While it’s less common for a new system to need furnace repair, it happens. Here are three other smells you should watch for and what they might mean.
- Burning plastic or rubber. If your furnace smells like burning plastic, you might have an electrical problem. Electrical wiring is coated in plastic to protect against shocks, and this smell is a sign that heat is melting this protective coating. To avoid a fire, turn off your furnace immediately and have it checked out by an HVAC technician.
- Gas or rotten eggs. Gas companies add sulfur to natural gas to alert you when there’s a leak. If your furnace smells like gas or rotten eggs, shut it off immediately, leave your home and call 911. Exposure to natural gas can make you sick, plus it’s extremely flammable and explosive.
- Musty. If your furnace smells musty, you might have mold and mildew flourishing in your ductwork. We advise having your ductwork checked and cleaned if necessary.
Now that you are aware which furnace smells are normal and which ones aren’t, you’re ready to take care of your new heating system. If you're worried about an odd odor, our H&C Heating and Cooling HVAC technicians can help. Contact us at 301-960-3247 to schedule your appointment today. We provide quality, affordable furnace repair in Laurel and surrounding areas.