Have you recently had a new furnace set up and are now having an unusual smell? You’re not alone, because plenty of other homeowners also have this happen at first. Let’s review what’s causing this smell, and when you can expect it to go away, as well as three other furnace smells you shouldn’t neglect.

Why Your New Furnace Smells

There are two explanations why a new furnace might stink.

Protective Finish

Your furnace has a special coating on certain parts to keep them from rusting. This may include the heat exchanger, which safely exhausts gases including carbon monoxide naturally produced during the heating process.

When your furnace runs for the first couple of times, the coating may emit a burning smell. This is standard and the smell should disperse the more your furnace runs.

To be on the safe side, you’ll want to connect with a heating and cooling company if the smell continues. A burning smell that lingers can mean the motor is too hot or there’s an electrical problem, among other issues.

Dust

Dust accumulates 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, producing a burning smell. This smell should disappear within a few minutes.

One way you can lessen or prevent this smell is by having furnace maintenance done every single year. This is necessary to keep your valuable manufacturer’s warranty valid, plus it keeps your furnace clean and ensures it will run properly during the upcoming heating period.

3 Other Furnace Smells You Shouldn’t Ignore

While it’s less common for a new system to need furnace repair, it can happen. Here are three other odors you should keep an eye out for and what they might mean.

  1. Burning plastic or rubber. If your furnace smells like burning plastic, you might have an electrical problem. Electrical wiring is covered in plastic to protect against shocks, and this smell is a sign that heat is melting this protective coating. To prevent a fire, turn off your furnace as soon as possible and have it examined out by an HVAC technician.
  2. Gas or rotten eggs. Gas companies include sulfur in natural gas to warn you when there’s a problem. If your furnace smells like gas or rotten eggs, shut it off as soon as possible, get out of your home and dial 911. Exposure to natural gas can make you unwell, plus it’s highly flammable and explosive.
  3. Musty. If your furnace smells musty, you might have mold and mildew growing in your ductwork. We advise having your ductwork examined and cleaned if necessary.

Now that you are aware which furnace smells are normal and which ones aren’t, you’re prepared to take care of your new heating system. If you have concerns about an odd odor, our A2Z Air Inc HVAC technicians can help you. Contact us at 561-270-6228 to schedule your appointment today. We offer quality, affordable furnace repair in Boynton Beach and surrounding neighborhoods.