Have you recently had a new furnace set up and are now having a strange smell? You’re not alone, because plenty of other homeowners also experience this at first. Let’s review what’s creating this smell, and when you can expect it to disappear, 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 reek.

Protective Finish

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

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

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

Dust

Dust builds inside your furnace when it’s idle in the summer. That dust will burn off when you switch on your furnace in the fall, producing a burning smell. This smell should disappear within a few minutes.

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

3 Other Furnace Smells You Shouldn’t Ignore

While it’s less common for a new system to need furnace repair, it happens. Here are three other odors you should look 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 signal that heat is melting this protective coating. To prevent a fire, switch off your furnace right away and have it examined out by an HVAC technician.
  2. Gas or rotten eggs. Gas companies include sulfur in natural gas to alert you when there’s a problem. If your furnace smells like gas or rotten eggs, turn it off immediately, leave your home and contact 911. Exposure to natural gas can make you sick, plus it’s highly flammable and explosive.
  3. Musty. If your furnace smells musty, you might have mold and mildew developing in your ductwork. We suggest having your ductwork checked and cleaned if needed.

Now that you are aware which furnace smells are normal and which ones aren’t, you’re prepared to take care of your new furnace. If you have concerns about a strange odor, our Pepper AC & Heat HVAC technicians can help. Call us at 940-202-1184 to schedule your appointment today. We supply quality, affordable furnace repair in Justin and surrounding neighborhoods.