Have you recently had a new furnace set up and are now noticing a weird smell? You’re not alone, because many other homeowners also have this happen at first. Let’s review what’s leading to this smell, and when you can anticipate it to subside, as well as three other furnace smells you shouldn’t disregard.

Why Your New Furnace Smells

There are two explanations why a new furnace might stink.

Protective Finishing

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

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

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 remains can mean the motor has overheated or there’s an electrical problem, among other problems.

Dust

Dust accumulates inside your furnace when it’s not running in the summer. 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 lessen or prevent this smell is by having furnace maintenance done every single year. This is required to keep your valuable manufacturer’s warranty good, plus it keeps your furnace clean and ensures it will run perfectly 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 happens. Here are three other scents 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 coated in plastic to avoid shocks, and this smell is a sign that heat is melting this preventive coating. To avoid a fire, switch 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, turn it off as soon as possible, evacuate your home and dial 911. Exposure to natural gas can make you unwell, plus it’s extremely flammable and explosive.
  3. Musty. If your furnace smells musty, you might have mold and mildew flourishing in your ductwork. We suggest having your ductwork inspected 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 a weird odor, our Cooler Tymes LLC HVAC technicians can help you. Call us at 623-208-6444 to schedule your appointment today. We supply quality, affordable furnace repair in Litchfield Park and surrounding neighborhoods.