Have you recently had a new furnace installed and are now noticing a strange smell? You’re not alone, because a lot of other homeowners also experience this at first. Let’s review what’s leading to this smell, and when you can anticipate it to disappear, 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 smell.

Protective Coating

Your furnace has a special application on certain parts to keep them from rusting. This may include the heat exchanger, which safely removes gases like carbon monoxide naturally made during the heating process.

When your furnace operates 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 operates.

To be on the safe side, you’ll want to contact a heating and cooling company if the smell persists. A burning smell that sticks around can mean the motor is too hot or there’s an electrical problem, among other problems.

Dust

Dust accumulates inside your furnace when it’s not running in the spring and summer. That dust will burn off when you flip 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 necessary to keep your valuable manufacturer’s warranty applicable, plus it keeps your furnace clean and ensures it will run properly during the upcoming heating season.

3 Other Furnace Smells You Shouldn’t Dismiss

While it’s less common for a new system to require furnace repair, it can happen. 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 issue. Electrical wiring is coated in plastic to prevent shocks, and this smell is a signal that heat is melting this protective coating. To hinder a fire, switch off your furnace right away and have it examined out by an HVAC technician.
  2. 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 right away, 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 examined and cleaned if required.

Now that you understand which furnace smells are normal and which ones aren’t, you’re well-equipped to take care of your new furnace. If you’re worried about a weird odor, our Mountain Air HVAC technicians can help. Give us a call at 304-413-1287 to schedule your appointment now. We provide quality, affordable furnace repair in Morgantown and surrounding communities.