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 experience this at first. Let’s review what’s causing this smell, and when you can expect it to subside, as well as three other furnace smells you shouldn’t neglect.

Why Your New Furnace Smells

There are two reasons why a new furnace might reek.

Protective Finish

Your furnace has a special coating on specific parts to keep them from rusting. This may include the heat exchanger, which safely exhausts gases like carbon monoxide naturally created 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 lingers. A burning smell that sticks around can mean the motor has overheated or there’s an electrical problem, among other issues.

Dust

Dust accumulates inside your furnace when it’s not running in the summer. That dust will burn off when you flip on your furnace in the fall, making 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 each year. This is needed to keep your valuable manufacturer’s warranty good, plus it keeps your furnace clean and ensures it will run smoothly during the upcoming heating time of year.

3 Other Furnace Smells You Shouldn’t Disregard

While it’s less common for a new system to require furnace repair, it happens. 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 issue. Electrical wiring is covered in plastic to avoid shocks, and this smell is a sign that heat is melting this precautionary coating. To avoid a fire, switch off your furnace immediately and have it checked out by an HVAC technician.
  2. Gas or rotten eggs. Gas companies add sulfur to natural gas to signal you when there’s a problem. If your furnace smells like gas or rotten eggs, turn it off immediately, get out of your home and call 911. Exposure to natural gas can make you sick, plus it’s very 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 inspected and cleaned if required.

Now that you understand which furnace smells are normal and which ones aren’t, you’re ready to take care of your new heating system. If you have concerns about a strange odor, our Franklin's Heating & Air Conditioning, Inc HVAC technicians can help you. Give us a call at 662-281-1231 to schedule your appointment now. We supply quality, affordable furnace repair in Oxford and surrounding communities.