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 causing this smell, and when you can look forward to it to go away, as well as three other furnace smells you shouldn’t neglect.

Why Your New Furnace Smells

There are two factors why a new furnace might smell.

Protective Finish

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

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

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

Dust

Dust collects inside your furnace when it’s off in warm weather. That dust will burn off when you switch on your furnace in the fall, producing a burning smell. This smell should go away within a few minutes.

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

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 smells 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 coated in plastic to avoid shocks, and this smell is a signal that heat is melting this preventive coating. To avoid a fire, turn off your furnace immediately 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, shut it off right away, get out of your home and contact 911. Exposure to natural gas can make you ill, plus it’s extremely flammable and explosive.
  3. Musty. If your furnace smells musty, you might have mold and mildew growing in your ductwork. We suggest having your ductwork checked and cleaned if required.

Now that you know which furnace smells are normal and which ones aren’t, you’re well-equipped to take care of your new heater. If you’re worried about an odd odor, our Covington Air Systems HVAC technicians can assist you. Contact us at (770) 462-5319 to schedule your appointment today. We offer quality, affordable furnace repair in Covington and surrounding areas.