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

Protective Finishing

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 created during the heating process.

When your furnace operates for the first couple of times, the coating may give off a burning smell. This is normal 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 continues. A burning smell that lingers can mean the motor is too hot or there’s an electrical problem, among other problems.

Dust

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

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

3 Other Furnace Smells You Shouldn’t Ignore

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 difficulties. Electrical wiring is coated in plastic to protect against shocks, and this smell is an indication that heat is melting this preventive coating. To prevent 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 signal you when there’s a problem. If your furnace smells like gas or rotten eggs, shut it off immediately, evacuate 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 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 prepared to take care of your new furnace. If you’re worried about a weird odor, our Farnell Mechanical, Inc. HVAC technicians can help. Contact us at 334-524-2458 to schedule your appointment now. We offer quality, affordable furnace repair in Auburn and Opelika and surrounding communities.