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Is it Normal for a New Furnace to Smell?

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Have you recently had a new furnace installed 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 creating this smell, and when you can anticipate it to go away, as well as three other furnace smells you shouldn’t disregard.

Why Your New Furnace Smells

There are two reasons why a new furnace might smell.

Protective Finish

Your furnace has a special finish on certain parts to keep them from rusting. This may include the heat exchanger, which safely gets rid of gases like carbon monoxide naturally produced 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 go away the more your furnace heats.

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

Dust

Dust collects inside your furnace when it’s not running in the spring and summer. That dust will burn off when you switch on your furnace in the fall, creating 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 every year. This is necessary to keep your valuable manufacturer’s warranty valid, plus it keeps your furnace clean and ensures it will run properly 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 can happen. Here are three other smells you should watch 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 protect against shocks, and this smell is an indication that heat is melting this precautionary coating. To prevent a fire, turn off your furnace right away and have it inspected 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, turn it off immediately, leave your home and dial 911. Exposure to natural gas can make you ill, plus it’s highly flammable and explosive.
  3. Musty. If your furnace smells musty, you might have mold and mildew flourishing in your ductwork. We recommend having your ductwork checked and cleaned if necessary.

Now that you are aware which furnace smells are normal and which ones aren’t, you’re well-equipped to take care of your new furnace. If you have concerns about an odd odor, our Abilene Air-Tech Inc HVAC technicians can help. Contact us at (325) 692-5850 to schedule your appointment now. We provide quality, affordable furnace repair in Abilene and surrounding communities.

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