Have you recently had a new furnace set up and are now noticing an unusual 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 subside, as well as three other furnace smells you shouldn’t disregard.

Why Your New Furnace Smells

There are two factors why a new furnace might smell.

Protective Finish

Your furnace has a special application on specific parts to keep them from rusting. This may include the heat exchanger, which safely removes gases including carbon monoxide naturally produced 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 dissipate the more your furnace runs.

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

Dust

Dust collects inside your furnace when it’s off in the summer. That dust will burn off when you switch on your furnace in the fall, making a burning smell. This smell should subside 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 valid, plus it keeps your furnace clean and ensures it will run properly during the upcoming heating period.

3 Other Furnace Smells You Shouldn’t Disregard

While it’s less common for a new system to need furnace repair, it can happen. Here are three other odors 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 prevent shocks, and this smell is a sign that heat is melting this precautionary 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 leak. If your furnace smells like gas or rotten eggs, shut it off right away, evacuate your home and contact 911. Exposure to natural gas can make you sick, 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 examined and cleaned if needed.

Now that you understand which furnace smells are normal and which ones aren’t, you’re well-equipped to take care of your new heating system. If you’re worried about an odd odor, our West Michigan Heating & Air Conditioning Services HVAC technicians can help you. Call us at (616) 319-1436 to schedule your appointment today. We supply quality, affordable furnace repair in Hudsonville and surrounding neighborhoods.