Have you recently had a new furnace put in and are now having a strange 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 go away, as well as three other furnace smells you shouldn’t ignore.

Why Your New Furnace Smells

There are two reasons why a new furnace might smell.

Protective Coating

Your furnace has a special finish on some 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 give off a burning smell. This is normal and the smell should dissipate the more your furnace operates.

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 concerns.

Dust

Dust accumulates 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 lessen or prevent this smell is by having furnace maintenance done each year. This is required to keep your valuable manufacturer’s warranty applicable, plus it keeps your furnace clean and ensures it will run properly during the upcoming heating period.

3 Other Furnace Smells You Shouldn’t Ignore

While it’s less common for a new system to need furnace repair, it happens. Here are three other odors 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 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 avoid a fire, shut off your furnace as soon as possible 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 leakage. If your furnace smells like gas or rotten eggs, shut it off right away, leave your home and contact 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 growing in your ductwork. We recommend having your ductwork inspected and cleaned if needed.

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 heater. If you’re worried about a weird odor, our Fal-Ken Heating & Cooling Corporation HVAC technicians can help you. Give us a call at 631-460-5159 to schedule your appointment now. We supply quality, affordable furnace repair in Holbrook and surrounding communities.