Have you recently had a new furnace put in and are now experiencing a weird smell? You’re not alone, because a lot of other homeowners also have this happen at first. Let’s review what’s causing this smell, and when you can look forward to it to disappear, 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 reek.

Protective Finish

Your furnace has a special finish on specific parts to keep them from rusting. This may include the heat exchanger, which safely removes gases like 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 go away the more your furnace heats.

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 accumulates inside your furnace when it’s idle in warm weather. That dust will burn off when you turn on your furnace in the fall, creating a burning smell. This smell should subside 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 period.

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 problem. Electrical wiring is covered in plastic to prevent shocks, and this smell is a sign that heat is melting this precautionary coating. To avoid a fire, switch 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 signal you when there’s a leak. If your furnace smells like gas or rotten eggs, shut it off as soon as possible, get out of your home and call 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 developing in your ductwork. We recommend 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 heating system. If you have concerns about an odd odor, our Better Air HVAC technicians can help you. Call us at 507-663-1208 to schedule your appointment right now. We offer quality, affordable furnace repair in Dundas and Northfield and surrounding communities.