Have you recently had a new furnace set up and are now noticing a strange smell? You’re not alone, because a lot of other homeowners also have this happen at first. Let’s review what’s leading to this smell, and when you can expect 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 coating on some parts to keep them from rusting. This may include the heat exchanger, which safely exhausts gases including carbon monoxide naturally produced during the heating process.

When your furnace runs for the first couple of times, the coating may release a burning smell. This is normal and the smell should go away the more your furnace runs.

To be on the safe side, you’ll want to connect with 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 accumulates inside your furnace when it’s off in the summer. That dust will burn off when you flip on your furnace in the fall, creating a burning smell. This smell should disappear within a few minutes.

One way you can reduce 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 perfectly during the upcoming heating period.

3 Other Furnace Smells You Shouldn’t Ignore

While it’s less common for a new system to require furnace repair, it happens. Here are three other odors 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 difficulties. Electrical wiring is protected in plastic to avoid shocks, and this smell is a signal that heat is melting this protective coating. To avoid a fire, turn off your furnace immediately and have it inspected out by an HVAC technician.
  2. Gas or rotten eggs. Gas companies add sulfur to natural gas to warn you when there’s a leak. If your furnace smells like gas or rotten eggs, shut it off right away, evacuate your home and call 911. Exposure to natural gas can make you unwell, 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 inspected and cleaned if required.

Now that you know which furnace smells are normal and which ones aren’t, you’re ready to take care of your new heater. If you’re worried about an odd odor, our Diedrick's Heating and Air Conditioning HVAC technicians can help you. Give us a call at 920-833-7967 to schedule your appointment right now. We supply quality, affordable furnace repair in Seymour and surrounding areas.