Have you recently had a new furnace put in and are now experiencing a strange 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 anticipate it to disappear, as well as three other furnace smells you shouldn’t neglect.

Why Your New Furnace Smells

There are two explanations why a new furnace might reek.

Protective Coating

Your furnace has a special finish on some parts to keep them from rusting. This may include the heat exchanger, which safely removes gases including carbon monoxide naturally made during the heating process.

When your furnace operates for the first couple of times, the coating may release a burning smell. This is typical and the smell should dissipate the more your furnace operates.

To be on the safe side, you’ll want to connect with a heating and cooling company if the smell persists. A burning smell that sticks around can mean the motor has overheated or there’s an electrical problem, among other problems.

Dust

Dust accumulates inside your furnace when it’s off 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 lessen or prevent this smell is by having furnace maintenance done every single year. This is required to keep your valuable manufacturer’s warranty valid, plus it keeps your furnace clean and ensures it will run smoothly during the upcoming heating time of year.

3 Other Furnace Smells You Shouldn’t Dismiss

While it’s less common for a new system to need furnace repair, it can happen. Here are three other scents 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 problem. Electrical wiring is coated in plastic to prevent shocks, and this smell is a signal that heat is melting this preventive coating. To avoid a fire, turn off your furnace as soon as possible and have it examined out by an HVAC technician.
  2. Gas or rotten eggs. Gas companies add sulfur to natural gas to alert you when there’s a problem. 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 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 suggest having your ductwork examined and cleaned if required.

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 have concerns about a weird odor, our AW Heating & Air Conditioning HVAC technicians can help. Contact us at 402-438-7992 to schedule your appointment today. We offer quality, affordable furnace repair in Lincoln and surrounding communities.