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

Why Your New Furnace Smells

There are two factors why a new furnace might reek.

Protective Finishing

Your furnace has a special application on some parts to keep them from rusting. This may include the heat exchanger, which safely removes gases including carbon monoxide naturally created 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 disperse the more your furnace operates.

To be on the safe side, you’ll want to contact a heating and cooling company if the smell persists. A burning smell that sticks around 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 idle in warm weather. That dust will burn off when you flip on your furnace in the fall, producing a burning smell. This smell should go away within a few minutes.

One way you can lessen or prevent this smell is by having furnace maintenance done every year. This is required to keep your valuable manufacturer’s warranty good, plus it keeps your furnace clean and ensures it will run properly during the upcoming heating period.

3 Other Furnace Smells You Shouldn’t Dismiss

While it’s less common for a new system to need furnace repair, it happens. 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 issue. Electrical wiring is coated in plastic to avoid shocks, and this smell is a signal that heat is melting this protective coating. To prevent a fire, shut off your furnace immediately and have it checked out by an HVAC technician.
  2. Gas or rotten eggs. Gas companies add sulfur to natural gas to signal you when there’s a problem. If your furnace smells like gas or rotten eggs, turn it off right away, evacuate your home and call 911. Exposure to natural gas can make you sick, 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 necessary.

Now that you know which furnace smells are normal and which ones aren’t, you’re prepared to take care of your new heating system. If you have concerns about a strange odor, our Ambience HVAC, Inc. HVAC technicians can help. Give us a call at 302-239-HVAC (4822) to schedule your appointment today. We offer quality, affordable furnace repair in Wilmington and surrounding neighborhoods.