Have you recently had a new furnace installed and are now experiencing a weird smell? You’re not alone, because many other homeowners also experience this at first. Let’s review what’s leading to 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 stink.

Protective Finish

Your furnace has a special coating on certain parts to keep them from rusting. This may include the heat exchanger, which safely removes gases such as carbon monoxide naturally created during the heating process.

When your furnace starts for the first couple of times, the coating may give off a burning smell. This is normal and the smell should disperse the more your furnace runs.

To be on the safe side, you’ll want to call a heating and cooling company if the smell lingers. A burning smell that remains can mean the motor is too hot or there’s an electrical problem, among other problems.

Dust

Dust builds inside your furnace when it’s off in warm weather. That dust will burn off when you flip on your furnace in the fall, making a burning smell. This smell should subside within a few minutes.

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

3 Other Furnace Smells You Shouldn’t Ignore

While it’s less common for a new system to require furnace repair, it can happen. Here are three other odors you should watch 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 covered in plastic to protect against shocks, and this smell is a sign that heat is melting this preventive coating. To hinder a fire, switch 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 alert you when there’s a problem. 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 sick, plus it’s very flammable and explosive.
  3. Musty. If your furnace smells musty, you might have mold and mildew developing in your ductwork. We suggest having your ductwork inspected and cleaned if needed.

Now that you know which furnace smells are normal and which ones aren’t, you’re prepared to take care of your new heater. If you’re worried about a weird odor, our Service Max Heating & Air Conditioning HVAC technicians can help you. Contact us at 360-255-5857 to schedule your appointment today. We supply quality, affordable furnace repair in Arlington and surrounding neighborhoods.