Have you recently had a new furnace set up and are now having 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 look forward to it to subside, as well as three other furnace smells you shouldn’t disregard.

Why Your New Furnace Smells

There are two factors why a new furnace might reek.

Protective Coating

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

When your furnace runs for the first couple of times, the coating may give off a burning smell. This is standard and the smell should dissipate 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 remains can mean the motor has overheated or there’s an electrical problem, among other problems.

Dust

Dust builds inside your furnace when it’s idle in the spring and summer. 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 required to keep your valuable manufacturer’s warranty valid, plus it keeps your furnace clean and ensures it will run perfectly 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 difficulties. Electrical wiring is protected in plastic to avoid shocks, and this smell is an indication that heat is melting this precautionary coating. To prevent a fire, switch off your furnace as soon as possible and have it inspected out by an HVAC technician.
  2. Gas or rotten eggs. Gas companies add sulfur to natural gas to signal you when there’s a leakage. If your furnace smells like gas or rotten eggs, turn it off as soon as possible, get out of your home and contact 911. Exposure to natural gas can make you ill, plus it’s very flammable and explosive.
  3. Musty. If your furnace smells musty, you might have mold and mildew growing in your ductwork. We suggest having your ductwork inspected and cleaned if needed.

Now that you are aware which furnace smells are normal and which ones aren’t, you’re prepared to take care of your new furnace. If you have concerns about a strange odor, our Done Right Air HVAC technicians can help you. Call us at 414-207-4034 to schedule your appointment now. We provide quality, affordable furnace repair in Milwaukee and surrounding areas.