Have you recently had a new furnace set up and are now experiencing a weird smell? You’re not alone, because a lot of other homeowners also experience this at first. Let’s review what’s creating this smell, and when you can look forward to it to disappear, as well as three other furnace smells you shouldn’t ignore.

Why Your New Furnace Smells

There are two explanations why a new furnace might stink.

Protective Coating

Your furnace has a special application on specific parts to keep them from rusting. This may include the heat exchanger, which safely exhausts gases including carbon monoxide naturally created during the heating process.

When your furnace runs 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 heats.

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

Dust

Dust collects inside your furnace when it’s not running in the spring and summer. That dust will burn off when you flip on your furnace in the fall, producing 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 every single year. This is necessary 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 require furnace repair, it can happen. Here are three other smells 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 prevent shocks, and this smell is a signal that heat is melting this precautionary coating. To hinder a fire, turn off your furnace immediately and have it checked out by an HVAC technician.
  2. Gas or rotten eggs. Gas companies include sulfur in natural gas to alert you when there’s a leakage. If your furnace smells like gas or rotten eggs, turn it off right away, evacuate your home and contact 911. Exposure to natural gas can make you ill, plus it’s extremely flammable and explosive.
  3. Musty. If your furnace smells musty, you might have mold and mildew flourishing in your ductwork. We advise having your ductwork examined and cleaned if necessary.

Now that you know which furnace smells are normal and which ones aren’t, you’re ready to take care of your new heating system. If you have concerns about a weird odor, our Kohles & Bach Heating & Cooling HVAC technicians can help you. Give us a call at 515-207-6569 to schedule your appointment right now. We provide quality, affordable furnace repair in Des Moines and surrounding neighborhoods.