Have you recently had a new furnace set up and are now noticing a strange smell? You’re not alone, because many other homeowners also have this happen at first. Let’s review what’s leading to this smell, and when you can expect it to go away, 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 stink.

Protective Finishing

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

When your furnace runs for the first couple of times, the coating may emit a burning smell. This is standard and the smell should go away the more your furnace heats.

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

Dust

Dust builds inside your furnace when it’s off in the spring and summer. That dust will burn off when you turn on your furnace in the fall, producing 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 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 season.

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 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 difficulties. Electrical wiring is protected in plastic to prevent shocks, and this smell is a sign that heat is melting this preventive coating. To hinder a fire, shut off your furnace immediately and have it examined out by an HVAC technician.
  2. Gas or rotten eggs. Gas companies include sulfur in natural gas to warn you when there’s a leakage. If your furnace smells like gas or rotten eggs, shut it off right away, evacuate your home and call 911. Exposure to natural gas can make you sick, 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 suggest having your ductwork checked and cleaned if required.

Now that you are aware which furnace smells are normal and which ones aren’t, you’re ready to take care of your new furnace. If you have concerns about a strange odor, our Air Current AC & Heat HVAC technicians can assist you. Call us at 713-322-4318 to schedule your appointment today. We provide quality, affordable furnace repair in Houston and surrounding neighborhoods.