Have you recently had a new furnace put in and are now having an unusual smell? You’re not alone, because many other homeowners also have this happen at first. Let’s review what’s creating this smell, and when you can expect it to go away, 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 Coating

Your furnace has a special coating on some parts to keep them from rusting. This may include the heat exchanger, which safely gets rid of gases like carbon monoxide naturally created 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 dissipate the more your furnace heats.

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

Dust

Dust builds inside your furnace when it’s idle in the spring and summer. That dust will burn off when you switch on your furnace in the fall, making 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 every single year. This is needed to keep your valuable manufacturer’s warranty valid, plus it keeps your furnace clean and ensures it will run smoothly during the upcoming heating season.

3 Other Furnace Smells You Shouldn’t Ignore

While it’s less common for a new system to need furnace repair, it happens. Here are three other smells you should keep an eye out for and what they might mean.

  1. Burning plastic or rubber. If your furnace smells like burning plastic, you might have an electrical problem. Electrical wiring is coated in plastic to avoid shocks, and this smell is an indication that heat is melting this precautionary coating. To hinder a fire, shut off your furnace as soon as possible 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 problem. If your furnace smells like gas or rotten eggs, shut it off right away, leave your home and dial 911. Exposure to natural gas can make you unwell, plus it’s highly flammable and explosive.
  3. Musty. If your furnace smells musty, you might have mold and mildew developing in your ductwork. We advise having your ductwork checked and cleaned if required.

Now that you know which furnace smells are normal and which ones aren’t, you’re ready to take care of your new furnace. If you’re worried about a strange odor, our Giordanos Heating and Air Conditioning HVAC technicians can help you. Contact us at 203-772-8319 to schedule your appointment right now. We offer quality, affordable furnace repair in Derby and surrounding neighborhoods.