Have you recently had a new furnace put in and are now noticing a strange smell? You’re not alone, because plenty of other homeowners also experience this 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 ignore.

Why Your New Furnace Smells

There are two factors why a new furnace might stink.

Protective Finishing

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

When your furnace starts for the first couple of times, the coating may release a burning smell. This is typical and the smell should go away the more your furnace operates.

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

Dust

Dust builds inside your furnace when it’s not running in the summer. That dust will burn off when you switch on your furnace in the fall, creating a burning smell. This smell should go away within a few minutes.

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

3 Other Furnace Smells You Shouldn’t Ignore

While it’s less common for a new system to require furnace repair, it happens. Here are three other smells 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 issue. Electrical wiring is coated in plastic to protect against shocks, and this smell is an indication that heat is melting this precautionary coating. To avoid a fire, switch off your furnace right away and have it checked out by an HVAC technician.
  2. Gas or rotten eggs. Gas companies include sulfur in natural gas to signal you when there’s a leakage. If your furnace smells like gas or rotten eggs, turn it off right away, evacuate your home and call 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 recommend having your ductwork examined and cleaned if necessary.

Now that you understand which furnace smells are normal and which ones aren’t, you’re prepared to take care of your new heating system. If you’re worried about an odd odor, our Cooks Air Conditioning and Heating Specialists HVAC technicians can assist you. Give us a call at 386-313-8766 to schedule your appointment now. We offer quality, affordable furnace repair in Palm Coast and surrounding communities.