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 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 stink.

Protective Coating

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

When your furnace starts 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 persists. A burning smell that remains can mean the motor is too hot or there’s an electrical problem, among other concerns.

Dust

Dust builds inside your furnace when it’s not running in warm weather. That dust will burn off when you switch on your furnace in the fall, making a burning smell. This smell should go away 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 Disregard

While it’s less common for a new system to require furnace repair, it can happen. 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 protected in plastic to protect against shocks, and this smell is an indication that heat is melting this preventive coating. To hinder a fire, switch off your furnace as soon as possible and have it examined out by an HVAC technician.
  2. Gas or rotten eggs. Gas companies add sulfur to natural gas to warn you when there’s a problem. If your furnace smells like gas or rotten eggs, shut it off immediately, leave your home and dial 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 developing in your ductwork. We advise having your ductwork examined and cleaned if needed.

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 have concerns about a weird odor, our Bishop’s HVAC HVAC technicians can help you. Contact us at 916-591-6889 to schedule your appointment now. We supply quality, affordable furnace repair in Sacramento and surrounding areas.