Have you recently had a new furnace installed and are now noticing a weird smell? You're not alone, because many other homeowners also have this happen at first. Let’s review what’s causing this smell, and when you can anticipate it to go away, as well as three other furnace smells you shouldn’t ignore.
Why Your New Furnace Smells
There are two reasons why a new furnace might smell.
Your furnace has a special coating on specific parts to keep them from rusting. This may include the heat exchanger, which safely exhausts gases like carbon monoxide naturally produced during the heating process.
When your furnace operates for the first couple of times, the coating may emit a burning smell. This is normal 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 persists. A burning smell that lingers can mean the motor has overheated or there’s an electrical problem, among other issues.
Dust collects inside your furnace when it’s not running in warm weather. That dust will burn off when you turn on your furnace in the fall, creating a burning smell. This smell should disappear within a few minutes.
One way you can lessen or prevent this smell is by having furnace maintenance done each year. This is necessary 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 Disregard
While it’s less common for a new system to need furnace repair, it happens. Here are three other smells you should look out for and what they might mean.
- Burning plastic or rubber. If your furnace smells like burning plastic, you might have an electrical problem. Electrical wiring is covered in plastic to protect against shocks, and this smell is an indication that heat is melting this protective coating. To avoid a fire, turn off your furnace right away and have it checked out by an HVAC technician.
- 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, evacuate your home and dial 911. Exposure to natural gas can make you sick, plus it’s extremely flammable and explosive.
- Musty. If your furnace smells musty, you might have mold and mildew growing in your ductwork. We recommend having your ductwork inspected and cleaned if necessary.
Now that you know which furnace smells are normal and which ones aren’t, you’re well-equipped to take care of your new furnace. If you're worried about an odd odor, our Air Service Co. HVAC technicians can help. Contact us at 918-212-8943 to schedule your appointment today. We offer quality, affordable furnace repair in Muldrow and surrounding areas.