Have you recently had a new furnace installed and are now noticing an unusual 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 expect it to disappear, as well as three other furnace smells you shouldn’t disregard.
Why Your New Furnace Smells
There are two reasons why a new furnace might smell.
Your furnace has a special coating on certain parts to keep them from rusting. This may include the heat exchanger, which safely exhausts gases such as carbon monoxide naturally created during the heating process.
When your furnace operates 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 lingers can mean the motor has overheated or there’s an electrical problem, among other concerns.
Dust accumulates inside your furnace when it’s not running in the spring and summer. 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 reduce 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 odors you should watch 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 a sign that heat is melting this protective coating. To prevent a fire, turn off your furnace immediately 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, turn it off right away, evacuate your home and dial 911. Exposure to natural gas can make you ill, plus it’s extremely flammable and explosive.
- Musty. If your furnace smells musty, you might have mold and mildew flourishing 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 heating system. If you have concerns about a strange odor, our JTech Mechanical HVAC technicians can assist you. Contact us at 281-231-8768 to schedule your appointment today. We offer quality, affordable furnace repair in Magnolia and surrounding areas.