Have you recently had a new furnace put in and are now experiencing an unusual 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 expect it to go away, as well as three other furnace smells you shouldn’t ignore.
Why Your New Furnace Smells
There are two explanations 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 like carbon monoxide naturally created during the heating process.
When your furnace operates for the first couple of times, the coating may give off 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 persists. A burning smell that sticks around can mean the motor has overheated or there’s an electrical problem, among other issues.
Dust accumulates inside your furnace when it’s idle in warm weather. That dust will burn off when you switch on your furnace in the fall, creating a burning smell. This smell should disappear within a few minutes.
One way you can decrease 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 properly 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 can happen. 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 issue. Electrical wiring is coated in plastic to prevent shocks, and this smell is an indication that heat is melting this protective coating. To avoid a fire, turn off your furnace immediately and have it inspected out by an HVAC technician.
- Gas or rotten eggs. Gas companies add sulfur to natural gas to warn you when there’s a leak. If your furnace smells like gas or rotten eggs, turn it off immediately, evacuate your home and dial 911. Exposure to natural gas can make you sick, plus it’s highly flammable and explosive.
- Musty. If your furnace smells musty, you might have mold and mildew flourishing in your ductwork. We advise having your ductwork checked and cleaned if needed.
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 ACS Heating and Air Conditioning HVAC technicians can help. Contact us at 770-450-1539 to schedule your appointment today. We offer quality, affordable furnace repair in Tucker and surrounding communities.