Scraping Sounds If your furnace is making a scraping noise, this may be a sign of worn out ball bearings. On the other hand, the blower wheel may have also come loose. It’s best to turn the heat off and call a certified HVAC professional in your neighborhood.
Why does my furnace sound like a saw?
If your furnace starts to make scraping noises, especially the sound of metal scraping metal, something is likely loose and needs to be fixed immediately. There is probably a problem with your blower wheel. If your blower wheel is broken, you will notice your furnace not heating properly to warm your home.
What does a bad furnace sound like?
Homeowners often notice a popping sound when the furnace begins a cycle. This is due to warm air that hits the cold metal of the ducts, which causes expansion and produces that noise. When the popping noise is louder, your gas furnace’s burners may be dirty.
What does a cracked heat exchanger sound like?
If you have a crack in the heat exchanger, you are likely to hear a rattling noise as your thermostat turns on the heat. Because the heat exchanger is made out of metal, as it is heated cracks will expand/contract, and can cause rattling, popping, and/or banging noises.
Why does my furnace sound like a jackhammer?
Typically, when a heater makes a loud banging noise when it turns off, it’s the sound of metal contracting. As the furnace cycles, air is pushed through the duct system into your living areas. A dirty filter restricts airflow, causing warm air to back up in the system.
When should I worry about my furnace noise?
In most cases, it is wise to call a service technician. A pinging or popping sound is most likely coming from one of the ducts and is not really something to worry about. If you hear an odd vibrating noise or whining, it may indicate a problem with your furnace and a technician really needs to check it out.
Can a furnace explode?
The short answer is yes, it is possible for your furnace to explode. But it is highly unlikely especially with the build of modern furnaces, which include high safety standards to decrease the risk of an explosion.
What does a bad blower motor sound like?
A defective blower motor will make a continuous sound noticeable by the passengers in the vehicle. It can manifest as a knocking, whirring, clunking, vibrating, squealing, or whining noise that persists until the blower motor is replaced.
How long do furnaces usually last?
15 to 20 years
A well-maintained furnace can last at least 15 to 20 years, but completing annual maintenance and being diligent with repairs can extend its life even longer.
How do I stop my furnace duct from making noise?
Here are two ways to solve the problem:
- Seal and insulate your ducts. Wrapping your ducts in insulation should solve your “cold winter morning” heating duct popping noise. …
- Replace your ducts. Replacing your ducts is usually more cost effective than insulating them.
Why does my furnace sound like a lawn mower?
To troubleshoot, start by checking and replacing air filters, cleaning the dust buildup from, and inspecting blower belts. All of these can cause your blower to be working harder, thus a louder sound from the physical blower motor.
Why does my furnace keep making a banging noise?
Banging Sounds
If your furnace is making a loud booming or banging noise, the problem may be caused by a small gas explosion that happens when there’s a delay in ignition. Gas can build up in your combustion chamber when the gas burners in your furnace do not ignite on time.
How much does it cost to replace a blower motor in a furnace?
$400 to $600
On average nationwide, a furnace blower motor replacement costs $400 to $600, including parts and labor. A single-speed blower motor costs around $450 to replace while a variable-speed motor costs $600 or more. You’ll also need to budget labor, about $75 to $125 per hour.
How much is a new furnace?
A new furnace replacement can cost between $3,000 – $7,600, depending on the size of your home, the efficiency of your new furnace, and the sophistication of the equipment. That includes labor and permit fees, not just equipment costs.
How much is a furnace for a 1500 square-foot house?
between $2,990 and $4,360
The average cost to replace a gas furnace in a 1500-square-foot house is between $2,990 and $4,360. For a standard-efficiency gas furnace, a 60,000-80,000 BTU model is the best choice.
How much is a new furnace for a 2000 square-foot house?
The average cost range for purchasing and installing a gas furnace designed to heat a 2,000-square-foot home with a 97% efficiency rating ranges from $4,000 to $8,000, with most homeowners spending around $6,000 total on a high-efficiency gas furnace replacement in a 2,000 sq. ft.
Why is replacing a furnace so expensive?
1 – Long-Term Investment
The number one reason why your furnace installation costs so much is because you are paying for a long-term investment. Like we mentioned earlier in this article, your furnace will last up to 15 years or more.
What size furnace do I need for a 1500 square-foot home?
A 1,500-square-foot home will require between 45,000 to 90,000 BTUs. A 1,800-square-foot home will require between 55,000 to 110,000 BTUs. A 2,100-square-foot home will require between 65,000 to 125,000 BTUs.
How often should a furnace be replaced?
The average furnace lasts approximately 18–20 years, though the actual number depends on the furnace itself and the level of care put into maintaining it during its lifespan.
