Will Your Furnace Make It Through the Winter: 7 Signs It May be Time for a New One

Even though a furnace will diligently serve you for over 15 years, monitoring its functionality is essential. Faulty or old furnaces are inefficient, costly, and prone to breakdowns, especially when needed most. Fortunately, the best HVAC systems experts can help inspect, repair, or replace your furnace.

On that note, let us explore telltale signs that your unit is in dire need of repairs or a replacement.

1. Your Furnace is More than 15 Years Old

Though this is subjective, there is no doubt the older a machine gets, the more problems it causes. Although furnaces may last for up to three decades, their efficiency drops considerably when they reach a ripe age of 15 years. This comes with sharp rises in electricity bills, frequent maintenance, and unbearable noises.

In contrast, newer furnaces are designed to be energy efficient, saving you a few bucks on energy bills. They consume less power but produce outstanding results. They are also easy to operate, smaller, and cheap to maintain. They, too, may require minor repairs but will still work optimally.

Replacing an aged furnace with a newer one is crucial as it enhances efficiency. For this, talk to experts for advice on which brand suits your home. And if the current appliance can function after repair, they will still do it.

2. Producing Unexplainable Noises

The blowing fan, moving belts, and the effects of heat on metals will cause the typical sound of a furnace. However, rattling sounds should capture your attention. It is one of the effective furnace malfunctioning signals to keep in mind. Rattling indicates loose parts within the unit or the motor is off-balance. A technician will quickly diagnose the problem and fix it to avoid further damage.

Metal on metal clank shows something is not right with the blower or the fun. In most cases, it could be the fan brushing off against the blower’s housing. Clanks should be handled by furnace repair experts only.

A person, possibly noting one of the "7 Signs It's Time for a New Furnace," is removing a dirty air filter from an HVAC system. The rectangular filter, framed in metal, is visibly dusty. Wearing jeans and beige shoes, they stand on a gray floor as they tackle this essential maintenance task.

3. Release Excess Dirt and Dust

Old furnaces are to be blamed for dusty and dirty homes. Dust accumulates in their filters over time, causing ineffectiveness. At this point, they will start producing clouds of dust and dirt. However, a  quick replacement of old filters with new ones would do just right.

To tell whether your furnace is the leading cause of dirt and dust, carefully observe the air blowing out of your HVAC. If the filter component is the leading cause, expect a cloud of dust to push around your house once switched on. Breathing in dusty air has negative impacts on your health. Therefore, it would be best to  consider an urgent furnace repair or replacement.

Entrusting your furnace to a professional technician will help solve the situation. The expert will tell whether the filter should be repaired or replaced. You might as well replace the filter with careful consultation of the manual.

4. You are Paying for What You Aren’t Receiving.

Most furnaces are equipped to provide much-needed heat for survival in the fall at a pocket-friendly cost. If you start paying for more than you are getting, it’s time to replace your heating unit.

Unfortunately, most homeowners are reluctant to let go of their old furnaces. But do you know  modern furnaces are designed to achieve up to 98% energy efficiency. On the flip side, ageing furnaces achieve close to half of that.

Therefore, it means you are likely to spend twice as much on an old furnace than a modern one. In addition, aged furnace maintenance costs and constant failure can be stressful during cold weather. It would be sensible to replace your HVAC unit with a modern one because they are energy efficient.

5. No Longer Controls Humidity

Furnaces don’t have a complex system that regulates humidity, but they control it nonetheless. When your home is dry, a valve in the humidistat opens up. As water trickles down to the honeycomb-like metal structure, dry air from the fan is moisturized to restore normal humidity levels in your home.

In winter, the air is usually drier due to low temperatures that freeze out water molecules. It causes lips and heels to crack, increases nosebleeds, and destroys wooden furniture. High humidity, on the other hand, harbors dangerous fungi that cause diseases. Thus, balancing humidity is good for your health and home.

If your furnace can’t manage interior humidity, consider replacing it. Some will cause unprecedented damage even though they are warming up your home. Finally, always engage experts when such problems arise.

A technician in a blue shirt works diligently on a furnace system in a basement, surrounded by tools, wires, and a pink container on the floor.

6. Frequent Repairs have Increased Considerably

Functioning furnaces require repairs due to expected wear and tear that are as a result of moving parts. Normally, this will be after a few months or a year. Replacing furnaces is much cheaper when the period between repairs shortens substantially. This is because the increased frequency of HVAC repair costs more than spending on a new unit.

7. There are Visible Cracks and Rust Marks

Rusting is a sign that your appliance has outlived its purpose. It shows that the metal components are disintegrating and can no longer function well. This might be due to a lack of oil or water trickling down into the machine.

Creative users will try to isolate the problem first before looking for possible solutions. Homeowners can mitigate the issue by oiling moving parts, repainting rusty casing, and sealing leakages. If this doesn’t work, advanced measures provided by experts should be a solution to the problem.

Opposed to rusting, visible cracks are caused by mechanical damage. Perhaps something heavy dropped on the unit, or it accidentally fell down when mounting it. Superficial cracks require minor repairs, while deep gashes may call for a replacement.

Key Takeaway

In a nutshell, furnaces are crucial for our survival during cold weather. That is why it is important to test their reliability before the onset of winter. Good furnaces run silently and have no rust marks.

It would be best to replace your unit when it is over 15 years old, consume more power and release dirt and dust into the air. Although furnace replacement is a DIY project for some, it’s always advisable to involve the experts to avoid making mistakes with the installation or replacement.

Other than help with your furnace, you can liaise with professionals about water-related problems. At Aquarius Home Services, we have mastered water softening skills and serve businesses and families in MN &WI. We use cutting-edge technology and state-of-the-art equipment to treat water, ensuring that our clients’ households access quality water. Contact us today for help!

Kevin Palmer
Kevin Palmer
1736962876
Cole and Dirk were at my house today for routine water softener maintenance service. They did a terrific job - tested the water, serviced the softener and patiently explained what they were doing throughout the process. I highly recommend Aquarius.
Gary Gaffner
Gary Gaffner
1736961472
Justin and Caillou were very knowledgeable and thorough in checking out our water softener. They clearly answered any questions we had and we would definitely have them out again.
Connie Irvin
Connie Irvin
1736959556
Joe is very friendly, knowledgeable, and professional. He also went the extra mile and filled the water softener with salt for me which was so appreciated. Best wishes always to he & his family.
Karen Duhn
Karen Duhn
1736953232
Eric Walton
Eric Walton
1736950654
Our experience with Josiah was a great one. He was knowledgeable, explained all of our options and offered fair price quotes. Highly recommended!
denise altonen
denise altonen
1736908762
Two water experts came to check our problem this morning, we thought it was the water softener. Jon and Ryan, told us we needed a plumber, they were so nice and thorough! That lead to Josiah coming right over! What a nice person Josiah is! He came to assess and repair our sump pump check valve and assess our water heater problem, turned out we needed a new water heater. Josiah got it ready for replacement and replaced the shut off valve and check valve on the sump pump. Josiah got everything set up for the next crew to come in and replace the water heater, the whole process was seamless. Adam and Joe came in to install the new water heater! Yay! They were equally as nice and knowledgeable, got the install done in a timely fashion. Cleaned up and checked the waterpressure. We have had great service today from all the Aquarius techs!!!Thank you, Denise and Deb
John and Colleen Sorensen
John and Colleen Sorensen
1736905301
Amazing experience with 3 great employees, Shawn, Jennifer and Erik. I highly recommend this company. Had Kinetico system and tankless water heater installed. Very satisfied.
Gregory Grau
Gregory Grau
1736903931
I had a tankless water heater descaled. Excellent job. Also had many questions about other plumbing matters and Josiah answered them all. Very impressed!
Yvonne Fox
Yvonne Fox
1736898053
Justin Johnston
Justin Johnston
1736895577
Ryan was professional and did excellent work!
Udo E. Schulz
Udo E. Schulz
1736890563
Jake was very Professional, helpful and effective and specific with his explanations
Michelle Doyle
Michelle Doyle
1736889354
Debra Layer
Debra Layer
1736884506
Erica Wilebski
Erica Wilebski
1736879133
We have had Aquarius out to our house for years, but Mike was amazing. Explained things that no one‘s ever explained to us about our system. We really appreciate him!
Garrett Maas
Garrett Maas
1736878076
Wonderful experience! Very knowledgeable and professional.
Julie Buol
Julie Buol
1736877329
Chris explained everything to me that I needed to know. He was polite and curtious. He did an amazing job fixing all of our plumbing issues. We're very pleased!
Shannon Canas
Shannon Canas
1736877255
Great job! Easy and no issues
gale dawson
gale dawson
1736873967
Bryan Svobodny
Bryan Svobodny
1736871364
Cole was personable. He was knowledgeable. He answered all of my questions. He took great care while in our house. I wouldn’t hesitate to recommend him to others, and will be requesting him during future visits if available.
Emily McClellan
Emily McClellan
1736869784
Chad Reisner
Chad Reisner
1736812739
Ryan and Sawyer did a fantastic job with our install today. They were professional, smart, well mannered, and knowledgeable. I wish we could have them for dinner they were that great. They asked for our opinions on placement and catered to our wants, they left no traces of being here, demonstrated everything and went over it so we would understand. They were fun to be around and we were impressed by their work and attitudes. Would recommend them 100 out of 100 times.
Rob Reinke
Rob Reinke
1736807893
We had Cole out for our 6 month service check-up. He was very respectful and explained everything to my wife as I was not home. He also detailed in his service report was was done and the readings that he found when doing his tests. Excellent customer service Cole..!!
Justin Glaser
Justin Glaser
1736807030
Great experience in total, Craig in sales was very informative and Dirk did a great job installing.
Meredith Yager
Meredith Yager
1736806120
We acquired a water filtration system when we bought our home. We finally got around to having someone come and take a look at the system to ensure it was functioning properly and to replace filters, etc. Cole was an absolute pleasure to work with! Very knowledgeable, informative and thoughtful! Would recommend to anyone not feeling super confident in how their system works and what to look out for when it starts to fail.Thank you Cole!!
Babu Gaddam
Babu Gaddam
1736805537
Mike is highly knowledgeable and has done a fabulous job. He is quite patient in explaining the problem and addressing adequately. He is an asset to any organization.
Ashley Sinkula
Ashley Sinkula
1736805254
Working with this company was great, easy and seamless. Excellent communication as well. Full of knowledge but not pushy. Highly recommend!
Kenneth Fusaro
Kenneth Fusaro
1736801412
Ethan just left from a furnace tuneup. He was very professional and worked efficiently. He answered my questions. You guys do a great job! Thank you, and kudos to Ethan!
Nate Herrmann
Nate Herrmann
1736801060
Aquarius water systems truly stands out with their excellent service! From start to finish, the entire process was quick and seamless. The team was professional, knowledgeable, and genuinely cared about addressing my needs. They took time to explain all my options and ensured I was confident in my decision. If you are looking for a company that delivers top-notch professional service and quality products, Aquarius Water Systems is the way to go. Highly recommend!
Shawn Butler
Shawn Butler
1736799306
Ann Fankhanel
Ann Fankhanel
1736797635
Eric, was on time, very polite, efficient and explained everything clearly and helpfully. I would definitely recommend him and Aquarius Home Services to anyone.
Deb Williamson
Deb Williamson
1736797600
Marcus was very thorough reviewing the photos he took as part of the annual tune-up. Good explanations of down the road repairs and costs.
Jan Johnson
Jan Johnson
1736795060
We received exceptional service from Erik. The valves he installed were in a very tight space and took a lot of finesse to put in. Erik also took great care to protect our floors.
Pete Janzen
Pete Janzen
1736794565
Knowledgeable, practical, great customer service, friendly - very good professional!
James jensen
James jensen
1736788430
Lynn Peters
Lynn Peters
1736784691
Jodie Cartier
Jodie Cartier
1736784429
Nick is both friendly and professional. I highly recommend using him as your HVAC technician.
Hilde Polum
Hilde Polum
1736781851
Cole and Caillou were great. They explained what they were doing and made recommendations. They were very friendly and respectful.Unfortunately, I realized a couple of days later that the hot water faucet, which had been working fine prior to getting the system flushed, no longer put out water. It was a very quick and simple fix for Chris to reconnect the hot water dispenser to the system, after it was left disconnected. If I'd known what to do, I could have done it myself. Everyone involved was pleasant and courteous.
Michael Hinz
Michael Hinz
1736733161
My 22 month old furnace from Aquarius wasn't heating correctly. Aquarius was able to send technician Nick the same day and all is well. So glad it's still under warranty. Great job!I want to add an update as the weather gets colder. Technicians Brent on 11/21/24 and Nick on 1/8/25 did a great job getting my furnace operating so it heats the house. As of yesterday 1/11/25 I have found more water flowing from some internal place in the furnace. To get things to heat properly I have to leave the cover open & put a small towel to soak up water and change it every 3-4 hours. I have included photos of where the water is corroding the metal inside, and a second one showing where I have to put the towel. It may be a safety hazard but what am I going to do? I wonder if this is a defective furnace built during Covid times when everything went wrong. I would like someone from Aquarius (maybe a couple of your great problem solvers) to schedule an appointment with us to fix it once and for all, or replace my new furnace if it comes to that. Thanks!
Karen Arcand
Karen Arcand
1736706132
tim regan
tim regan
1736673214
Alec came for furnace tune up. Did great job. Impressed with everything he checked for and explained.Jon came to check the Kinetico Water System and got the system working the way it is supposed to. Fine tuned the system. Did a great job. Very knowledgeable about the entire process.Both men very knowledgeable about the systems that they were working with.
Louie Ritacco
Louie Ritacco
1736627489
Steven Guthrie
Steven Guthrie
1736559201
My Experience with Aquarius was Five Star Plus from beginning to end. Everyone involved was highly professional and explained everything to me as they did the job. Thank You All for a very positive experience.
Josh mcginnity
Josh mcginnity
1736558955
Both Nick and Wyatt were very personable and professional from the moment they arrived to the time they left. Put down a rug at the front door and wore boot coverings while walking thru our home. Diagnosed problem and gave options for repair. Once repair was chosen they went the work quickly getting the parts needed and making the repair. Tested out system for proper operation and notified when complete explaining and answering any questions.
katie Weller
katie Weller
1736558515
Michael was extremely nice and answered all my questions.
Dean Wennberg
Dean Wennberg
1736549417
Mark Grabe
Mark Grabe
1736544323
Very skilled technician.
Kenny Marton
Kenny Marton
1736543884
Great service. Very knowledgeable with all my questions. Thank you.
Rachel Rutherford
Rachel Rutherford
1736539983
On time, explained everything, showed me what was wrong and fixed it. Couldn't be happier.
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