how long do furnaces last

Without a doubt, before buying any HVAC system, one of the most asked questions is about the furnace’s lifespan. The lifespan of a furnace typically ranges between 15 to 30 years. Several things can affect the life of a furnace and that’s what we’re discussing in this article.

Read along to understand those factors and also get a brief of the top brands in the market today.

Factors Influencing the Durability of Furnaces

The duration for which a new furnace effectively operates before calling for a replacement is important for ensuring that your home remains comfortable and energy-efficient. Many factors play into this longevity, helping homeowners navigate their heating system options with greater insight.

A furnace's enduring functionality starts with its initial setup. Ensuring it's installed by seasoned professionals, in line with the manufacturer’s guidelines and local regulations, guarantees optimal efficiency and longevity. Conversely, subpar installations can lead to inefficient airflow, unnecessary strain, and frequent cycling—issues that notably shorten a furnace's life expectancy.

Keeping an electric or gas furnace in top condition is key to extending its lifespan. Qualified professional inspections and tune-ups should be considered for annual maintenance, with tasks such as checking blower motors, testing airflow, and assessing thermostats being routine. Homeowners should be vigilant for any operational irregularities—like strange sounds or a drop in heating capability—which could indicate repair needs.

The build and brand of a furnace affect its durability. Gas furnaces often last longer and operate more efficiently than oil-based models. Moreover, high-efficiency furnace units with higher Annual Fuel Utilization Efficiency (AFUE) ratings utilize advanced technologies that minimize energy consumption and mechanical wear, enhancing longevity, and reducing repair costs and the need to replace a furnace.

The lifespan of a furnace is also dictated by its operational demands, largely influenced by the local climate. In colder areas, such as Ontario, furnaces undergo more intensive use, which can hasten deterioration. The size of the home and the furnace's capacity also affect its operational stress. An overburdened, undersized furnace for a large space is likely to degrade faster.

The setting in which a furnace operates significantly affects its longevity. Units in dusty or chemically active areas may degrade faster due to air quality issues that can clog an air filter and strain the system.

Technological advancements can make older furnace models seem outdated. Newer furnaces often come equipped with sophisticated sensors and control systems that optimize efficiency and minimize the risk of malfunctions, a proactive approach to extending a unit's life.

Efficient furnace operation requires proper ventilation and maintained ductwork. Compromised ducts can overwork the furnace, leading to increased energy use and quicker wear. Regular inspections and maintenance of ductwork are essential for preserving furnace efficiency and longevity.

The type and purity of fuel used to influence how cleanly a furnace operates, impacting its efficiency and lifespan. Gas furnaces, for example, need a consistent supply of clean gas to avoid operational inefficiencies and potential damages.

Top Performing Furnace Brands

Carrier, Trane, and Lennox are widely recognized as leaders in the furnace industry, notable for their advanced features, efficiency, and diverse offerings tailored to different home heating needs:

These brands are celebrated for their furnaces equipped with adaptive features such as variable speed fans and modulating burners. For instance, models like Trane's XC95m and Carrier's Infinity 98 excel in adjusting their output precisely to meet the heating demands of a home, enhancing both comfort and efficiency.

High-end models from Lennox and Carrier are engineered to operate quietly, which significantly enhances home comfort by reducing the ambient noise often associated with heating systems. Similarly, Trane furnaces are designed with noise reduction technologies, ensuring quiet operation.

Demonstrating confidence in their product durability, these brands offer substantial warranties. Trane, for example, provides lifetime limited warranties on heat exchangers and generous warranties on other parts, aligning with the offerings from Lennox and Carrier.

These furnaces are among the most energy-efficient on the market. Models like the Lennox SLP98 can achieve efficiencies up to 98%, with Trane and Carrier also providing highly efficient models that could help reduce energy bills.

The wide range of models from Carrier, Trane, and Lennox ensures there is a suitable option for various home sizes and configurations, accommodating both small and large spaces efficiently.

How to Enhance the Life of your Heating System?

Ensuring your furnace operates at peak efficiency while prolonging its life is crucial for both comfort and cost savings. Let’s explore practical tips endorsed by Comfort Union, a top provider of HVAC solutions.

What Are Customers Saying?

Check out some of our latest reviews.

When it’s time to choose or upgrade your furnace, selecting a high-efficiency model is key. These furnaces are not just good for your wallet due to lower energy bills; they also endure less strain because of their efficient fuel use. A model with a high Annual Fuel Utilization Efficiency (AFUE) rating is especially beneficial, as it delivers the same warmth with less effort, reducing wear and tear.

Adding a smart thermostat to your heating system is a brilliant move. Far from mere schedule keepers, these gadgets adjust heating based on your daily patterns, minimizing unnecessary operation. This not only keeps your space consistently comfortable but also eases the load on your furnace, helping it last longer.

The importance of indoor air quality can’t be overstated. Furnaces forced to push air through dirty, clogged filters have to work harder, which can lead to overheating and quick degradation. Changing filters regularly is a simple yet effective way to maintain system efficiency and reduce the replacement cost of your furnaces.

Comfort Union stresses the importance of routine expert maintenance. Their seasoned technicians can identify and address potential issues before they escalate, ensuring your current furnace operates optimally. Regular check-ups help maintain efficient operation, significantly extending the life of your unit and ensuring your home remains a haven of warmth.

Braeden RigbyBraeden Rigby
19:47 25 May 24
Comfort Union should be your first choice for all your HVAC needs. Amazing family run business with a people first approach that is difficult to find. Highly recommended for anyone that values quality work !
premnath parthibanpremnath parthiban
14:52 23 May 24
I spent almost one year to find the best HVaC replacement company and finally landed with Comfort union .I initially thought it was a small job but then realized the magnitude of work and effort it goes into it ..Asif initially came to my house , explained to me everything in detail including what is code of guidelines expected by city of Calgary , that showed his knowledge on the whole process ..Then came his brother Moore for installation - you will never find such a wonderful person who knows in and out of the HVAC and moreover the most patient person I have ever seen .. he did the whole installation with absolute craftsmanship and love for the work he did .. the best part was his perfectness and every work he did was so perfect and tidy !Finally, came Khan ji - to do the final inspection to add perfectness over the perfectness carried by Moore .. He did inspection and made sure everything was 200% correct ..Overall , I would recommend comfort union over any other service provider …Replaced my furnace , water tank and my humidifier …
JJ YanJJ Yan
02:22 22 May 24
Muhamad and Darryl did an excellent job on installation of our new Bradford White 75 gallon water heater. Extremely professional and hard working. They not only just did the work, but also explained the procedure thoroughly and maintenance focus points. Kept the work place tidy and in order. Highly recommended to everyone. JJ
mr2008 2.0mr2008 2.0
04:08 12 May 24
excellent carrier furnace and air conditioner installation, highly recommend to others
ortizmm2002ortizmm2002
20:52 06 May 24
It was great to see a father and son team work so professionally in the delivery and installation of our new Bradford White water heater. Thanks team for a wonderful job.
Arman GillArman Gill
03:21 30 Apr 24
Friendly staff and did amazing work with carrier hvac
Inderpal SinghInderpal Singh
02:59 30 Apr 24
Amazing work. Good work on AC installation. Competive rates
Fast response due to the urgent occasions. The team is very experienced. Highly recommended!
Tushar AroraTushar Arora
23:04 06 Apr 24
Comfort union offers top notch furnace and hot water tank replacement services - contact the best furnace company in Calgary for all your needs. Highly recommended!!
Dipendra SitaulaDipendra Sitaula
18:28 02 Apr 24
Great and reliable service.
sunny Maharjansunny Maharjan
10:11 01 Apr 24
Best reasonable and quick in their response.
E TanE Tan
01:45 31 Mar 24
I recently hired Comfort Union to install a new hot water tank in my home, and I couldn't be more pleased with the results. They went above and beyond to ensure that the installation process was smooth and hassle-free from start to finish.Daryl's expertise and professionalism were evident from the moment he arrived at my home. He took the time to assess the layout of the space and discuss the best options for the installation, providing valuable insights and recommendations along the way. His attention to detail and commitment to quality craftsmanship were truly commendable.Throughout the installation process, Daryl and Mo worked efficiently and diligently, ensuring that everything was installed correctly and functioning optimally. They were respectful of my home, taking care to clean up any messes and leaving the work area spotless once the job was complete.I would like to extend my sincerest thanks to the entire team at Comfort Union for their outstanding service. Thanks to their expertise and dedication, I now have a reliable water heater that meets my needs perfectly. I would highly recommend Comfort Union to anyone in need of plumbing services – their professionalism and quality workmanship truly set them apart.
Ayaan DawoodAyaan Dawood
06:38 10 Mar 24
Imran Ahmed KhanImran Ahmed Khan
06:04 10 Mar 24
Maggie VaccaroMaggie Vaccaro
21:26 05 Mar 24
Quick response for appt. Came over and got all work done.Will call them again and will recommend them to others. Thanks!
Ashirul PatelAshirul Patel
22:57 26 Feb 24
We had great experience. They work out an efficient way to solve our furnace issues while maintaining the minimum cost.
Rakesh SachdevaRakesh Sachdeva
04:44 10 Feb 24
Muhammad is very professional and very cooperative. He has completed the work as explained. Everything was completed on same day we had issue. Very responsive.
Kly ClackKly Clack
22:28 08 Feb 24
Team at comfort union made me feel very comfortable about my purchases explained everything clearly and concisely so I could be confident in my decisions I would recommend them to anyone who asks.
Bhattarai AnuragBhattarai Anurag
02:33 07 Feb 24
Good service 👍🏽
Matt MelliesMatt Mellies
21:21 22 Jan 24
I had an issue with my furnace, went to reset my main breaker to power cycle trying to troubleshoot it... Breaker crapped out so I was sitting on an electrical, and furnace problem.Gave these guys a call and they were able to come out within 2 hours. Required a full main breaker replacement, and new gas valve on my furnace. They diagnosed it in only a couple hours, and fixed everything the same day.Had a great experience, the technicians that showed up were professional, and very knowledgeable. I'll definitely be using these guys when I eventually have replace my aging furnace.
Sharif ZayedSharif Zayed
00:15 22 Jan 24
Khan was so kind and considerate to help me during the -45 C calgary weather. We decided to replace our old furnace with newer and advance features choosing Carrier Furnace. We received the quote from Comfort Union which was competitively priced and the job was completed next day. Thanks.
Syed Zaigham RizviSyed Zaigham Rizvi
05:29 18 Jan 24
Had a bit of a crisis with rental property heating system in Calgary, our Goodman furnace gave out and had countless furnace repairs over the years. They got a new Carrier furnace installed quickly and very competitively priced compared to other carrier dealers. Wasn't expecting such quick service in the cold months. Definite recommend!
Mohammed SiddiqiMohammed Siddiqi
00:23 06 Jan 24
Absolutely stellar service from this HVAC company! The team was prompt, professional, and incredibly knowledgeable. They swiftly diagnosed and fixed our heating issue with precision. Their attention to detail and commitment to customer satisfaction truly set them apart. A 5-star experience – our go-to HVAC experts!
Agit KokuAgit Koku
21:40 13 Apr 23
I recently had Comfort Union come to my home to fix an issue with my hot water tank's pilot issue. Not only did the technician promptly fix the issue, but they also took the time to clean out my drain as a courtesy. I was impressed by their attention to detail and their commitment to providing excellent customer service.I would highly recommend Comfort Union for anyone in need of plumbing services.
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Investing in the right new equipment and care not only secures the longevity of your furnace but also safeguards the comfort of your home. Contact us today for all your furnace installation, furnace maintenance, and furnace replacement needs. That’s not all – we can also look at the air conditioner needs of your house.

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