A furnace is a big investment, so it’s natural to wonder how long you’ll get out of it. While most can last up to a couple of decades, the exact lifespan depends on a number of factors, including the type of unit you have, how well it’s maintained, and its location. While some can outrun the expected lifespan by several years, others may need replacement early due to increased wear and tear.
In this guide, we’ll explore the average life expectancy of different furnaces, the top factors that affect their service life, and signs it might be time for an upgrade.
What Is the Average Lifespan of a Furnace?
The average lifespan of a furnace is between 15 and 20 years, but it varies depending on the type of system you have. The life expectancy for common furnace types includes the following:
- Naturally gas: 15 to 20 years
- Electric: 20 to 30 years
- Propane: 15 to 20 years
- Oil: 15 to 25 years
- Wood: 10 to 20 years
Once your furnace starts nearing its lifespan, you may notice it struggles to keep up with your heating needs. That’s because, over time, wear and tear begins to take its toll on the unit, leading to reduced efficiency, frequent repairs, and higher utility bills. While proper maintenance can help extend its life, it won’t last forever.
Factors That Affect Furnace Lifespan
While most last around 15 years, several factors can influence how long your furnace will actually last. Proper use, installation, and maintenance make all the difference when it comes to extending your furnace’s lifespan. The top factors that impact how long your furnace will last include:
- Size: Choosing the right furnace size for your home is key to maximizing its lifespan. A furnace that’s too small has to run constantly to properly heat your home, while a furnace that’s too large will often short cycle and put excess strain on the components, leading to premature breakdown.
- Installation: Always hire a reputable professional for furnace installation. A poorly installed unit can lead to airflow problems, frequent breakdowns, and a shorter lifespan.
- Thermostat settings: Turning your thermostat temperature too high or low puts excess strain on your furnace, making it work harder and wear out faster. Keeping the temperature between 68 and 70 degrees helps maximize efficiency and extend the system’s lifespan.
- Maintenance: Without professional maintenance, minor issues can quickly turn into costly repairs and premature failure. Scheduling routine maintenance at least once a year helps keep everything running smoothly for years to come.
- Location: Furnaces operate best in a climate-controlled space, such as a utility closet or garage. Installing them in an area prone to higher temperatures, such as an attic or crawl space, can lead to overheating and early wear.
Signs You Need a New Furnace
When your furnace is nearing the end of its lifespan, it’ll start to show signs that it’s on its last legs. Knowing the signs to watch out for helps you stay ahead of unexpected breakdowns and schedule replacement before you’re left in the cold. The top indicators you’re due for an upgrade include:
- It’s nearing the end of its lifespan: If your furnace is around 15 to 20 years old, it might be time to start thinking about replacement. Older furnaces become less efficient over time and are more prone to breakdown. Replacing it can help you avoid unexpected failure and costly repairs.
- Visible damage: If you notice cracks, rust, or other damage on your furnace, it’s probably time for a replacement. These damages are often beyond repair and can lead to inefficiency, safety risks, and complete breakdown.
- You’re hearing strange noises: Banging, grinding, screeching, or other loud noises coming from your furnace are often a sign of serious issues. There may be worn-out components, loose parts, or a failing motor, which can lead to complete system failure.
- It’s constantly breaking down: If you’re constantly having to call for furnace repair, replacement may be your best option. Upgrading to a new, reliable furnace offers peace of mind and can save you money in the long run.
- The unit won’t turn on: If your furnace won’t turn on at all, you could be dealing with complete system failure. While some issues may be fixable, others indicate the need for replacement.
Furnace Maintenance Tips to Help You Get the Most Out of Your System
The best way to extend your furnace’s lifespan is to schedule preventative maintenance at least once per year. During the appointment, an experienced technician will thoroughly clean, inspect, and tune up your system to keep it running in top condition. If they notice any minor issues, they’ll quickly repair them to prevent them from progressing, helping you avoid costly repairs and breakdowns down the line.
Along with professional maintenance, there are several maintenance tasks you can do at home that can help you get the most out of your system, including:
- Changing the air filter every 90 days
- Keeping vents and registers clear
- Cleaning off dust and debris that build up around the system
- Optimize your thermostat settings to maximize efficiency
Is It Better to Repair or Replace a Furnace?
While quick fixes like a part replacement or clogged filter are easy to repair, some circumstances prompt replacement as a better option. If your furnace is constantly breaking down, nearing the end of its lifespan, or your repair bills are adding up, upgrading your unit could save you money and frustration in the long run. The best rule of thumb is if repair bills are over half the price of a new unit, replacement is likely the smarter investment. Installing a new system will help improve energy efficiency, maximize home comfort, and eliminate the stress of dealing with constant repairs.
Call Ricky to Schedule Furnace Replacement Today!
Whether your furnace is nearing the end of its lifespan or starting to show signs of trouble, the team at Ricky Heath is here to help. We offer comprehensive furnace services in Macon and surrounding areas to keep your home warm and cozy when the chilly winter days arrive. You can count on us for all your furnace needs, from repairs and maintenance to installation and replacement.
Call us or book online to schedule your furnace service today!
Frequently Asked Questions
My furnace is showing error codes. Does this mean I need to replace it?
Furnace error codes can mean a number of things, from minor issues like a dirty filter to serious problems like a failing ignition system. Understanding how to read these codes can help you determine whether it’s a quick fix or a sign of a more serious issue. If you’re having trouble, contact our team. We’ll help you understand what the error code means and recommend the best course of action.
Why are some rooms in my home much colder than others?
Several issues can cause the temperature to vary throughout your home. The most common culprits include dirty air filters, blocked ductwork, and poor insulation. If you’re struggling with uneven temperatures, give us a call. We’ll assess your unit to determine the underlying issue and determine whether repair or replacement is best.
