It’s no secret that ductless mini-splits are convenient, customizable and tremendously energy-efficient, but the benefits don’t stop there. With good upkeep and high-quality equipment, mini-splits can comfortably exceed the lifespans of many other climate control systems — here’s how.
What Is the Average Lifespan of a Mini-Split System?
Wear and tear is inevitable with any HVAC system, but in central AC units, it’s often exacerbated by excessive dust, poor airflow and other problems. Ductless mini-splits all but eliminate these issues, resulting in fewer repairs and more reliable, longer-lasting equipment. While there are many variables that can influence the longevity of individual systems, mini-splits typically boast impressive staying power:
- Expected lifespan: 12 to 20 years
- Average service life: 15 years
- High-end units: Up to 25 years
What Affects How Long a Mini-Split Lasts?
If you’re looking for a mini-split that’s truly a long-term investment, don’t just rely on luck. Pay close attention to these four key factors to ensure your system is made to last.
Brand and Build Quality
When it comes to longevity, it pays to start with premium equipment from a trusted brand. In addition to using better compressors and other components, top manufacturers typically have higher standards for testing and quality control. To play it safe, make sure any system you choose comes with a strong warranty and easily available replacement parts.
Design and Installation
From shoddy workmanship to improper sizing and placement, installation issues can undermine even the best ductless mini-splits. Conversely, skilled professional installers know how to precisely tailor your system to your home, helping to achieve optimal longevity, comfort and efficiency.
Level of Maintenance
Routine maintenance is often the biggest difference between a dependable, long-lasting mini-split and a premature system replacement. This includes DIY tasks like cleaning the filter and condenser coil, but it also includes scheduling annual service visits from qualified HVAC technicians.
Climate and Workload
Unfortunately, one variable you can’t control is the local environment. Because hot, humid conditions are common for much of the year here in Central Florida, your mini-split may not get much of a break. This added workload can take a toll over time, making it even more important to take great care of your equipment.
How To Make Your Mini-Split Last Longer
With a little know-how, there are plenty of ways to add extra life to your ductless mini-split. Roll up your sleeves and get started today with these five easy tips:
Clean Air Filters Monthly
If you’ve ever exercised while wearing a face mask, you know how much harder your body has to work when you can’t breathe freely. A dirty air filter has a similar effect on your mini-split, significantly reducing efficiency and increasing wear and tear. To keep your system operating at its best, check the air filter frequently and clean or replace it as needed.
Keep the Condenser Clear
Overlooking the condenser unit outside your home can have major impacts on performance and longevity. Make sure it’s getting enough airflow by regularly trimming nearby plants and clearing away leaves and other debris. If necessary, shut off power to the unit and use a garden hose to gently rinse off built-up dirt and grime.
Schedule Annual Maintenance
No matter how handy you are, there’s no substitute for annual maintenance visits by trained and qualified professionals. Authorized technicians perform a wide range of maintenance tasks, from checking refrigerant levels and electrical connections to flushing drain lines and deep-cleaning components. Not only does this help your system work better, but it aids in detecting and preventing potentially damaging malfunctions.
Install Surge Protection
When you live in the lightning capital of the United States, you can’t afford to leave your high-value appliances unprotected. Installing a surge protector is a sensible and cost-effective way to safeguard the sensitive electronics inside your mini-split, mitigating the risk of damage from voltage spikes.
Practice Energy-Saving Habits
Heating and cooling your home more efficiently doesn’t just save on utility bills — it puts less stress on your system. Letting your mini-split run in energy-saving mode is a great way to reduce its workload, as is raising the temperature whenever you’re asleep or away from home. You can even automate this process by installing and programming a compatible smart thermostat.
When Should You Replace a Mini-Split System?
No one likes paying to replace equipment before it’s necessary, but trying to squeeze extra life out of a failing HVAC system can be costly. To save yourself time, money and frustration, keep an eye out for the following red flags.
6 Warning Signs You Need To Know
- Poor comfort control
- Frequent cycling
- Loud or unusual noises
- Rising energy bills
- Tripping circuit breakers
- Costly, reoccuring repairs
Mini-Split vs. Central AC: Which Lasts Longer?
Both mini-splits and central AC systems are capable of delivering many years of cooling comfort, so which option is best for you? Here’s the tale of the tape:
Central Air Conditioning: 12-15 Years
With proper installation and maintenance, good AC units frequently remain efficient and reliable for well over a decade. Many also cost less to install in homes with existing ductwork, making them an appealing choice for budget-conscious homeowners. However, they typically require more upkeep and are less efficient on average than mini-splits.
Ductless Mini-Splits: 15-20+ Years
While you may pay more for a mini-split, you can also expect to enjoy several more years of top-notch performance. There are other advantages, too, including greater flexibility and better overall efficiency. While central AC systems generally range from 14 to 20 SEER, many ductless units clock in at 20 to 25 SEER or higher.
Best Long-Lasting Mini-Split Brands
Provided they’re cared for properly, most modern mini-splits should have no trouble lasting at least 10 to 12 years. Want to push those numbers even higher? Look for top-shelf models from reputable manufacturers that offer strong warranties and proven performance. Among the best mini-split brands currently on the market are:
1. Mitsubishi Electric
Mitsubishi is the most popular ductless HVAC brand in the United States, and for good reason. Their systems employ advanced engineering and technology to deliver world-class performance, and they have a long-established reputation for reliability. It’s not uncommon for well-maintained Mitsubishi units to stay in operation for up to 20 years.
If something does go sideways, getting authentic replacement parts is a breeze. In addition, all Mitsubishi mini-splits feature a standard 5-year warranty with a 7-year warranty for the compressor. Qualifying installations can even receive extended warranties up to 12 years.
2. Fujitsu
Don’t mind paying a bit more? Some Fujitsu mini-splits can induce a bit of sticker shock, but their outstanding durability and performance are well worth the cost. Indeed, Fujitsu makes some of the most powerful and energy-efficient mini-splits available today.
In terms of sheer reliability, Fujitsu systems are as good as it gets. Manufacturer defects are exceedingly rare, and all units include the same standard 5-year parts and 7-year compressor warranties as Mitsubishi. However, the available extended warranty falls slightly short at 10 years.
3. Daikin
Mitsubishi may be America’s top choice, but Daikin is the leading mini-split manufacturer globally. That means their products have undergone extensive real-world testing, and they’ve proven to be highly reliable across a wide range of conditions.
While Daikin’s top offerings can’t quite measure up to the best, even their entry-level products offer impressive quality and craftsmanship. What’s more, all ductless systems are backed by generous 10- or 12-year warranties.
4. GREE
GREE ductless mini-splits are proof you don’t have to pay a fortune for equipment that lasts. Though not as well-known as other labels, GREE has plenty of dependable and effective systems designed for cost-conscious homeowners. Many even use the same underlying parts as units from big-name brands.
Once again, GREE mini-splits come with standard warranties covering parts for 5 years and compressors for 7 years. Unfortunately, extended 10-year warranties are only available through select dealers.
5. LG
With a wide range of aesthetic options and form factors, LG mini-splits are designed to look great. Luckily, this isn’t a case of form over function. LG products are known for being easy to use and rock-solid reliable, often hitting the 15-year mark with proper care.
Of course, nothing is guaranteed, which is why LG offers a standard 5-year warranty with an extra two years for compressors. The warranty period can be bumped up to a full 10 years for qualifying installations registered within 60 days.
FAQs About Mini-Split Lifespan
Do mini-splits need to be serviced?
Annual professional maintenance is incredibly important for ductless mini-splits. Not only is it key to preventing serious malfunctions, but it’s often required to keep your system under warranty.
Is it OK to run a mini-split all day?
Yes, especially if you have a variable-speed inverter system. These units are specifically designed to run continuously, adjusting their output in real time to maintain a consistent temperature.
How often should I replace filters?
Mini-split filters should typically be cleaned every few weeks and replaced at least every two months. You may need to change filters more frequently if you have pets or during periods of higher usage.
What’s the most common cause of early failure?
Most mini-splits that break down prematurely do so because of poor maintenance. Shoddy installation work is also a common factor, especially with less reputable technicians.
Can a mini-split last 25 years?
A quarter-century is an exceptional lifespan, but it is indeed possible with a combination of top-of-the-line equipment and diligent professional maintenance.
Invest in Longevity From Day One
A new ductless mini-split is a big investment, but you’ll always get your money’s worth with One Hour Air Conditioning & Heating. Our experienced technicians are trained to install the finest mini-split units on the market, ensuring precise sizing and optimal performance.
What’s more, our stellar service doesn’t stop at the point of sale. We offer expert maintenance and repair services throughout Clearwater, FL and surrounding communities. Give us a call today for all your ductless mini-split needs — we’re always on time or you don’t pay a dime!