The heating, ventilation, and air conditioning (HVAC) system controls the air quality, temperature, and humidity within houses and offices. It cools and heats the home and improves the indoor air quality, allowing you to change the temperature as per your comfort. Hence, they are essential in all seasons.
In general, they last only for 15-25 years, depending on the location of your home, type of system, usage, etc. Even with regular maintenance and care, HVACs will eventually run its course. However, proper care is required for them to function properly. So, in this blog, we have discussed all you should know about the lifespan of HVAC systems.
What is the Lifespan of HVAC Systems?
The HVAC system usually lasts up to 20 years. Its lifespan depends on various factors, such as usage, environmental conditions, and maintenance. Here are some HVAC systems and their lifespan:
Heat Pumps
Depending on the usage and frequency, heat pumps may last for 10 to 20 years. However, many heat pumps are expected to last only for 15 years. They are similar to air conditioning, as they both provide heating and cooling. If you reside near a coastal region, heat pumps may not last that long. Hence, they can fail within 7-12 years.
Boilers
Boilers, if kept properly, can last for 20 - 35 years. They are usually replaced when the age of the boiler exceeds 35 years. Also, if the heat exchangers stop working or leak in between and the repair cost is too high, consider replacing the boiler.
Air Conditioning
Air conditioners usually last for 15 to 20 years if maintained well. If you live in coastal areas, air conditioning units may last only 7 - 12 years due to salt exposure. If the airflow is weak and the AC is not cooling, it may be nearing its end. Also, when the AC starts spewing a musty stench, you should look for mold growth as this could be an indication that the unit needs to be replaced. The frequency of use also affects the longevity of the air conditioner.
Furnaces
Gas furnaces usually last for 20 - 30 years, and oil furnaces last only for 10 - 15 years, depending on the upkeep. However, if the unit is poorly maintained, it only lasts for 10 years or less. They are usually replaced when the heat exchangers start leaking.
Here’s a summary of the HVAC system lifespan -
HVAC Lifespan
Heat Pumps 10 - 20 Years
Boilers 20 - 35 Years
Air Conditioning 15 - 20 Years
Furnaces 20 - 30 Years
A lack of maintenance can lead to early wear and tear of the HVAC. It also leads to motor blower failure and may also cause frequent on-and-off cycling. In addition, there are several factors that reduce the lifespan of HVAC systems -
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Poor maintenance.
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Defective components of the HVAC system.
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Improper usage and installation.
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Excessive usage and high loads.
Signs You Need HVAC System Replacement
Every HVAC system needs to be replaced at some point in time. Here are the warning signs that you should replace your HVAC system -
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Screeching, squealing, banging, or whirring sounds coming from HVAC.
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A burning smell is coming out of your air conditioner or furnace.
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A musty or earthy smell, usually of mold and mildew.
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Aging HVAC that don’t function properly.
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HVAC with frequent repair requirements.
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Inconsistent indoor temperature.
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Higher utility bills.
How to Extend the Lifespan of HVAC System?
To prolong the lifespan of HVAC systems, make sure you are timely with their servicing and maintenance. This also saves you from high energy bills. During the maintenance process, filters are cleaned, inspected, and replaced if needed. Refrigerants are also replaced if the need arises. Technicians recommend using the ‘auto’ switch on the HVAC system to give it a rest. This also makes it energy efficient.
Regular servicing takes care of smaller issues that can cause greater damage in the long run. It is also advisable to check and clean your HVAC filter once a month. If they seem okay, consider only cleaning them. Cleaning a filter ensures the specks of dirt don’t clog them. This is because a dirty filter can reduce the efficiency of the HVAC system. If you see even a little damage, get them replaced.
However, if the HVAC system needs repair now and then, it’s best that you replace it with a new one. While getting a new system, consider your home’s setting and environmental conditions shady or sunny. Get a qualified and experienced technician to suggest an affordable HVAC brand. You can also check out brand user reviews on the internet.
Conclusion
No matter how well the HVAC system is being maintained, eventually, their lifespan will come to an end. This means you’ll need to get a new unit rather than investing in frequent repairs. But, before you decide to replace the unit, consider consulting an HVAC professional to ensure you’re making a smart financial decision.