In this article, we’ve performed an analysis of how various factors affect the life expectancy of HVAC systems. This will aid you in accurately estimating the life of your current system. Additionally, we provide best practices for maintaining your system and ensuring it lasts for months and years to come.
The factors are:
- System Types: Some system types last longer than others.
- Climate: Systems in harsher climates will not last as long as systems in more moderate areas.
- Usage Patterns: Systems used for only a few months out of the year in a second residence will stay operational for longer amounts of time than systems used year-round.
- Home Size: If a system is undersized or oversized to the size of the home, the efficiency and life span will be affected.
- Maintenance Frequency: Properly maintained systems will last longer than systems that are not properly maintained.
- System Quality: Higher quality systems carry a higher initial cost, but last longer over time.
HVAC Life Expectancy by System Type
Central air conditioners will carry a different lifespan than boilers, for example. This table breaks down what you should expect based on your system type.
| System Type | Life Expectancy |
| Central Air Conditioners | 15 – 20 Years |
| Heat Pumps | 10 – 15 Years |
| Boilers | 20 – 30 Years |
| Furnaces | 15-20 Years |
HVAC Life Expectancy by Climate
How extreme the climate is will determine how long the HVAC system can last. If the system is running on overdrive for years at a time due to the climate, the components will wear faster.
| Climate Type | Life Expectancy |
| High Heat & Humidity | 10 – 12 Years |
| Extreme Cold | 10 – 15 Years |
| Coastal Areas | 7 – 12 Years |
| Dust & Sand | 12 – 18 Years |
| Mild Climates | 15 – 25 Years |
HVAC Life Expectancy by Usage Patterns
Some people run their HVAC systems year-round, while some only run it seasonally at their second home. This table breaks down how usage patterns affect the lifespan.
| Usage Pattern | Life Expectancy |
| Constant | 10 – 15 Years |
| Seasonal | 15 – 20 Years |
| High Intensity (Commercial) | 15 – 20 Years |
| Minimal Use | 20 – 25 Years |
HVAC Life Expectancy by Home Size
Home size will affect how long the HVAC system will last due to the ease of air loss in larger areas and the system compensating for a larger area.
| Home Size | Life Expectancy |
| Small Home/Apartment (up to 1,500 sq ft) | 15 – 25 Years |
| Medium Sized Home (1,500 to 2,500 sq ft) | 15 – 20 Years |
| Large Home (2,500 or more sq ft) | 10 – 15 Years |
HVAC Life Expectancy by Maintenance Frequency
For this section, we have broken down how maintenance frequency will increase or decrease the lifespan of a system.
| Maintenance Frequency | Effect on Life Expectancy |
| Annual | Increase 20% – 30% |
| Semi-Annual | Increase 30% – 50% |
| Quarterly | Increase Up to 50% |
| Lack of Maintenance | Reduce 30% – 50% |
HVAC Life Expectancy by System Quality
In some cases, it is better to spend extra upfront for a quality system to save money over time. This section shows the effects of purchasing higher quality versus lower quality systems.
| System Quality | Effect on Life Expectancy |
| Reputable Manufacturer | Increase 20% – 30% |
| Modern System | Increase 15% – 25% |
| Higher SEER / EER Ratings | Increase 10% – 20% |
| Professional Installation | Increase 15% – 25% |
| Cheaper / Lower Quality Systems | Reduce 20% – 30% |
Increasing Your System Lifespan
To conclude, we’ve included a few points regarding increasing system lifespan.
Regular Maintenace and Servicing
Frequently having professionals service your system will vastly increase the lifespan of your system. Annual check-ups will be sufficient for most homeowners.
Click here to learn about our HVAC maintenance services.
Proper Use and Thermostat Management
Setting reasonable temperatures and using programmable thermostats to reduce system usage when the house is empty will go a long way towards prolonging your HVAC system. Smart thermostats are optimal for this.
Click here to learn about smart thermostat installation.
Addressing Issues Promptly
If you notice strange noises, reduced efficiency, or inconsistent temperatures, it is best to have a professional technician check the system promptly to ensure permanent damage is not being done. Doing this will increase your system’s lifespan dramatically.
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