I just purchased a duplex and both HVACs were installed in 2009.

How long on average does an HVAC system last? I'm trying to figure out how soon I'll need to replace them.

Question from user CardiologistNo8333 at hvacadvice at reddit.

Answer:

The average lifespan of an HVAC system can vary depending on several factors, including the quality of the equipment, regular maintenance, usage patterns, and environmental conditions. However, a general estimate for the lifespan of an HVAC system is around 15 to 20 years.

Since the HVAC systems in your duplex were installed in 2009, they are already 14 years old as of 2023. While they may still have some life left, it's worth considering the potential need for replacement in the near future.

To assess the condition and remaining lifespan of your HVAC systems more accurately, it is recommended to have them inspected by a professional HVAC technician. They can evaluate the current state of the equipment, identify any potential issues, and provide guidance on whether replacement or repairs are necessary.

Regular maintenance, such as changing filters, cleaning coils, and scheduling professional tune-ups, can help extend the lifespan of your HVAC systems. Additionally, consider monitoring their performance for any signs of declining efficiency or frequent breakdowns, as these may indicate a need for replacement or major repairs.

Ultimately, it's essential to plan for the eventual replacement of your HVAC systems, especially given their age. Budgeting for replacements and exploring energy-efficient options can help you make informed decisions when the time comes to upgrade your duplex's HVAC systems.

how long does a typical hvac last