Extending the life of an HVAC system is doable. So, unfortunately, is shortening its expected service life. The combined average life expectancy of an air conditioner and furnace averages about 15 years. Typically, the furnace lasts longer than the A/C. However, that 15-year estimate is based on the assumption that both systems are professionally installed, receive regular maintenance and are operated according to manufacturer’s recommendations. If that doesn’t happen, all bets are off.
To increases the odds of extending the life of an HVAC system, avoid these mistakes:
- Unqualified installation. Every new furnace or air conditioner should be properly sized to the BTU requirements of the home before installation. This means an accurate load calculation must be performed by a professional HVAC contractor. Over-sized and under-sized units not only under-perform in heating and cooling and cost more to operate, they tend to wear out much sooner.
- Skipping annual check-ups. Your furnace or air conditioner manufacturer’s warranty probably requires yearly professional maintenance. That’s because it’s vital to maximize expected service life. Each unit should get seasonal preventive maintenance from a qualified HVAC technician at the outset of the heating and cooling seasons, respectively.
- Ignoring important upkeep. As the homeowner, you can contribute to longer service life by changing the system air filter monthly—an easy DIY procedure that’s also inexpensive when you buy replacement filters in multi-packs. A dirty, clogged filter reduces system airflow. Low airflow not only raises operating costs, it also over-stresses vital system components like the air conditioner compressor and furnace heat exchanger. Early failure of these very expensive parts may mean early replacement of the entire unit.
- Inefficient operation. Use of an outmoded manual thermostat often means the the furnace or air conditioner is cycled on and off much more frequently. This adds to system wear and tear, shortens expected service life and consumes more energy. A digital programmable thermostat automates temperature changes with fewer on/off cycles to maintain a more comfortable indoor environment at lower cost.
Ask the experts at Apollo Home Heating, Cooling and Plumbing for more advice about extending the life of an HVAC system.