The worst thing young adults can do is go to graduate school because they aren't sure what else to do or they can't find jobs. Grad school, after all, is often an extremely long commitment. A Ph.D., for example, can take six years.
The average lifespan for an air conditioner is 10 to 15 years. Some air conditioners last up to 20 years. As interesting as these data points may be, they don't tell you the whole story. The issue is that a variety of factors affect the lifespan of an air conditioner.
1 Longer AC lifespan. 2  The average lifespan of an air conditioner is from 10 to 20 years, but some can last up to 30 years. 3  How long your system lasts will depend on how well it's maintained. 4  Cooling systems that receive little or no care may not even last for 10 years.he HVAC contractors at Air Conditioning South East recommend preventive maintenance every spring, just before the warm weather begins. Your system works 24/7 to keep you cool, and it needs regular care to perform properly.