The specific heat of water is 1 calorie/gram Â°C = 4.186 joule/gram Â°C which is higher than any other common substance. As a result, water plays a very important role in temperature regulation.
Central air conditioners typically last from 10 to 15 years. The lifespan of a central cooling unit may be reduced if its capacity is not properly matched to the cooling load of the home.
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.