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.
The Average Air Conditioner Lifespan. The average air conditioner lifespan is around 15-20 years, according to the U.S. Department of Energy. While there is no way you can guarantee that your unit will last forever, there ARE a number of things that you can do to make sure it lasts as long as possible.1  Keep up on maintenance.2  Keep shrubs and other debris away from your condenser. 3  Change your air filters regularly.ince the average air conditioning system costs a minimum of around $3,000, depending on the size of your house and your existing duct system, itâs important to your household budget to get as much use out of it as possible.