If you get the central air conditioner properly installed then the unit would be tightly sealed and no energy can be wasted, which saves you money. When one talks about saving money through efficient air conditioning systems the topic of SEER usually comes up. SEER or seasonal energy efficiency ratio, rates the central air conditioning unit. To keep it simple the higher the SEER the more efficient your central conditioning system is, meaning the more money you save and the more you're saving the environment.

Central air cooling systems have been running on Freon for many years, but this is apparently going to change. Freon will be replaced with Puron, which is friendlier to the environment. This change is expected to occur no later than the year 2010. Even thought the systems would initially cost more, keeping the systems with Freon will cost you even more, as it would be hard to find the parts if they were to ever break down. Because the parts for the older systems would no longer be manufactured, it would be hard to get them as they will become quite rare. So in the end it will in probably save you more money to get the new cooling system with Freon.

The cost is the one reason many people do not go for central cooling systems. Since it must be installed first, the cost for the system is more. But it cools your house faster and is not a big eye sore as the unit air conditioning systems. So you make the decision, if you pay a little more it can give you more benefits.