If you get the central air conditioner properly installed, then the unit would be securely sealed and no energy can be wasted, which saves you money. When one talks about saving money with efficient a/c systems, the subject of SEER usually comes up Air Conditioning Service Dallas . SEER, or Seasonal Energy Efficiency Ratio, rates the central air unit. To keep it easy, the greater the SEER, the more efficient your central conditioning system is, meaning the more money you save, and the more youre helping the environment.
Central air cooling systems have been operating on Freon for a long time, however, this is apparently going to change. Freon will be replaced with Puron, which is friendlier to the environment. This change is supposed to happen no later than the year 2010. Even though the systems would initially cost more, keeping the systems with Freon will cost you much more, as it would be tough to find the parts if they were to ever break down. Since the parts for the older systems would no longer be produced, it would be tough to get them, as they will become very rare. So in the end, it will probably save you more money to get the new cooling system with Freon.
The cost is the one reason lots of people do not go for central cooling systems. Considering that it must be installed first, the cost for the system is more. However, it cools your house much faster, and is not a big eye sore like the unit a/c systems. So you make the decision if you pay a little more, it can provide you more benefits.