Now is the time to get rid of your old cooling system and look into a new high efficiency cooling system. Depending upon what part of the country you’re in and how much you can spend you may want to look into a 15 or higher SEER air-conditioning system. Depending upon the size of your current unit you could save as much as 30% on your heating and cooling bills with a properly sized high efficiency cooling system. Another thing to look for is an air-conditioner that uses puron or an equivalent for cooling. Not only will it save you money then, but also it will be less hazardous to the environment. Switch to a new high efficiency cooling system this summer, go green and chill out.