How to buy and install an efficient central air conditioning system with a high SEER rating http://factoidz.com/how-to-buy-and-install-an-e... How do you find a good central air conditioning system? The way that central air conditioners are rated is according to their seasonal energy efficient ratio (SEER). The seer is a calculation of the cooling output divided by the power input, which brings up an approximate climate average. Therefore,...
