The air conditioning needs of the muggy, humid southeast summers require different methods for sizing and equipment selection than the hot, arid summers in the southwest. In certain parts of the country, the quality of electric power distribution causes brown-outs or worse.
Good contractors will do a lot more than ask you how much you want to spend on a new system. When selecting the best air conditioning and heating system for your needs, contractors consider:
1. Where you live and what the climate is like.
It is a myth that age alone can make a system fail, so be wary of anyone that tells you otherwise. If you are considering repairing or replacing your old unit, you need to look at how often you run your system.