One thing when buying a new central heating and air conditioning is to always do your research. What I mean by that is to make sure you know exactly what you are buying. It could be that you need to learn more about a heating and air conditioning system brand, or maybe you just need to check the SEER ratings of the central heating and cooling units you are thinking about investing in. No matter what the case, research is most certainly needed. Also you will want to research the local heating and air conditioning suppliers or dealerships to see who has the best prices in heating and air conditioning systems. All places are going to be similar because the going rates of heat and a/c units are what they are. However, you may be able to find an unexpected sale on a brand new, up to date and usually very expensive central heating and air conditioning system unit for more than half off if you look around enough! I got lucky and was able to find a central heating and air conditioning system that usually cost over 8 thousand bucks that was on sale for 4 thousand bucks. That was half off the regular price! You can not find deals like that every single day of your life when it comes to buying central heating and air conditioning systems of any kind or any brand. I found this deal by simply doing my research. So that is one example why research is important before going in to buy a brand new heating and air conditioning unit.