HVAC systems have come a long way from putting ice in front of a fan to cool and using the fireplace for your heat source. If you are in need for a new system or feel that yours is running a bit on the inefficient side, this article is designed to help give you some basic knowledge to start looking for a new unit. The SEER rating, size, and AFUE are all things that you should have an idea about when you start talking with salesmen. The first mentioned SEER rating stands for Seasonal Energy Efficiency Rating. The higher the
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