As an expert in the field of energy and home cooling, I have helped countless families in California find the perfect air conditioner for their 2,000-square-foot homes. One of the most crucial factors to consider when selecting an air conditioner is the BTU, or British Thermal Unit, measurement. While it may seem like a simple number on a technical label, understanding the significance of BTUs can greatly impact the efficiency and effectiveness of your air conditioning system. In this article, I will delve into the importance of BTUs and provide you with all the information you need to determine the right size air conditioner for your 2,000 square foot home.