When shopping for a new gas grill, you want the most bang for your buck, right? More often than not, BTU is one of the first factors you’ll consider. However, higher BTUs don’t necessarily mean a hotter grill. In fact, higher BTUs may mean that energy is being wasted to achieve and maintain temperatures. Today's grills are more efficient and don't need as much BTU output as they once did. In this article, we'll tell you what BTUs are, why they're important and how many you need.