You have to remember one thing about the Caldera Cone. It is designed as a precision tuned SYSTEM that only works when all the pieces are used together. That is to say, if you switch the burner, the system will lose efficiency, or worse, fail. The cone creates an environment that is designed to concentrate and contain all the BTU's put out by the burner. If you use a different stove with "more power" you will end up using more fuel and will likely burn up the cone resulting in catastrophic failure. The Caldera System is designed for efficiency, not necessarily speed. Will it boil 2 cups of water in under 2 minutes? No. Will it boil 2 cups of water with less than a half ounce of fuel? Yes. The biggest thing to remember about the Caldera is that it is not a nifty cone-like pot stand with a center burner stove inside that can be switched around on a whim. It is a complete cooking unit that relies on all its components to work properly. The guys over at Trail Designs have spent far too much time tuning this system to be the most efficient thing possible. (What do you expect, they're backpacking engineers. Translation= Hopelessly perpetual tinkerers) If you remember that the Caldera is only the Caldera when you use only Caldera parts, you'll be all right. Trust the Cone.