Instant heating from our PowerFlamer stoves enables high efficiency and reduces your cost of cooking: Our test has shown that with our highly efficient PowerFlamer stove, you can spend less than US$20 to cook for two persons’ meal for an entire year. This showcases our PowerFlamer stoves’ instant heat-up benefit. Cooking each dish requires less time, hence making each propane tank to last longer. For an average 40 minutes cooking time each week, each tank can last about 9 months. You can obtain a tank of propane for $13, even in California. This is how we calculate less than $20 for all our meals for last year.