Hybrid Rocket Stove

This Rocket Stove that is made from 4 cans and can be made by anyone with metal clippers. The efficiency of this stove surpasses any other rocket stove because it heats an unlimited supply of hot water at the same time that it cooks over the fire. Sound to good to be true? Check it out! Here is the link to the YouTube videos. May the world be blessed and thank God for this gift.