"""The """"4 Block"""" Rocket Stove! - DIY Rocket Stove - (Concrete/Cinder Block ...How to make a """"FOUR BLOCK"""" Rocket Stove! Easy DIY. Four concrete blocks is all it takes to make it!. Cost $5.16. video shows you how to put it together. the stove funnels all its heat up under the bottom of the pan. uses very little fuel. fueled by small sticks, twigs and leaves. cooks great. wind and rain resistant)"""
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