I designed this “rocket” heater and led construction on it during BioConstruyendo Patagonia in February of 2012. The idea was to create a wood-fired heater for a multiple-use common area at CIDEP, a permaculture teaching and research center. The heater had to create heated seating as well as form a partition between two parts of the room. Parameters for the design included available space, projected flows of people within the space, available materials, and known limits of the rocket system. The final product had combustion gases traveling through approximately 25 feet of flue within a bench and backrest constructed of adobe bricks made on-site.