Here is an exciting innovation combining the advantages of a rocket-fired combustion box with the practicality and efficiency of a wood-fired barrel oven.Â This idea was developed by Flemming Abrahamsson of Fornyet Energi in Denmark.Â See also his brilliant Rocket-Fired Griddle Oven Design, which further combines a cooktop griddle to the configuration.
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This is an important evolution in the barrel oven concept because it both improves combustion and does away with the need for the additional hardware beyond the barrel of a firebox door, grate and ash drawer.Â Notice the very simple yet clever sections sketched at 1 and 2 which demonstrate how the flue path is baffled to improve heat exchange.
Flemming has agreed to provide these drawings and the photos of a build sequence for free in order to maximize their potential reach.Â You can contact Flemming for project specific design/consultation and also for barrel oven hardware in Europe.