That gives me a target temp for building a regenerative bio char kiln * , Thanks!

* in a regenerative kiln, volotiles are captured and fed to a burner to provide the bulk of the heat needed to char organic materials, the chared materials can do double duty as soil amendments and long term carbon storage or as fuel for a variety of uses. Also the volotiles can be condenced as liquids that have a wide variety of other uses. What would be interesting is if there might be a way to use an enhanced combustion process to capture extra atmospheric nitrogen in the bio char materials.