Nope. They were all coal fired. The Germans kept excellent records of all coal deliveries to these camps. Jews officially acknowledge this. However, their official rebuttal is that as Germany was falling the Nazi took time to destroy all their records and falsify all of the transportation records, especially including the coal records. Honk Honk. Use of wood would have massively increased the workload to keep them at temp and would massively increased maintenance and downtime on the crematoriums because of all the ash, creosote, and other combustion byproducts associated with wood. In fact, it likely would have resulted in the destruction of the crematoriums. His analysis is actually pretty good for napkin math. Your commentary says far more about you than his analysis.