This steamer was installed in the fall of 2011. It is fueled by a biomass system that burns sawdust to create electricity. Walnut lumber goes into the steamer, prior to drying. Notice in the pictures that the green walnut is a combination of both light and dark wood. Steaming allows for the deep dark color to bleed through all the lumber. Walnut remains in the steamer for four days. After it is steamed it goes to the stick building to be prepared for drying.