This is the HO scale KIT version of the Sawdust Burner, located in Drain, Oregon, USA, which I have studied.  The kit includes all of the 3D-printed parts and other materials, sans paint and adhesives, necessary to complete the burner you see here in the photos. Thorough, detailed written instructions are included. Also included are full-color images of the prototype, a copy official documents noting the Drain is listed on the Oregon Historic Places list, and with more details, and architectural information. For this kit, there is also a 2.5 hour YouTube video accompaniment, with chapters, that you can access anytime for further clarification on how I build the models.  
Though not specifically marked, all current kits are shipping as the Special Edition versions, which mean they come with a variable-temperature soldering iron that can “weld” the 3-D printed PLA material.  Canopy glue and/or CA, paint, and a few other items are also necessary to complete the kit.  In order to keep the footprint at 6" and the height at 7", which I felt perhaps good for HO layouts I have scaled it to 82% of the original size, in HO scale, hence the name “DR-82”.
This is a “do-able” kit. I have tested it without warning on innocent victims, with 100% success. I was even told that my glue-work is sloppy.  That’s okay. I trust that you can be even more careful and less messy with the white glue than I. Good luck!