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.  
Canopy glue and/or CA, paint, and a few other items are also necessary to complete the kit. 

 

A note about the size: I designed the model with a footprint of 6" diameter and height of 7.25". I felt this was perhaps good for most HO layouts. This required scaling it to 82% of the original size, in HO scale Hence I coined it “DR-82”, meaning "Drain, Oregon, 82%". As it turns out, this is still large for many HO layouts.

 

I also have what I refer to as 80% and 70% sized models for sale. See the "Burners For Sale" page, which provides an explanation of what I mean by "80%" and "70%", with photos. I try to keep them in stock, however these are often made-to-order as they sell out quickly.
 

 

Please note that I am no longer including the variable-temperature soldering iron with the kit. This is the tool which I prefer to “weld” the 3-D printed PLA material together. I understand that CA works equally well. The instructions include some information about using CA effectively.