Q: "I am looking at the plans Missoula1 model... I am interested in building one of these. I see in the video the original model has a chimney pipe. Your plans don't include it. Is this an oversight or did you determine it was unneeded?"
A: The original model does not have a chimney pipe. The chimney/riser in the Missoula1 model is the space inside the back wall. My video "Solar Dehydrator - Air Flow" has back wall illustrated simply.
Q: "Did you build and test your design?"
A: No, I modeled Mark Vander Meer's solar dehydrator and gave my documentation the name Missoula1.
I have EDITS/highlights for a successful dehydrator build.
Please take note because these EDITS have yet to be added to the plans!!!
1). On the western side of the dehydration cabinet, 2x4s create a shelf for snow at the bottom. I recommend bringing you dehydrator in during the winter, but some extra material can be used to close up that wall, or fur out that area with water resistant materials to help prevent moisture problems.
2). The solar collector's floor and wall should be painted, as well as the remaining opaque surfaces inside the solar collector.
3). Mesh material can be fortified by sandwiching it between layers. Strips of wood can be added to help resist critter attack.
4). Air flow is most important. Weather strip between the top surface and the wall tops.
5). Air flow is most important. Felt strip between surfaces that are adjacent to air flow.
6). Deny fruit flies by using a smaller mesh, in addition to the mesh called-out on the forums (and plans).
7). It's worth noting the originator of this concept/design uses plastic mesh for food trays and fly protection.
8). The tray size could be increased. Do not increase tray size in the North direction.
9). The solar collector and the dehydration cabinet could be built as separate pieces and joined together with screws.
10). The Missoula1 model could be placed on caster wheels.