Almost a year after buying the DH-4000 from Wood-Mizer, I finally got it up and going.
The kiln chamber is made from an old truck body I bought at an auction. It came mounted on a trailer frame, which I left on it. I did remove the tires and put it up on blocks.
Because it was not insulated I had a lot of work to do to get it ready. The interior walls were plywood over a 1 inch air gap. I painted them with silver roof paint to waterproof them. Then I had to build a raised floor so that I could get it insulated. and clear the wheel wells. This took about 9 inches off of the height. I covered the inside walls, floor and ceiling with 2" foam panels covered in poly film.
The hardest part was replacing the roll-up rear door. The roll-up just wouldn't work with the air baffles.
This is the outside view of the box. The side walk-in door was already installed when I bought it. The small panel is where the controller is mounted. I didn't want it hanging on the outside of the box.
This is the DH-4000 control box and fan power switches. It's insulated and waterproofed from both the inside and outside elements. This is also a shot of my pathetic rear doors. I may replace them with some tongue-and-groove made doors later.
This is outside looking in. The lower 4 foot half of the walls is covered with aluminum I salvaged from our old swimming pool. It protects the foam panels from being bashed by boards. The raised floor is made from treated tongue-and-groove 2x6's.
This is the air baffles and kiln unit. Air baffles are plywood and 2x4s holding the fans, with industrial tarps rolled up on 2 inch pvc pipe. I use pullys and rope to raise and lower them. In the right photo you can see the insulated box that houses the controller unit.
This is a close-up of the kiln unit and the controller box and a view from the inside looking out.
This is a view behind the air baffles and looking out from inside with the side door open.
