That was what my solar kiln plans called for back in the day so that’s what I built, it was a fine kiln for a hobbyist to dry a little lumber or store it. I was drying 4000 bdft several times a year when I still had the sawmill so it wasn’t really practical for me in short order. I still have my dehumidification kiln but I’m lucky to dry 4000bdft every couple years now but I try and keep 6,000bdf to 10,000bdft of hardwood lumber on hand even now. Some I sell but mostly I just like to have it around if I decide to build something.