Hi Andy, I have had this set up for about 12 years now. Its actually made by a company called Sauno who are also Swedish. Logosol are just getting it badged for themselves unless they have bought Sauno out..
My original box was made with the insulation panels and lasted a few months. My current one has been on the go for 10 years and started as a big frame of doug fir. I then covered the inside with 6mm plywood, used 50mm thick insulation board in the gaps and then sterling osb on top. All the insides are fibre glassed inc the internal roof. That job took about 2 weeks to do, with the workshop doors open. I can dry planks up to 2.4m long by 1m wide. I think my internal dimension go right up to the recommended capacity for the smaller unit. Last year I drilled a 110mm dia hole in the workshop walls for the vent. That was long overdue as there is obviously a lot of condensation coming out 24/7. The door I built up in a big frame and must be 200 thick. It is more or less jammed in the aperture and I stuff bubble wrap down in the gaps with a flat steel ruler if I see any leaks. It isnt necessarily pretty but it works. I dont have any secure outdoor starage area at the workshop so all timber goes straight into the kiln from the van. Fot timbers such as oak I cut off the sapwood as thats where most of the tannin is. I have only changed the fan system once, last year, so it takes a little time to rot it out. I have just remembered that the insulation was from a company down in England somewhere who sell second hand, over runs etc insulation. Its far cheaper buying it this way than brand new. I cant see me using this kiln much beyond the end of this year. All my milling is by alaskan mill and as I get older, it gets a lot harder. My logging buddy isnt available much and I am on my own for lifting and shifting and as I have been milling for 20 years now, I reckon its time to slow down a bit. I have also changed my main product which was laser engraved wooden coasters to laser engraved leather coasters, which are 100 times quicker and easier to make. Andy, I am only in Glenrothes so if you fancy a trip down one day give me a shout.