Vacuum Lumber drying kilns. (2) Vacuum Kiln chambers, similar to Vacutherm.com, 34 foot has hot water jacket, 24 foot needs jacket, Double end hydraulic doors, Stainless steel lined, (2) three-phase vacuum pumps. Chambers can be ganged to dry up to 50 foot timbers. These are piped for a hot air source as they were also used for pallet heat treating. $18,000 for both.