Looking for some feedback other's experience with vacuum kilns? I've been researching and it looks like the only domestic manufacturer is I-Dry out of Vermont. Anybody using their kiln(s)? If so is it worth the $50K + price tag? If not I-Dry what other models are out there? Also can someone explain to a simpleton like myself what the differences are in various models ie. radio frequency vs. microwaves?

David M.
Milwaukie Hardwoods, LLC