Hey JAR- you might remember you picked up a sheet of glass for our RFM a couple years back from a colorado show for us, we live up weber canyon from you. Thank you again, by the way. Anyway, we built a 16x24 appx. room tacked on back of our garage. It has cement floor, insulated, heated by 2 electric wall heaters...... There are 16 pins in there. It is not fancy, I'll try to put a picture here......