The middle double door used to be the PO's dyno (VMP Performance). He took the dyno but left the exhaust system. 2 frequency controlled blower systems with commercial filters. A couple of heat lamps, and I'll have a paint booth. The single door is my 900+ sq ft wood shop, with several 230 volt outlets for my sawdust makers. The entire building has 2 heat pumps. I can heat/cool any or all of the rooms via electric dampers. The house is 3,000 sq ft with a screened pool and spa. It sits on 2.61 acres, all high and dry. I know, we've been truly blessed, but my wife and I saved our entire lives, and invested well.