VC's HVAC Tools 2.0 for R14 -
consists of a set of nine AutoCAD programs for automating 2-D double line duct drawings. All nine programs are dialog box based, written completely in AutoLISP and compiled into ARX with AutoDesk's VisualLISP. All nine programs have been thouroughly tested under Release 14 of AutoCAD. Layers,
Linetypes, and Text styles are all customizable via simple configuration files.