💾 MEP Software Downloads

Free engineering software for HVAC, electrical, plumbing and fire design — with version info, system requirements and step-by-step installation guides.

🖥
HVAC
AutoCAD (Student Version)
AutoCAD Download free for 1 year through Autodesk's official student & education plan — eligibility, requirements and install steps.
v2026 31.5 MB Free for Students
⬇ Download & Guide
🖥
HVAC
McQuay Pipe Sizer
Free Windows tool for sizing hydronic pipes (chilled/hot & condenser water) by velocity or friction method — from McQuay/Daikin.
v3.0 342.8 KB Freeware
⬇ Download & Guide
🖥
HVAC
McQuay Duct Sizer
Free Windows HVAC duct-sizing tool (equal-friction & velocity method) — the digital ductulator from McQuay/Daikin.
v6.6 348.3 KB Freeware
⬇ Download & Guide