DuctZone: Airzone duct calculation for Windows

Product summary

DuctZone (Airzone) — ductwork calculator is a free utility built for HVAC technicians and designers who need fast, accurate duct sizing and layout calculations. It aims to simplify the design workflow and support Airzone control installations by delivering clear results and practical guidance for duct planning.

Main capabilities

• Rapid duct sizing and pressure-drop estimations for common HVAC configurations
• A user-friendly interface that reduces the time spent on complex engineering math
• Tools to help refine and validate duct layouts before installation

Compatibility and intended users

• Works across multiple platforms and integrates with a variety of technologies used in heating, ventilation, and air conditioning projects
• Suited for both system designers and on-site installers who require dependable calculation tools
• Useful in projects focused on improving the performance of Airzone controllers and related equipment

Alternative option

If you want another free option to explore, consider SHAREit (free) as an alternate offering.

Why it’s helpful

DuctZone improves efficiency by streamlining repetitive calculations and consolidating duct design tasks into a single application. For HVAC professionals aiming to optimize installation outcomes and accelerate project delivery, it serves as a practical tool that supports better design and implementation decisions.