Users praise the ability to pull out a phone or Mac to verify duct sizes on-site, often catching design errors during installation.

Some users have noted minor (approx. 10%) discrepancies when compared against manual hand-calculations for flow area and fluid velocity.

| Feature Category | Specific Capabilities | |---|---| | | Round and Rectangular ducts | | Calculation Methods | Equal Friction Method (maintains constant friction loss per unit length) and Equal Velocity Method (keeps air velocity constant) | | Unit Systems | Metric and Imperial units | | Key Outputs | For rectangular ducts: Width and Height; for round ducts: Diameter; Friction loss; Air velocity | | Data Export | Can export results to Excel for further analysis | | Portability | Works without installation (portable software) |

Use a graphical wrapper like Wineskin Winery or CrossOver (a polished, paid version of Wine). Download the McQuay/Daikin DuctSizer .exe file, create a "wrapper" or "bottle," and run the setup file directly. 💻 Use Virtualization (Parallels Desktop or UTM)

It calculates pressure drop per unit length, keeping resistance consistent across the system.

Using the McQuay Duct Sizer is a straightforward three-step process:

Download the free trial or purchase a license from the CodeWeavers website.

If you depend on this tool daily: