It is a user-friendly program that incorporates a library of duct materials, fitting types, and equipment selection options, making it a comprehensive tool for HVAC system design. The software generates a detailed duct layout, including sizing, pressure losses, and fan power requirements.
Choose if you use other heavy Windows HVAC software alongside the duct sizer.
For full-scale project design, manually sizing every run in a separate utility is inefficient.
Because it was free, small (under 5 MB), and required no installation (portable .exe), it became an industry standard. Even after Daikin acquired McQuay in 2006, the tool remained available on Daikin Applied’s website for Windows users. mcquay duct sizer for mac
For engineers using modern Apple Silicon (M1/M2/M3/M4) chips, a virtual machine offers the most stable environment.
If you prefer not to tinker with Wine, running a full Windows virtual machine is the bulletproof method.
If you prefer to avoid virtual machines, the Apple ecosystem offers robust, native alternatives built specifically for macOS and iOS architectures. It is a user-friendly program that incorporates a
Wine is a compatibility layer capable of running Windows applications on macOS without needing a full Windows license or operating system installation. Because the McQuay Duct Sizer is a lightweight, 32-bit/64-bit utility with zero complex graphics requirements, it runs perfectly via Wine.
While McQuay Duct Sizer has been a staple in the HVAC industry for years, there's one major catch: it's not native to Mac computers. The program was originally developed for Windows, and while it's been widely used on PCs, Mac users have been left out in the cold. This has led many to search for workarounds or alternative solutions that can run on their Mac devices.
Free, lightweight, and does not require a Windows license. Cons: Can require some manual setup. For full-scale project design, manually sizing every run
Regardless of which platform or alternative you choose, the process for sizing ducts remains very similar. Here is a general guide:
Download the official McQuay Duct Sizer or Pipe Sizer .exe installation file from a verified source or the Daikin Applied legacy tools archive.
Calculates CFM, L/s, friction loss, and velocity. How to Use the Duct Sizer Enter Flow Rate: Input your airflow in CFM or L/s.
Excellent customer support, regular updates for new macOS versions, and no Windows license needed. Cons: Paid software. Step-by-Step Guide: Installing via Wineskin (Free Method)
you are a student, occasional user, or manage a primarily cloud-based workflow. Modern web-based calculators or the built-in tools in Revit for Mac are sufficient.