Modern alternatives like the HVAC Duct Sizer by Carmel Software Corporation are available on the Mac App Store. These apps are specifically designed to run on macOS (version 12.5 or later) and are optimized for Apple M1/M2/M3 chips .
For years, the industry had been dominated by clunky Excel spreadsheets or Windows-only executables that looked like they were coded in 1998. Elias tried to open his usual Windows emulator to run the legacy software, but the spinning beach ball of death mocked him. The emulator crashed. The clock ticked past 8:00 PM. The client presentation was at 8:00 AM.
While there is no official "McQuay Duct Sizer for Mac" application released by (now Daikin Applied ), macOS users can run this classic HVAC tool by using the HVAC Duct Sizer app from Carmel Software Corporation available on the Mac App Store. Running McQuay-Style Sizing on a Mac mcquay duct sizer for mac
Here are the three best ways to run a Windows .exe program like McQuay Duct Sizer on a Mac:
Carmel Software Corporation (widely considered the mobile industry standard for HVAC tools). Modern alternatives like the HVAC Duct Sizer by
The most direct way to use the original McQuay Duct Sizer on a Mac is to create a Windows environment. This requires:
Install (optimized for Apple Silicon M1/M2/M3 chips). Elias tried to open his usual Windows emulator
Many modern HVAC calculator apps are designed for iPad and iPhone but run natively on Apple Silicon Macs. If you purchase an app like or the McQuay/Daikin Mobile Apps on your iPhone, you can often download and launch the iPad version directly onto your M-series Mac desktop via the Mac App Store. The Modern Solution: Web-Based Cloud Calculators
Tools like , Duct Calculator , and ASHRAE HVAC Duct Sizer offer powerful, native duct sizing capabilities that integrate perfectly into your macOS workflow. By leveraging these tools and understanding the principles of proper duct sizing, you can ensure your HVAC projects are efficient, code-compliant, and high-performing—all from the comfort of your Mac.