Editors' Note: The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
The HVAC Duct Sizer app is the #1 selling duct sizing application for the Apple iPhone and iPod touch. Thousands of happy users have downloaded this useful application for performing quick and simple duct sizing analysis. Just a couple of comments from our users: "I'll be presenting your iPhone program to my HVAC class as an easy compact tool to have in hand when making sales and service calls." - R. Black "I like this app and use it daily" - V. Joe The Duct Sizer application allows you to quickly size one HVAC duct run or a range of duct sizes using the constant friction method. Think of this application as a digital version of the classic Trane Ductulator. In the "Size by Airflow" mode, you can specify the total airflow in CFM (or L/s), the aspect ratio and one of either the velocity of air or the friction loss per 100 feet (30 meters). The results include both the exact and rounded height and width (or diameter) dimensions and the calculated velocity and friction loss. In the "Size by Dimensions" mode, you can analyze an existing duct system. There are options to input the existing duct dimensions and one of either the airflow or velocity values to derive the calculated duct friction loss. In the "Range of Duct Sizes" mode, you can specify minimum and maximum friction loss and airflow values to display a range of duct sizes that fall in between the friction loss bounds. You can specify additional parameters such as the duct shape (rectangular, round, or oval), the air temperature and the air pressure. You can also choose to display values in either English (IP) or Metric (SI) units. This application uses slider controls that allow you to quickly increment or decrement the input values and immediately observe the calculated results. Finally, you can email all of the inputs and results from all 3 input modes to perform further analysis using your desktop computer. The email includes HTML text and a .CSV attachment that can be imported into any popular spreadsheet. The "HVAC Duct Sizer" application was designed by Carmel Software Corporation, a leader in HVAC design software since 1995. In fact, Autodesk (the makers of AutoCAD) acquired our load calculation software and incorporated it into their leading 3D modeling software called Revit. In addition, we developed the ASHRAE 62.1 ventilation app that is currently sold by ASHRAE, Inc.. We also offer the following additional apps for the iPhone/iPod touch: 1. HVAC Quick Load Plus 2. HVAC Quick Load 3. HVAC Toolkit 4. HVAC Pipe Sizer Gas Low Pressure 5. HVAC Pipe Sizer - Gas High Pressure 6. HVAC Pipe Sizer Liquid 7. HVAC Pipe Sizer Steam 8. Steam Tables 9. Psychrometric Plus 10. Psychrometric LT 11. HVAC Pipe Sizer Plus 12. HVAC Pipe Sizer Gas Plus
What's new in this version:
1. In addition to performing simple duct sizing, you can now display a range of duct sizes by specifying minimum and maximum friction loss and airflow values. 2. Includes the ability to specify a maximum aspect ratio for this range of duct sizes 3. You can now email the inputs and results from all 3 duct sizing modes. The email includes html text and also a spreadsheet attachment (.CSV file). 4. Includes a convenient button to easily rate the app in the Appstore 5. It has been confirmed to work ... See all new features »