iPhone Screenshots


Have you ever used the original "Trane Ductulator". Well you will know how easy this fantastic design tool is to use. We have used these original cardboard calculators for over 20 years and now we have written an equally easy to use HVAC sheet metal duct sizing program for the iPhone.

Forget all the complicated duct sizing programs available out there. As an experienced HVAC designer you will know that all you want is a quick and simple to use program.

This is what we have created for you.

The designer selects two parameters and the program calculates the remaining parameters. The parameters are Velocity, Pressure drop, Flow rate and Duct size. The ducts can be either round or square in shape.

This program allows for calculations in both metric and imperial units.

What’s New

Version 3.3

Updated for latest ios

Ratings and Reviews

Mossman104 ,


This is NOT the Trane ductulator. It cannot easily convert round to rectangular duct sizes, nor can it easily convert rectangular to rectangular sizes. It only uses the last 2 inputs as a basis for calculation. You cannot fix a certain variable, and then play with alternate sizes. The help file is very limited, and speaks about features that don't exist.

polosandman ,


The details said this app would work with Ipad, however after i paid for it it will not download onto my Ipad from Itunes. Too bad fo rme I guess.

estenoz ,

Great app


Azitech Pty Ltd
1.3 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Azitech Pty Ltd


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