These handy devices/programs allow you to calculate Areas, Velocities, Flowrates, Pressure Losses and a load more design criteria either using a simple hand held circular slide rule type device …. or more recently apps for your Android or Apple device.
The simplest and quickest ductulator app there is! Now avaliable in SI and Imperial units! Ever wished you had your classic slide ductulator with you on-site, in a meeting or at your desk? The ASHRAE HVAC 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 (.
I have not personally tested the latter and would welcome feedback on anyone who has. Some of the web feedbacks on these are not good – but the ones selected below appear to have reasonable feedback.
Android Apps (2021 prices)
- Duct Calc Elite £5.99 Duct Calc Elite
- HVAC Duct Sizer £4.49 HVAC Duct Sizer
How To Use A Trane Ductulator
Apple App
Trane Ductulator App
- Ductulator – Duct Sizer £4.99 Ductulator – Duct Sizer
For the manually operated (well known) circular Trane Ductulator – you will need to search eBay. It will probably be eBay USA (where I bought mine) but even with shipping the total cost was around £16.
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