Ductline: HVAC Duct Calculator

By Suraj Kumar Giri on AppTrack Ninja.

Ductulator that shows its work

Every number in Ductline can show you where it came from: the equation, your own figures substituted into it, and the standard it follows. Tap any result to open the working. That matters, because a duct calculator that disagrees with the one in your other hand is worthless until you can see which of them is wrong. WHAT IT SIZES • Round, rectangular and flat-oval duct • Size by friction rate (the equal-friction method) or by velocity • Solve in any direction: size from airflow, airflow from a size you already have, or the pressure drop of either • Convert between round and rectangular at equa…

Categories: Utilities, Productivity

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