HVAC Buddy Duct Calc

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$4.99

This tool runs through iterations to generate a list of duct sizes meeting a given friction loss, velocity, and material. Calculations are based on friction loss equations recommended in the ASHRAE Handbook of Fundamentals 2009 to come up with each list of acceptable ducts.

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July 2016

This Month in Professional Builder

Features

Two of the largest, most significant buyer groups are in different stages of life, yet are often drawn to similar features in a home. Here’s a look at those intersecting tastes—and how to maximize them.

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