ASHRAE HVAC Duct Sizer

Calculator app for sizing HVAC duct runs using the constant friction method.

iOSGoogle Play (US)500+ downloadsone_time

ASHRAE HVAC Duct Sizer lets HVAC professionals quickly size a single duct run or a range of duct sizes using the constant friction method, a digital version of the classic ASHRAE duct slide rule.

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