The ASHRAE Duct Fitting Database is an indispensable tool for HVAC engineers seeking accurate, efficient duct pressure loss calculations. While there is no single "Excel link" providing the entire database as a spreadsheet, robust export functionality and third-party Excel-based calculators offer effective integration pathways. Whether accessed through the official cloud subscription, the free mobile Lite app, or older standalone versions, the DFDB empowers engineers to design better, more efficient air distribution systems.
Several HVAC tools provide Excel add-ins already linked to ASHRAE DFDB: ashrae duct fitting database excel link
Manual transcription from PDF tables or standalone software into calculation sheets introduces human error. An Excel link automates this transmission. The ASHRAE Duct Fitting Database is an indispensable
using VBA/Python link.
It contains loss coefficients ((C_o)) for thousands of fittings, including: the free mobile Lite app