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HVAC Beginner’s Guide: From First Principles to Real-World Design
New to HVAC? Follow a clear roadmap from heat transfer and psychrometrics to cooling loads, equipment, ductwork, controls and commissioning.
Sep 176 min read


HVAC Duct Design: How to Calculate Friction Loss, Equivalent Length, and Total Static Pressure
Learn the complete duct-pressure workflow: size each section, calculate straight and fitting losses, identify the critical path, determine AHU external static pressure, and select the fan duty.
Sep 312 min read
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