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Bring pipe losses, fittings, equipment resistance and pump duty into one editable Excel workflow. Explore Nexora’s Pump Head Calculator Design Suite.

Explore a practical 25-chapter PDF handbook covering airflow, duct sizing, pressure loss, fan ESP and worked office, villa and large-AHU designs.

New to HVAC? Follow a clear roadmap from heat transfer and psychrometrics to cooling loads, equipment, ductwork, controls and commissioning.

Learn the professional cooling-load workflow—from heat gains and psychrometrics to airflow, coil duty and equipment selection—with a practical 157-page HVAC guide.

Heat pumps are highly efficient, but cheap gas can still produce a lower heating bill. Use this worked comparison to find the break-even point for your home.

Jet fan systems can reduce distributed ductwork and protect basement headroom—but only when extract, makeup air, controls and CFD verification are designed as one coordinated system.

Existing R-410A systems can still be serviced. Learn how R-454B and R-32 affect new HVAC purchases, A2L safety, repairs, costs and contractor questions.

A cold coil does not guarantee a comfortable room. Learn how to distinguish AC equipment faults from duct-distribution problems—and how properly designed smart HVAC systems control airflow, capacity and comfort beyond a single thermostat.

Smart dampers and AI controls direct air where it is needed, reduce fan pressure and can substantially reduce HVAC energy use when correctly designed.

Compare steel and fabric HVAC ducts, including airflow, installation, condensation, applications, design checks and where textile ducting makes engineering sense.

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.

Correct package-unit sizing is not simply a conversion from floor area to tons. Follow this practical procedure to check cooling load, airflow, humidity, fan pressure and corrected equipment performance.