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Air conditioning & HVAC

Verified tools for HVAC, IT, maintenance and engineering.

Technical results state their method, assumptions and limits. They do not replace regulatory or professional validation.

Air conditioning & HVAC

BTU/h ↔ kW conversion

Convert thermal power between international BTU per hour, watts and kilowatts.

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Airflow and ACH

Calculate airflow or air changes per hour from room volume.

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Duct air velocity and diameter

Relate airflow, mean velocity and internal diameter for a circular duct.

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