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HVAC Tools Hub Verified
Practical HVAC calculators, guides, and reference tools
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About this tool
HVAC Tools Hub provides free browser-based calculators and reference resources for airflow, duct sizing, heating and cooling loads, refrigeration, psychrometrics, and HVAC unit conversions.
The site includes clear formulas, units, assumptions, limitations, guides, comparison pages, and reference tables for technicians, engineers, students, contractors, and HVAC professionals. No account is required.
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