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HVAC

Heating, Ventilation, and Air Conditioning calculators for load calculations, duct sizing, airflow, and refrigerant charge

Calculators & Instant Answers

Interactive tools and pre-calculated results for common scenarios

Calculate heating and cooling loads for residential and light commercial buildings following ACCA Manual J standards

Determine proper duct dimensions for HVAC systems based on airflow requirements and velocity limits

Calculate cubic feet per minute airflow requirements for proper ventilation and HVAC system design

Determine the correct refrigerant charge for air conditioning and refrigeration systems

Select appropriate HVAC equipment capacity based on load calculations and system requirements

Calculate required ventilation rates for residential and commercial spaces per ASHRAE standards