The phrase references the process of determining the heating and cooling load requirements of a building, specifically when seeking professionals offering these services locally. This calculation, adhering to the Air Conditioning Contractors of America (ACCA) Manual J standard, ensures that heating, ventilation, and air conditioning (HVAC) systems are appropriately sized for a given structure. An example would be a homeowner searching for a certified technician in their vicinity to perform a load calculation before installing a new air conditioning unit.
Accurate load calculations are critical for efficient energy consumption, occupant comfort, and the longevity of HVAC equipment. Oversized systems lead to energy waste and poor dehumidification, while undersized systems struggle to maintain desired temperatures. Historically, inaccurate sizing practices were common, resulting in significant inefficiencies. The development and adoption of standardized methods like Manual J aim to address these issues by providing a scientific approach to HVAC system design. Obtaining such a calculation from a local provider offers the advantage of localized expertise regarding climate conditions and building codes.
