Correctly Sizing an HVAC Unit Determines Whether Replacement Becomes Inevitable
https://precisionhvacrepaircorner.huicopper.com/service-call-costs-rise-sharply-once-equipment-surpasses-12-year-reliability-threshold
For a 2000 square foot house, you typically need a system between 3.5 and 5 tons of cooling capacity, depending on insulation, ductwork, and local climate