A further reference for evaluating ductwork requirements is Manual D. The calculations create an in depth, room-by-area Evaluation of cooling requires. Request a printout of all calculations and assumptions, together with ductwork style and design. Be cautious of the contractor who bases estimates just on dwelling sizing or imprecise rules. https://messiahue0f0.pointblog.net/the-best-side-of-best-air-conditioning-maintenance-companies-in-jeddah-73229705