The Modern Residential HVAC Load Calculation & System Sizing Manual: From Calculated Load to Verified Performance: Equipment Selection, Heat Pumps, Airflow, Humidity Control, and Commissioning

You calculated the load. Now make sure the equipment actually performs. A correct load number is only half the job. Oversize the equipment and you get short-cycling, poor humidity control, and a system that never runs long enough to dehumidify. Undersize it and the homeowner is uncomfortable on the first hot or cold day. This manual picks up exactly where a load calculation ends and takes you through selecting, installing, and verifying equipment that actually matches the number you calculated. What you'll master: Convert a calculated load into a real equipment selection — matching nominal and actual capacity, not just tonnage on a spec sheet Select air conditioners, furnaces, boilers, and other heating equipment with confidence in the sizing logic behind the choice Size heat pumps correctly for cold-climate performance, including variable-capacity, ductless, zoned, and specialty systems Work through the airflow and duct-system implications of a given equipment selection, not just the box itself Manage ventilation, filtration, and humidity control as part of the system design, not an afterthought Install, commission, and verify a system so it performs the way it was designed to — with the documentation to prove it Diagnose load and sizing failures in the field, working backward from symptoms to root cause Who this manual is for: HVAC contractors and installers responsible for equipment selection and commissioning Technicians who need to verify a system was installed and performs correctly, not just installed Quality control staff producing professional documentation and reports Anyone troubleshooting a system that's underperforming and needs a structured way to find out why Every chapter pairs the equipment-selection logic with a worked example, common-mistake call-outs, and field-verification notes — so you're not just picking a model number off a chart, you understand why it's the right one for the load, the airflow, and the climate. Inside Volume 2 — From Calculated Load to Verified Performance: 12 chapters across three parts — equipment sizing and selection, airflow/IAQ/performance verification, and case studies and failure analysis — plus appendices covering equipment-selection worksheets, commissioning and QA forms, a code and standards map, and a red-flag audit checklist. Closes with complete worked residential projects and a dedicated chapter on diagnosing load and sizing failures. A companion volume — covering building survey, load calculation, and software auditing — is available separately for readers who also need to calculate or verify the load a system is being sized against. Independent educational work. Not published, endorsed, or affiliated with the Air Conditioning Contractors of America (ACCA). Scroll up and click Buy Now — and size, install, and verify a system that actually performs.