Description:
HVAC Residential Load Calcs HD is a professional HVAC load calculation tool for contractors, technicians, and energy auditors. It helps you size residential heating and cooling systems quickly and confidently on site using proven industry practices.
Core features:
- Room-by-room and whole-house load calculations with clear BTU and tonnage results
- Flexible building inputs including orientation, insulation levels, windows and shading, infiltration, and ventilation
- Instant summaries and shareable reports to support proposals, permitting, and client communication
Why it stands out:
- Field-ready workflow that speeds up estimating and eliminates spreadsheet errors
- Clear, visual breakdowns that make it easy to validate assumptions and right-size equipment
- Built for productivity and business use with consistent, repeatable results and time savings
Great for: HVAC contractors, design-build teams, energy auditors, and anyone who needs fast, accurate residential HVAC sizing. Keywords: HVAC load calculator, residential sizing, BTU calculator, Manual J style, jobsite estimating, productivity