• Enhanced HVAC Calculator accuracy and flow for better BTU load calculations • Improvements to mobile phone workflow • Updated AC sizing and furnace sizing calculations • Improved HVAC load calculation performance • Optimized Manual J style load calculator logic • Stability improvements for reliable HVAC sizing results HVAC Load Pro continues to deliver fast, accurate HVAC load calculations, BTU sizing, AC sizing, furnace sizing, and Manual J style calculations for HVAC professionals.