Our reports are ACCA Manual J 8th Edition Certified, using Wrightsoft

A block load is a calculation that determines the heating and cooling loads for an entire conditioned space as if it were a single room.

At minimum, we will need the below information emailed to: [email protected]

  • Floor Plan/Sketch for each floor (including basement if any portion is finished)
  • Address of property
  • Known insulation R-value of walls
  • Known insulation R-value of Ceilings/Floors
  • Characteristics of Windows
  • Location of equipment and ductwork - Basement, Conditioned space, Attic Garage, etc.

We provide Manual J calculation services nationwide. Our pricing includes one revision, and our turnaround is typically less than 5 working days.

Please see the confirmation email with a Site Survey Form and additional information.

HVAC Pro Blog LLC serves Residential contractors, builders, architects, and engineers only. Sorry, we do not offer Commercial Load calculations, and we prefer not to work with homeowners directly - instead, support your design professionals!