Manual J, Block Load Calculation Service

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.

• 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.

• Optional Add-on Manual S Report

Manual J, Room x Room Load Calculation Service

A room-by-room calc is a method for determining the heating and cooling needs of each room in a home. This calculation is more accurate than a block load calculation, which determines the heating and cooling needs for the entire home.

• 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.

• Optional Add-on Manual S Report
• Only option to include Manual D Report

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

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

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!