A complete, contractor-ready deliverable
- Whole-building heating and cooling design loads
- Room-by-room load breakdown
- A system-sizing summary based on the submitted construction inputs
- A professional report for contractor review
RESIDENTIAL LOAD CALCULATIONS
Residential Manual J Load Calculation
Receive a room-by-room residential heating and cooling load calculation to support accurate HVAC equipment sizing.
One-business-day delivery One revision included Contractor-approved details
Information needed to begin
- Dimensioned floor plans and job address
- North orientation and ceiling heights
- Insulation R-values and construction assemblies
- Window sizes, U-factor, and SHGC
- Infiltration details and proposed system zoning
WHO IT HELPS
Built for working HVAC contractors
Residential replacement projects, additions, new homes, permit documentation, comfort investigations, and contractors who want load-based equipment sizing.
Manual J uses building characteristics and local design conditions to estimate how much heating and cooling a home requires. Accurate inputs are essential; missing or assumed construction details can change the result.
The report is prepared from the information supplied by the contractor, builder, designer, or owner. The contractor remains responsible for field verification, final equipment selection, local code, and permit approval.
COMMON QUESTIONS
Before you order
When does the one-business-day window begin?
The delivery window begins after all required plans and construction details are complete.
What if the home has more than one system?
The standard package covers one system. Send the plans and zoning information so additional-system pricing can be confirmed.
Ready to get this job off your desk?
Send the complete job information and pay the 50% deposit. We’ll confirm the delivery window after reviewing the files.
Start your order