External load-result checklist
Enter results from the external load-calculation program, document field constraints, and identify when a technical review is needed.
Home assessment
Start by describing the home, choose the main floor, then record supply registers and return grilles in the order you encounter them.
Perform load calculation now, and enter results
Entered from an external load-calculation program. GreyModule does not calculate or modify these results.
Existing equipment and site information
Record the existing fuel and equipment path, electrical information, zoning, and venting conditions.
Duct analysis
This category contains the plenum, filter, return-air path, and trunk measurements used for approximate capacity guidance.
Guide reference: 80 sq. in./ton hard ducting; 113 sq. in./ton flex ducting; 144 sq. in./ton return grilles.
Let’s assess the supply ducting
Let’s assess the return ducting
Project readiness checklist
Confirm the supporting information is available before relying on the finished report.
Download the report first if you need to attach it to an email. The email button prepares a message with the report summary in the body.
Boundary
This tool narrows capacity guidance and flags constraints. It does not select equipment.
Continue the equipment search separately. Verify final sizing, code requirements, installation feasibility, and unusual conditions with a qualified technical reviewer.
Admin editor
Edit the checklist and decision rules without changing application code. Edits save in this browser. Download a configured copy to transfer your settings.