InstantManualJ

Your Manual J report in one hour, not two weeks.

Upload a floor plan or answer twelve questions. Get a permit-ready, room-by-room ACCA Manual J load calculation — while the job is still yours.

Launching soon. $49 per report — founding list gets the first one free.

“Permit rejected — submit a Manual J load calculation.”

Every HVAC contractor knows the drill: the customer's system is dead, the replacement is on the truck, and the permit office wants a load calc before work starts. Today's options: buy and learn $500-a-year software, or email a service that charges $79–$300 and takes days to send back a PDF — while the customer starts calling your competitors.

How it works

Send the house

Upload a floor plan, sketch, or listing — or answer twelve questions: square footage, windows, insulation, orientation, ductwork.

We run the numbers

A full ACCA Manual J (8th edition) calculation using your county's outdoor design temperatures — room-by-room heating and cooling loads, not a rule-of-thumb guess.

Permit-ready PDF

A clean report formatted the way plan reviewers expect: load summary, room-by-room table, design conditions. Ready for Manual S equipment selection.

Founding contractor list

$49 per report at launch — one-hour turnaround, free revisions if the plan reviewer pushes back. Join the founding list and your first report is free.

Built for HVAC contractors, energy auditors, and homeowners pulling their own permits. Residential Manual J today; Manual S & Manual D on the roadmap.