Manual J and Manual S load calculation service for residential HVAC projects
Upload your plans and project details, and get a permit-ready ACCA Manual J and Manual S residential HVAC load calculation report—room-by-room heat loss and heat gain, sensible and latent loads, and system totals—without touching the software yourself.
Ideal for HVAC contractors, design-build firms, energy auditors, and homeowners who need a one-off residential Manual J load calculation or a regular partner for permit-ready HVAC design.
When a done-for-you Manual J and Manual S is faster than DIY
Many HVAC companies know they should run Manual J and Manual S load calculations for every home, but the reality is that software, training, and time are all bottlenecks. Our white-glove Manual J service handles the entire residential HVAC load calculation and Manual S equipment verification for you, using the same calculation engine that powers the Load Calc Guru app, all for $250.
Free up your calendar
Reduce sizing risk
Projects that fit our Manual J service
Single-family homes, additions, gut remodels, and light multi-family projects that need permit-ready Manual J and Manual S load calculations.
Heat pump conversions (gas furnace to heat pump or dual fuel) where correct heating load and balance point are critical.
High-performance and energy-efficient homes where code officials, energy raters, and programs require documented Manual J HVAC load calculation and Manual S equipment verification reports.
Busy HVAC contractors who want consistent load calculations and equipment verification without buying and learning another software package.
How the white-glove service works
We use the Load Calc Guru calculation engine to produce a detailed residential HVAC load calculation report based on your drawings and project notes. You get a permit-ready PDF plus optional exports you can use for Manual S equipment selection and Manual D duct design.
Share project info and drawings
Send floor plans, elevations, window schedule, and any available specs: insulation levels, construction type, orientation, and blower door results if you have them.
Tell us whether it's a heat pump, furnace, or dual-fuel HVAC system design, and any zoning or ductless head preferences.
We run the load calculation
We model the building in Load Calc Guru, applying ACCA Manual J and Manual S methodology to calculate heating and cooling BTU/hr by room and by system, including sensible and latent loads.
We use appropriate design temperatures for your climate zone and document assumptions so the HVAC load calculation is transparent for reviewers.
Receive your permit-ready report
You get a clean PDF report with room-by-room and whole-house load summaries, plus system totals for heating and cooling.
Use the report for permit submittals, equipment selection, and homeowner proposals.
What's included in every white-glove service project
Each residential HVAC load calculation includes the data most building departments, energy programs, and savvy homeowners expect to see in an ACCA-style Manual J and Manual S report.
Detailed load reports
Room-by-room heat loss and heat gain in BTU/hr.
Sensible and latent cooling loads with totals by system.
Indoor and outdoor design conditions clearly documented.
Inputs and assumptions
Envelope R-values, window performance, and shading assumptions.
Infiltration rates, including blower door ACH50 if available.
Occupancy and internal gains assumptions suitable for Manual J.
Ready for Manual D
Room loads and airflow targets that support Manual D duct design, zoning decisions, and ductless head sizing.
Who benefits most from white-glove service?
HVAC contractors & designers
Busy teams that need permit-ready Manual J reports fast.
Companies without in-house design staff or software.
Contractors who want consistent residential HVAC load calculations across every job.
Builders, energy pros, homeowners
Custom home builders and architects who want documented HVAC design loads.
Energy auditors and raters needing consistent Manual J data for programs and incentives.
Homeowners who want a one-time, independent Manual J to sanity check proposed HVAC equipment sizing.
Ready to request a white-glove load calculation?
Pricing is $250 for most residential projects, if floor plan is included. Turnaround is typically less than a week, depending on how much information was included in the first request.
Every job includes a full Manual J and Manual S load calculation report generated with the Load Calc Guru engine.
Share your plans, timeline, and any program requirements, and we'll confirm scope, price, and an estimated delivery date before you ever pay a cent.
FAQ
Common questions about the Load Calc Guru white-glove load calculation service for residential HVAC projects.
Tell us about your project
Fill out this form and we'll follow up about pricing, scope, and turnaround for your residential Manual J and Manual S load calculation. Your message is sent directly to our white-glove team.