01 / LOAD
Manual J
Room-by-room heating and cooling load calculations sized to the actual home.
- Heating & cooling loads
- Room-by-room breakdown
- Design condition summary
Contractor-ready HVAC design
Accurate load calculations.
Better installs.
Manual J, S, and D design built for contractors who need dependable answers, responsive support, and reports ready for the field.
✓ Field-informed design✓ Clear, professional reports
LP
PROJECT SUMMARYResidential Load Analysis
COMPLETEHEATING LOAD48,620BTU/h
COOLING LOAD31,840BTU/h
Room-by-room analysisDesign conditions verified
✓
DESIGN CHECKReady for equipment selection
01Fast turnaroundKeep projects moving with a clear, reliable workflow.
02Real-world insightDesigned with installation and airflow in mind.
03Contractor supportAnswers and revisions when the job changes.
04Professional reportsClean documentation for permits and clients.
Design services
Systems sized right
Choose the calculation package that fits the project. Every design starts with careful inputs and ends with a practical, contractor-ready deliverable.
MOST POPULAR
02 / SELECT
Manual J + S
Accurate loads paired with equipment selection based on real performance data.
- Complete Manual J
- Equipment selection
- Sensible & latent match
03 / SIZE
Complete Sizing Package
Loads, equipment selection, and duct sizing based on a contractor-supplied measured sketch.
- Manual J and S
- Room airflow requirements
- Duct sizing only
Signs homeowners notice
Your home may be telling you the system does not fit.
Comfort problems are not always caused by broken equipment. They may point to incorrect system sizing, equipment selection, or airflow design. A Manual J, S, and D review helps determine whether the HVAC design matches the actual home.
Some spaces never feel like the thermostat setting.
The system starts, stops, and starts again after short run times.
The temperature drops, but the home still feels humid or sticky.
Registers barely move air, or ducts whistle and rush when the blower runs.
The system struggles during the hottest or coldest weather.
Excessive cycling and poor airflow can waste energy and increase equipment stress.
What does the home need?
Calculates room-by-room heating and cooling requirements using the home’s construction, windows, orientation, air leakage, and local climate.
Which system actually fits?
Matches the calculated load to real manufacturer performance so the selected equipment can handle temperature and humidity at local design conditions.
Can the air reach every room?
Sizes the supply and return ducts around required airflow, duct lengths, fittings, materials, and available static pressure.
These symptoms can have several causes and do not prove a design problem by themselves. The guidance above is supported by ACCA and ENERGY STAR.
Check my home → A simpler workflow
Measurements in. Answers out.
A straightforward process designed around residential contractors. Blueprints are welcome, but they are not expected.
Send the project
Enter room measurements in the guided intake or provide a simple measured sketch.
We design
We review, calculate, and flag anything that needs clarification.
You install
Receive clear reports and move forward with confidence.
Straightforward pricing
Choose your deliverable.
Transparent starting prices for residential projects. Complex homes and rush service may require a custom quote.
MANUAL J
$250
per project- Room-by-room calculation
- Heating and cooling loads
- Professional PDF report
- Standard turnaround
BEST VALUE
MANUAL J + S
$350
per project- Everything in Manual J
- Matched equipment selection
- Sensible and latent review
- Priority turnaround
J + S + D
$475
starting at- Complete J and S package
- Room-by-room airflow
- Duct sizing from supplied route
- Design support
Start your next project
Ready for a better design workflow?
Tell us what you’re working on. We’ll confirm the scope, required information, price, and turnaround.
✉ info@loadprohvac.com⌁ No blueprints required — guided measurements accepted