Order Certified HVAC Heat Load Calculations
— Manual J, S, D & Mechanical Plans
Get fully compliant HVAC load calculations for residential, commercial, and industrial projects. Our experts provide Manual J (Load Calculations), Manual S (Equipment Sizing), and Manual D (Duct Design) reports that meet city permit and code compliance requirements. Fast, accurate, and permit-ready.
What’s Included In Your HVAC Design Package?
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Complete Manual J Load Calculation Report (Heating & Cooling Loads)
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Manual S Equipment Sizing & Selection Report
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Manual D Duct Sizing & Layout Plans
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Mechanical Plans for City Submittal (PDF & CAD available)

Manual J
Tonnage Calculation Only

Manual JSD
Manual JS with Duct Design

Manual JS
Includes Equipment Sizing

Mechanical Plan
HVAC Plan for City Permit
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Select Service:
Manual JSD - Load Calculation, Equipment Sizing, Duct Design
Manual JS - Load Calculation, Equipment Sizing
Manual J - Load Calculation
Add On:
We provide Non-Stamped Mechanical Plan for City Permit
Calculated Price
Minimum Price:
Manual J: $150 | Manual JS: $175 | Manual JSD: $250
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