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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?

  • Complete Manual J Load Calculation Report (Heating & Cooling Loads)

  • Manual S Equipment Sizing & Selection Report

  • Manual D Duct Sizing & Layout Plans

  • Mechanical Plans for City Submittal (PDF & CAD available)

Load Calculation ManualJ.jpg

Manual J

Tonnage Calculation Only

ManualD Duct Design

Manual JSD

Manual JS with Duct Design

Manual JS Sizing Equipment for Tonnage Calcs

Manual JS

Includes Equipment Sizing

Mechanical Plan

Mechanical Plan

HVAC Plan for City Permit

COMPLETE THE FORM AND CHECKOUT

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Conditioned Square Foot

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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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