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AC Load calculation

HVAC Load Calculation for
Custom Homes - from $99

Accurate HVAC sizing for Florida homes. No guesswork.
No oversized systems.

Get a professional HVAC load calculation based on your plans - and start your project with the right foundation.

What Is an HVAC Load Calculation?

An HVAC load calculation (Manual J) determines how much heating and cooling your home actually needs.
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It takes into account:

  • square footage and layout

  • ceiling heights

  • windows and orientation

  • insulation levels

  • climate conditions in Florida

  • internal heat loads

 
This is the most important step before selecting HVAC equipment.

Rule-of-Thumb Sizing

  • Oversized AC systems

  • Poor humidity control

  • Uneven room temperatures

  • Short cycling

  • Higher energy bills

  • Reduced equipment lifespan

Load Calculation-Based Design

  • Properly sized equipment

  • Better humidity control

  • More balanced comfort

  • Higher energy efficiency

  • Quieter system operation

  • Improved long-term performance

Manual J Load Calculation

HVAC Load Calculation - Special Offer from $99

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We offer an entry-level HVAC load calculation starting at $99 for standard residential plans.

What’s included:

  • accurate heating & cooling load calculation

  • room-by-room load breakdown

  • system sizing recommendation

  • basic engineering review of your plans

 

Turnaround time: typically 1–3 business days

House Floor Plan

What You Can Do Next

Your load calculation is the first step. From there, we can help you with:

  • Ductwork design (Manual D)

  • Equipment selection (Manual S)

  • Multi-zone / VRV system planning

  • Humidity control strategy for Florida homes

  • Full HVAC design for custom homes

  • Installation & project coordination

Download a real project report prepared by Armada Air

Get a real example of a professional Manual J calculation

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