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Manual J load calculation

The ACCA-standard calculation that sizes heating and cooling equipment to a home's actual heat loss and gain — based on insulation, windows, square footage, and climate. The basis for right-sizing.

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Definition

The ACCA-standard calculation that sizes heating and cooling equipment to a home's actual heat loss and gain — based on insulation, windows, square footage, and climate. The basis for right-sizing.

Why this matters for your home

  • Use this term to ask better questions when you compare estimates.
  • Connect the definition to a real decision in our Learning Center guides.
  • Confirm how it applies to your home's age, equipment, and Utah climate.

Category: Cooling

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