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Heat Loss Calculator
Calculate thermal heat loss through building walls and envelopes
Thermal Formula: $Q = \frac{A \times \Delta T}{R}$, where $Q$ is heat loss (BTU/hr), $A$ is area (sq ft), $\Delta T$ is temperature difference (°F), and $R$ is thermal resistance ($R$-value).
Surface & Thermal Parameters
Calculation Results
⚠️ Heat loss calculations account for conductive transfer through specific surfaces. Windows, doors, air infiltration, and thermal bridges require separate detailed envelope analysis.