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Boiler Size Calculator
Calculate required heating capacity and boiler size for buildings
Formula: Heating Capacity (BTU/hr) = Heated Area (sq ft) × Climate BTU Factor × Insulation Multiplier
Building & Climate Parameters
Calculation Results
⚠️ Boiler sizing estimations depend heavily on building heat loss, window glazing, and local winter design temperatures. Always consult a certified heating engineer (ASHRAE guidelines) before final equipment selection.