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Boiler Sizing Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.

Formel

Boiler BTU = Heat Loss (BTU/hr) × Safety Factor (1.25)

Trinn-for-trinn guide

  1. 1Calculate building heat loss through walls, windows, roof
  2. 2Apply the formula using your project measurements
  3. 3Add required safety factors or waste allowances per code

Løste eksempler

Inndata
80,000 BTU/hr heat loss
Resultat
Boiler = 80,000 × 1.25 = 100,000 BTU input

Vanlige feil å unngå

  • Not applying code-required safety factors or derating
  • Forgetting to account for waste and cut losses in material estimates

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