Skip to main content

learn.howToCalculate

learn.whatIsHeading

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

Formula

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

Guida passo passo

  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

Esempi risolti

Ingresso
80,000 BTU/hr heat loss
Risultato
Boiler = 80,000 × 1.25 = 100,000 BTU input

Errori comuni da evitare

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

Pronto per calcolare? Prova la calcolatrice gratuita di Boiler Sizing

Provalo tu stesso →

Impostazioni

PrivacyTerminiInfo© 2026 PrimeCalcPro