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CalcWolf Home Calculadora de Potência de Fogão a Lenha
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What Size Wood Stove Do You Need?

Calculate wood stove BTU needs by room size, insulation, and climate zone.

📅 Updated April 2026 Formula verified 📖 4 min read 🆓 Free · No sign-up

No Brasil

Fogão a lenha é tradição no interior e no Sul. Para aquecimento: 100 W/m² (casa bem isolada). Para cozinhar: fogão a lenha é preferência cultural em Minas, Goiás e interior de SP. A eficiência varia enormemente: fogão aberto 10-20%, fogão fechado moderno 60-75%.

Lenha

Eucalipto: abundante e barato (R$100-200/m³). Goiabeira: excelente brasa. Madeiras frutíferas: dão sabor à comida. Nunca use madeira tratada ou pintada — libera toxinas.

⚡ CalcWolf Insight

The most important wood stove spec is the EPA emissions rating. Stoves under 2.0 g/hr are cleanest and most efficient, and are eligible for a 26% federal tax credit.

Frequently asked questions
Qual potência?
Para aquecer 80 m²: 8-10 kW. Depende da isolação e clima.
Quanta lenha por inverno?
Sul do Brasil: 3-6 m³ para uso regular de lareira. R$300-1.200 na temporada.
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Kevin Glover
Founder, CalcWolf · GLVTS · Blickr
All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →
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