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How Much Firewood Do You Need?

Built by Kevin Glover · @gloverbuilds · Verified formula

Calculate cords of firewood needed for the heating season based on home size, climate zone, and heating method.

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

In this article

How Much Firewood You Need
Hardwood vs Softwood

Bedarf

Kaminofen (Zuheizung): 3-6 Raummeter/Saison. Alleinheisung: 10-20 Rm. 1 Raummeter (Rm) = ~0,7 Festmeter. Buche: 35-50 €/Rm (bester Brennwert). Fichte: 25-35 €/Rm (schnell warm, schnell verbrannt). Eiche: 35-45 €/Rm (lange Glut). In Deutschland ist Buche der Gold-Standard beim Brennholz.

Trocknung

Mindestens 1-2 Jahre trocken lagern (unter 20% Restfeuchte). Frisches Holz: 50% Wasser — schlechte Verbrennung und Russentwicklung. Feuchtemessgeraet: 10-20 € — unverzichtbar.

⚡ CalcWolf Insight

Firewood calculator searches peak September-November as people prepare for winter. In cold-climate states, this is a critical seasonal purchase decision. Firewood suppliers and stove retailers advertise in this space at $3-8 CPC.

Frequently asked questions

Wie viel fuer eine Saison?▾

Zuheizung: 3-6 Rm. Alleinheizung: 10-20 Rm.

Bestes Holz?▾

Buche: bester Brennwert, schoene Flamme. Eiche: laengste Glut. Birke: schnell heiss, duftet gut.

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Kevin Glover · @gloverbuilds

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 →