Firewood: volume & heat
stacked → solid m³, calorific value by species, seasonal need and price per kWh of heat
Parameters
Result
Needed for the season
7,50 stacked m³
≈ 10 458,00 UAH
Solid wood in purchase6,80 m³
Useful heat from purchase10 710,00 kWh
Covers seasonal need134,00%
Price per kWh of heat1,31 UAH
A stacked m³ ≠ solid m³: stacked logs contain 30–40% air. Wet wood yields 30–50% less heat and tars the chimney — dry it 1–2 years. Poplar is cheaper than oak but you need almost twice the volume. A gasification boiler (85–90% eff.) extracts notably more heat than a basic stove (55–65%).
About Firewood: volume & heat
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