One winter = 5-7 cords of firewood (1 cord = 3.6 m³). Oak, hickory, maple — hardwoods, burn long. Pine — no (resin, burns fast, clogs chimney).
Process
Felling (crosscut saw, two people). Bucking into rounds (one-man saw). Splitting (wedge + sledge or axe). Stacking (woodpile by house, under shelter). 2-3 weeks of work.
Children's Work
From 8 — carry logs. From 12 — split (supervised). From 14 — saw. 'A child who can split wood will never be cold' — Amish saying.