Puddling Hearth

A fettled cast-iron bed, three rows wide. Fettle a row with iron oxide, then charge it with up to three pigs.

An unfettled row refuses pig outright, because pig laid straight onto bare iron would weld to it; fettling is a running cost paid every heat, not a one-time build cost.

See Iron and its grades for the charge, the yield and the cinder that closes the loop.

Puddling Hearth, isometric
Puddling Hearth, the front (south)frontPuddling Hearth, the right (east)rightPuddling Hearth, the back (north)backPuddling Hearth, the left (west)leftPuddling Hearth, the top (up)top
Puddling Hearth, footprint
Puddling Hearth, drawn from the front, which faces south.

Made by

any Hammer (tool, not consumed)
Heavy Cast PlateHeavy Cast PlateHeavy Cast Plate
Nails and strips (Iron or Steel) x 2Nails and strips (Iron or Steel) x 2
Puddling Hearth

Needs: 3 Heavy Cast Plate, 4 Nails and strips (Iron or Steel), a Hammer (kept); makes 1 Puddling Hearth

Amounts are the mod's defaults; the recipe-cost level changes them (see recipe cost levels).