Firebox

Cast-iron firebars over a refractory rim. Charge it with coke, coal or charcoal - one fuel at a time - and the flame is drawn across the hearth beside it.

Charge it through the Charge Door in front of it. A bed lit and left to thin past half its capacity is the one way a reverberatory furnace goes out on its own, so recharge it before it runs that low.

See Coke and fuel and Furnaces and heat.

Firebox, isometric
Firebox, the front (south)frontFirebox, the right (east)rightFirebox, the back (north)backFirebox, the left (west)leftFirebox, the top (up)top
Firebox, drawn from the front, which faces south.

Made by

any Refractory brick x 2any Refractory brick x 2any Refractory brick x 2
Rod (Iron or Steel)Rod (Iron or Steel)Rod (Iron or Steel)
any Refractory brick x 2any Refractory brick x 2any Refractory brick x 2
Firebox

Needs: 12 any Refractory brick, 3 Rod (Iron or Steel); makes 1 Firebox

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