Charge Door
The work door of a reverberatory furnace. Open it to charge and draw the hearth; keep it shut to hold the heat.
The door claims the cell above itself as well, so it stands two tall wherever it is set: in front of a Coke oven chamber or a Heating furnace hearth alike, it is the one block both furnaces share. Right-click to swing it, and shut it between visits; an open door spills the draught the stack is pulling and runs the furnace it belongs to cooler for as long as it stands open.

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topMade by
| any Hammer (tool, not consumed) | ||
| Plate (Iron or Steel) | Nails and strips (Iron or Steel) x 2 | Plate (Iron or Steel) |
| Refractory brick (Tier 3) x 2 | Refractory brick (Tier 3) x 2 | Refractory brick (Tier 3) x 2 |
| Charge Door | ||
Needs: 6 Refractory brick (Tier 3), 2 Plate (Iron or Steel), 2 Nails and strips (Iron or Steel), a Hammer (kept); makes 1 Charge Door
Amounts are the mod's defaults; the recipe-cost level changes them (see recipe cost levels).