Heating Furnace Core
Starts the Heating furnace.
The core stands at the near end of the furnace and the flue rises in its own column above it. Place it first, then ctrl plus shift plus right-click it to raise the build outline of the Heating furnace and its shopping list; the ash pit, the firebox, the hearth and the charge door are laid from it. Its side variant fixes which way the furnace faces and it wears the refractory tier it was crafted from. The stack is fixed at the height the layout declares, so nothing is raised by hand here; the core reports the fire and how many hearth rows are loaded and up to rolling heat.

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topMade by
| any Refractory brick x 4 | Plate (Iron or Steel) | any Refractory brick x 4 |
| Rod (Iron or Steel) x 2 | Fire clay x 8 | Rod (Iron or Steel) x 2 |
| any Refractory brick x 4 | any Refractory brick x 4 | any Refractory brick x 4 |
| Heating Furnace Core | ||
Needs: 20 any Refractory brick, 4 Rod (Iron or Steel), 8 Fire clay, 1 Plate (Iron or Steel); makes 1 Heating Furnace Core
Amounts are the mod's defaults; the recipe-cost level changes them (see recipe cost levels).