Steam Hearth

The Steam Hearth is a Steam tier multiblock for smelting, blasting, and smoking raw materials. The Steam Hearth is a direct upgrade from the singleblock steam furnace because it runs at 125% speed, only uses 62.5% of the steam normally required, and offers 8 parallels. There are two tiers of the machine: basic (T1) and high-pressure (T2). The high-pressure version consumes twice the amount of steam to run twice as fast. There are also three modes to pick from. The default smelting mode can process any recipe without any restrictions or additional benefits. The blasting mode restricts the machine to ores/metals for twice the speed and steam usage. The smoking mode restricts the machine to food items for twice the speed and steam usage. The Steam Hearth is superseded by the Multi Smelter in MV.

The only structural difference between the basic and high-pressure Steam Hearth is the material of the casings. Steam is only accepted through a steam hatch (NOT an input hatch), much like other steam tier multiblocks. The steam input and output bus do not auto-push or auto-pull from adjacent inventories and therefore require hoppers, EnderIO item conduits, or conveyor modules for automation. Use the Multiblock Structure Hologram Projector to visualize/build the structure where the projector stack size determines the structure tier (1=Basic, 2=High Pressure).

Assuming plates are made in a forge hammer and rods are made with a file, a basic Steam Hearth (with the necessary hatches) requires 395 bronze ingots and 9 brick blocks to build. A high-pressure Steam Hearth requires 359 steel ingots, 63 bronze ingots, and 3 brick blocks to build.

Wallsharing

Steam Hearths may wallshare each of their sides to save on casings and buses/hatches. This is highly recommended because it saves a significant amount of bronze and steel. Sharing also works with other steam tier multiblocks that use the same type of casing.

The Steam Hearth is a direct upgrade from the singleblock steam furnace because it runs at 125% speed, only uses 62.5% of the steam normally required, and offers 8 parallels. Upgrading to high-pressure (T2) doubles both the processing speed and steam consumption, as seen in the following table. Expect to use the Steam Hearth up to HV because of its large bonuses over singleblock machines.

The Steam Hearth has three unique modes, listed below, to further increase the throughput of the machine by specializing in particular recipes. Switch modes in the GUI of the controller, or by using a screwdriver on the controller. These modes mimic the vanilla furnace, blast furnace, and smoker.

• Smelting - No restrictions or additional benefits. The default universal mode.
• Blasting - Restricted to ores/metals for twice the speed and steam consumption.
• Smoking - Restricted to raw foods for twice the speed and steam consumption.

The following table summarizes the steam consumption and speed for both tiers of the Steam Hearth and the three different modes. For reference, a vanilla furnace smelts 0.10 items per second and a vanilla blast furnace/smoker smelts 0.20 items per second.