Coke Oven

The Coke Oven is a Stone tier multiblock for burning logs into charcoal and refining coal into coal coke. The process takes 90 seconds per log/coal and produces creosote oil as a byproduct. Creosote oil can be used as fuel in furnaces, the Railcraft Boiler, the Large Boiler, and more. It can also be used to craft torches very efficiently and make lubricant in a distillery, brewery, or Distillation Tower. The Coke Oven is superseded by the Pyrolyse Oven and Advanced Coke Oven in MV.

The Coke Oven is a hollow cube surrounded by coke oven bricks and a controller on one side. Interact with the Coke Oven manually through the GUI of the controller, or use coke oven hatches to automate inserting inputs and extracting outputs. Coke oven hatch(es) may replace any brick anywhere on the structure and functions in one of three available modes: input, output (items), and output (fluids). Switch modes by right-clicking the hatch with a screwdriver and rotate the hatch by right-clicking it with a wrench. The coke oven hatch does not have its own internal inventory and therefore does not drop items or void fluids when broken--only the controller does that. Use the Multiblock Structure Hologram Projector to visualize/build the structure.

A Coke Oven with three coke oven hatches requires 114 coke oven bricks (ingots), 54 iron, and 18 bronze to build. The bricks cost 190 sand, 114 clay, and 38 uses of the wooden form. However, it is highly recommended to collect much more than that in the early game to build additional Coke Ovens.

Structure

• Controller: Front center, 2nd layer
• 0-25 Coke Oven Bricks
• 0+ Coke Oven Hatch: Any coke oven brick
• Mandatory Air: Interior of the structure

Wallsharing

Coke Ovens may wallshare each of their sides to save on coke oven bricks and coke oven hatches. That is highly recommended because it saves a significant amount of resources and reduces the number of hatches required. For example, the image to the right depicts four separate coke ovens all using the same coke oven hatch at the center of the structure.

The Coke Oven is primarily used to burn logs into charcoal, but there are a few other niche uses as seen in the following table. Bonsai trees are an excellent way to gather a significant amount of logs in the early game. Create bonsais by right-clicking crop sticks with any vanilla sapling--spruce and jungle are the best because they produce more per harvest. Another method is to craft a Tinker's Construct Lumber Axe and repeatedly harvest sacred oak trees, or any other massive tree that can drop thousands of logs at a time. Sacred oak trees spawn naturally in the Sacred Springs biome and their sapling can be earned as a quest reward in the Quest Book.

The Coke Oven is also used to refine coal into coal coke which has twice the burn time and can smelt iron into steel 33% faster in the Bricked Blast Furnace. Cactus coke and sugar coke are very similar renewable alternatives but they are not nearly as energy dense. See the following table for a summary of all the available recipes, which are also visible in NEI.

Creosote oil is a byproduct of nearly all Coke Oven recipes. Extract creosote oil manually with buckets, fluid cells, seared tanks, and super tanks or automatically with fluid pipes attached to a coke oven hatch. Store the creosote oil in a Railcraft Tank, super tank, or any other fluid tank. Creosote oil can be used as fuel in a variety of places including vanilla furnaces, the Railcraft Boiler, and the Large Boiler. It can also be used to craft torches very efficiently and make lubricant in a distillery, brewery, or Distillation Tower.

The Coke Oven automatically stops processing when there is no more room for creosote oil or charcoal/coke. Therefore, it needs to be emptied every so often to continue working. This can be done manually or automatically--see the following section for a guide on the latter. Creosote oil can also be immediately voided by breaking and replacing the controller.

The Coke Oven can be fully automated with coke oven hatches, as seen in the following image. Coke oven hatches cannot auto-pull from adjacent inventories but they can auto-push, which means a hopper or conveyor module is all that is really required. If using the latter, set the conveyor module to IMPORT because it is probably attached to the item pipe rather than the inventory itself.

In the example above, logs are pulled from the barrel with a hopper and distributed to the Coke Ovens with tin item pipes. The produced charcoal and creosote oil are both automatically pushed from the coke oven hatches into tin item pipes and wooden fluid pipes, respectively. Add more hoppers or increase the size of the pipes if more throughput is required. The wooden fluid pipes have arrows on them because they are one-directional to prevent sloshing--sneak right-click with a wrench to set the direction.

1) Multiblock does not form. The structure is not built correctly, most likely because a block is occupying the mandatory air at the very center of the structure. The Coke Oven must be hollow to form.

2) Does not run, or stops suddenly. The outputs are full or inputs are missing. The Coke Oven automatically stops processing if there is nowhere for the outputs to go.

3) The conveyor module is not pulling any logs into the Coke Ovens. The conveyor module is likely on an item pipe and therefore needs to be set to IMPORT because it is not attached to the chest or barrel that the logs are probably stored in.