Heater

Evidence

Ran on Kiln's test stand (2026-11-04): Heater did not start: java.lang.NoClassDefFoundError: net/minecraft/world/level/block/WeatheringCopperCollection; HeaterClient did not start: java.lang.NoSuchFieldError: Class net.minecraft.core.registries.BuiltInRegistries does not have member field 'net.minecraft.core.Registry MENU'.

What it needs from Kiln

• net.fabricmc.fabric.api.creativetab.v1.FabricCreativeModeTab
• net.fabricmc.fabric.api.lookup.v1.block.BlockApiLookup
• net.fabricmc.fabric.api.lookup.v1.block.BlockApiLookup.BlockApiProvider
• net.fabricmc.fabric.api.object.builder.v1.block.entity.FabricBlockEntityTypeBuilder
• net.fabricmc.fabric.api.object.builder.v1.block.entity.FabricBlockEntityTypeBuilder.Factory
• net.fabricmc.fabric.api.transfer.v1.item.ContainerStorage
• net.fabricmc.fabric.api.transfer.v1.item.ItemStorage
• net.fabricmc.fabric.api.transfer.v1.storage.Storage
• net.fabricmc.fabric.api.transfer.v1.storage.StoragePreconditions
• net.fabricmc.fabric.api.transfer.v1.storage.base.FilteringStorage
• net.fabricmc.fabric.api.transfer.v1.storage.base.InsertionOnlyStorage
• net.fabricmc.fabric.api.transfer.v1.storage.base.SingleVariantStorage
• net.fabricmc.fabric.api.transfer.v1.transaction.Transaction
• net.fabricmc.fabric.api.transfer.v1.transaction.TransactionContext
• net.fabricmc.fabric.api.transfer.v1.transaction.TransactionContext.OuterCloseCallback
• net.fabricmc.fabric.api.transfer.v1.transaction.TransactionContext.Result
• net.minecraft.client.gui.screens.MenuScreens
• net.minecraft.client.gui.screens.MenuScreens.ScreenConstructor
• net.minecraft.client.gui.screens.inventory.AbstractContainerScreen
• net.minecraft.client.renderer.RenderPipelines
• net.minecraft.core.Direction.Axis
• net.minecraft.core.NonNullList
• net.minecraft.core.component.DataComponentGetter
• net.minecraft.core.component.DataComponentMap
• net.minecraft.core.component.DataComponentMap.Builder
• net.minecraft.core.component.DataComponentType
• net.minecraft.core.component.DataComponents
• net.minecraft.core.particles.ParticleTypes
• net.minecraft.references.BlockItemId
• net.minecraft.util.Mth
• net.minecraft.world.Container
• net.minecraft.world.ContainerHelper
• net.minecraft.world.MenuProvider
• net.minecraft.world.SimpleContainer
• net.minecraft.world.WorldlyContainer
• net.minecraft.world.flag.FeatureFlags
• net.minecraft.world.inventory.AbstractContainerMenu
• net.minecraft.world.inventory.ContainerData
• net.minecraft.world.inventory.ContainerInput
• net.minecraft.world.inventory.FurnaceFuelSlot
• and 50 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Machines (0.4)

In the author's words

Propagate fuel power from heaters through pipes and thermostats and into furnaces, smokers, and compatible machines.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file heater-4.3+26.3.jar. The scan reads the mod's classes; it does not run them.