diff --git a/src/main/java/com/simibubi/create/content/contraptions/processing/HeaterBlockItem.java b/src/main/java/com/simibubi/create/content/contraptions/processing/HeaterBlockItem.java
index 88be8b0f2..7235bb978 100644
--- a/src/main/java/com/simibubi/create/content/contraptions/processing/HeaterBlockItem.java
+++ b/src/main/java/com/simibubi/create/content/contraptions/processing/HeaterBlockItem.java
@@ -1,10 +1,14 @@
 package com.simibubi.create.content.contraptions.processing;
 
+import java.util.ArrayList;
+import java.util.List;
+
 import javax.annotation.Nullable;
 import javax.annotation.ParametersAreNonnullByDefault;
-import mcp.MethodsReturnNonnullByDefault;
 
+import mcp.MethodsReturnNonnullByDefault;
 import net.minecraft.block.Block;
+import net.minecraft.entity.EntityType;
 import net.minecraft.entity.LivingEntity;
 import net.minecraft.entity.monster.BlazeEntity;
 import net.minecraft.entity.player.PlayerEntity;
@@ -16,8 +20,12 @@ import net.minecraft.tileentity.MobSpawnerTileEntity;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.ActionResultType;
 import net.minecraft.util.Hand;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.WeightedSpawnerEntity;
 import net.minecraft.world.World;
+import net.minecraft.world.spawner.AbstractSpawner;
 import net.minecraftforge.common.util.FakePlayer;
+import net.minecraftforge.fml.common.ObfuscationReflectionHelper;
 
 @MethodsReturnNonnullByDefault
 @ParametersAreNonnullByDefault
@@ -30,13 +38,24 @@ public class HeaterBlockItem extends BlockItem {
 	public ActionResultType onItemUse(ItemUseContext context) {
 		TileEntity te = context.getWorld()
 			.getTileEntity(context.getPos());
-		if (te instanceof MobSpawnerTileEntity && ((MobSpawnerTileEntity) te).getSpawnerBaseLogic()
-			.getCachedEntity() instanceof BlazeEntity) {
-			ItemStack itemWithBlaze = withBlaze(context.getItem());
-			context.getItem()
-				.shrink(1);
-			dropOrPlaceBack(context.getWorld(), context.getPlayer(), itemWithBlaze);
-			return ActionResultType.SUCCESS;
+		if (te instanceof MobSpawnerTileEntity) {
+			AbstractSpawner spawner = ((MobSpawnerTileEntity) te).getSpawnerBaseLogic();
+			List<WeightedSpawnerEntity> possibleSpawns = ObfuscationReflectionHelper
+				.getPrivateValue(AbstractSpawner.class, spawner, "field_98285_e");
+			if (possibleSpawns.isEmpty()) {
+				possibleSpawns = new ArrayList<>();
+				possibleSpawns.add(
+					ObfuscationReflectionHelper.getPrivateValue(AbstractSpawner.class, spawner, "field_98282_f"));
+			}
+			for (WeightedSpawnerEntity e : possibleSpawns) {
+				if (new ResourceLocation(e.getNbt().getString("id")).equals(EntityType.BLAZE.getRegistryName())) {
+					ItemStack itemWithBlaze = withBlaze(context.getItem());
+					context.getItem()
+						.shrink(1);
+					dropOrPlaceBack(context.getWorld(), context.getPlayer(), itemWithBlaze);
+					return ActionResultType.SUCCESS;
+				}
+			}
 		}
 		return super.onItemUse(context);
 	}