diff --git a/core/assets-raw/sprites/blocks/production/carbide-crucible-bottom.png b/core/assets-raw/sprites/blocks/production/carbide-crucible-bottom.png
new file mode 100644
index 0000000000..cc9cacb3f8
Binary files /dev/null and b/core/assets-raw/sprites/blocks/production/carbide-crucible-bottom.png differ
diff --git a/core/assets-raw/sprites/blocks/production/carbide-crucible-heat.png b/core/assets-raw/sprites/blocks/production/carbide-crucible-heat.png
new file mode 100644
index 0000000000..59a1fd5c36
Binary files /dev/null and b/core/assets-raw/sprites/blocks/production/carbide-crucible-heat.png differ
diff --git a/core/assets-raw/sprites/blocks/production/carbide-crucible-top.png b/core/assets-raw/sprites/blocks/production/carbide-crucible-top.png
new file mode 100644
index 0000000000..a5bef0741f
Binary files /dev/null and b/core/assets-raw/sprites/blocks/production/carbide-crucible-top.png differ
diff --git a/core/assets-raw/sprites/blocks/production/carbide-crucible.png b/core/assets-raw/sprites/blocks/production/carbide-crucible.png
new file mode 100644
index 0000000000..bb09add910
Binary files /dev/null and b/core/assets-raw/sprites/blocks/production/carbide-crucible.png differ
diff --git a/core/src/mindustry/content/Blocks.java b/core/src/mindustry/content/Blocks.java
index b3b8d5fca0..c06e4f3b90 100644
--- a/core/src/mindustry/content/Blocks.java
+++ b/core/src/mindustry/content/Blocks.java
@@ -952,18 +952,18 @@ public class Blocks implements ContentList{
 
         carbideCrucible = new HeatCrafter("carbide-crucible"){{
             requirements(Category.crafting, with(Items.tungsten, 60, Items.graphite, 30));
-            craftEffect = Fx.smeltsmoke;
+            craftEffect = Fx.none;
             outputItem = new ItemStack(Items.carbide, 1);
-            craftTime = 30f;
+            craftTime = 60f * 4f;
             size = 3;
+            itemCapacity = 20;
             hasPower = hasItems = true;
-            drawer = new DrawSmelter(Color.valueOf("ffc099"));
+            drawer = new DrawMulti(new DrawCrucible(), new DrawHeat());
             ambientSound = Sounds.smelter;
             ambientSoundVolume = 0.07f;
 
             heatRequirement = 10f;
 
-            //TODO use heat!
             consumes.items(with(Items.tungsten, 1, Items.graphite, 2));
             consumes.power(2f);
         }};
diff --git a/core/src/mindustry/content/Fx.java b/core/src/mindustry/content/Fx.java
index b0e0047ffb..a3faa52d6a 100644
--- a/core/src/mindustry/content/Fx.java
+++ b/core/src/mindustry/content/Fx.java
@@ -1659,6 +1659,17 @@ public class Fx{
         }
     }).layer(Layer.bullet - 1f),
 
+    crucibleSmoke = new Effect(100, e -> {
+        color(Pal.redLight);
+        alpha(e.fslope() * 0.8f);
+
+        rand.setSeed(e.id);
+        for(int i = 0; i < 5; i++){
+            v.trns(rand.random(360f), rand.random(e.finpow() * 14f)).add(e.x, e.y);
+            Fill.circle(v.x, v.y, rand.random(1.4f, 2.8f));
+        }
+    }).layer(Layer.bullet - 1f),
+
     generatespark = new Effect(18, e -> {
         randLenVectors(e.id, 5, e.fin() * 8f, (x, y) -> {
             float len = e.fout() * 4f;
diff --git a/core/src/mindustry/content/Items.java b/core/src/mindustry/content/Items.java
index 160c59cc15..c450e38bb9 100644
--- a/core/src/mindustry/content/Items.java
+++ b/core/src/mindustry/content/Items.java
@@ -108,7 +108,7 @@ public class Items implements ContentList{
 
         tungsten = new Item("tungsten", Color.valueOf("768a9a")){{
             hardness = 5;
-            cost = 1.2f;
+            cost = 1.5f;
         }};
 
         carbide = new Item("carbide", Color.valueOf("89769a")){{
diff --git a/core/src/mindustry/world/blocks/defense/BuildTurret.java b/core/src/mindustry/world/blocks/defense/BuildTurret.java
index a38adfa38f..07fbe5249a 100644
--- a/core/src/mindustry/world/blocks/defense/BuildTurret.java
+++ b/core/src/mindustry/world/blocks/defense/BuildTurret.java
@@ -22,7 +22,7 @@ import static mindustry.Vars.*;
 
 public class BuildTurret extends BaseTurret{
     public final int timerTarget = timers++, timerTarget2 = timers++;
-    public int targetInterval = 60;
+    public int targetInterval = 30;
 
     public @Load(value = "@-base", fallback = "block-@size") TextureRegion baseRegion;
     public float buildSpeed = 1f;
diff --git a/core/src/mindustry/world/blocks/heat/HeatProducer.java b/core/src/mindustry/world/blocks/heat/HeatProducer.java
index 9c1f39fb38..7e0cdb6188 100644
--- a/core/src/mindustry/world/blocks/heat/HeatProducer.java
+++ b/core/src/mindustry/world/blocks/heat/HeatProducer.java
@@ -19,7 +19,7 @@ import mindustry.world.meta.*;
 
 public class HeatProducer extends Block{
     public float heatOutput = 10f;
-    public float warmupRate = 0.25f;
+    public float warmupRate = 0.15f;
     public float consumeTime = 100;
 
     public @Load("@-heat") TextureRegion heatRegion;
diff --git a/core/src/mindustry/world/blocks/production/GenericCrafter.java b/core/src/mindustry/world/blocks/production/GenericCrafter.java
index 6df7ff8eca..aea5700c02 100644
--- a/core/src/mindustry/world/blocks/production/GenericCrafter.java
+++ b/core/src/mindustry/world/blocks/production/GenericCrafter.java
@@ -117,7 +117,7 @@ public class GenericCrafter extends Block{
 
                 progress += getProgressIncrease(craftTime);
                 totalProgress += delta();
-                warmup = Mathf.approachDelta(warmup, 1f, warmupSpeed);
+                warmup = Mathf.approachDelta(warmup, warmupTarget(), warmupSpeed);
 
                 if(Mathf.chanceDelta(updateEffectChance)){
                     updateEffect.at(x + Mathf.range(size * 4f), y + Mathf.range(size * 4));
@@ -133,6 +133,10 @@ public class GenericCrafter extends Block{
             dumpOutputs();
         }
 
+        public float warmupTarget(){
+            return 1f;
+        }
+
         public void craft(){
             consume();
 
diff --git a/core/src/mindustry/world/blocks/production/HeatCrafter.java b/core/src/mindustry/world/blocks/production/HeatCrafter.java
index 85503e032e..f0546d68d8 100644
--- a/core/src/mindustry/world/blocks/production/HeatCrafter.java
+++ b/core/src/mindustry/world/blocks/production/HeatCrafter.java
@@ -7,14 +7,16 @@ import mindustry.graphics.*;
 import mindustry.ui.*;
 import mindustry.world.blocks.heat.*;
 
+import java.util.*;
+
 /** A crafter that requires contact from heater blocks to craft. */
 public class HeatCrafter extends GenericCrafter{
     /** Base heat requirement for 100% efficiency. */
     public float heatRequirement = 10f;
     /** After heat meets this requirement, excess heat will be scaled by this number. */
-    public float overheatScale = 0.25f;
+    public float overheatScale = 1f;
     /** Maximum possible efficiency after overheat. */
-    public float maxEfficiency = 2f;
+    public float maxEfficiency = 4f;
 
     public HeatCrafter(String name){
         super(name);
@@ -24,14 +26,14 @@ public class HeatCrafter extends GenericCrafter{
     public void setBars(){
         super.setBars();
 
-        bars.add("heat", (AttributeCrafterBuild entity) ->
+        bars.add("heat", (HeatCrafterBuild entity) ->
             new Bar(() ->
-            Core.bundle.format("bar.heatpercent", (int)entity.lastHeat),
+            Core.bundle.format("bar.heatpercent", (int)entity.heat),
             () -> Pal.lightOrange,
-            () -> entity.lastHeat / heatRequirement));
+            () -> entity.heat / heatRequirement));
 
         //TODO unnecessary?
-        bars.add("efficiency", (AttributeCrafterBuild entity) ->
+        bars.add("efficiency", (HeatCrafterBuild entity) ->
             new Bar(() ->
             Core.bundle.format("bar.efficiency", (int)(entity.efficiencyScale() * 100)),
             () -> Pal.ammo,
@@ -45,30 +47,46 @@ public class HeatCrafter extends GenericCrafter{
         //TODO heat stats
     }
 
-    public class AttributeCrafterBuild extends GenericCrafterBuild{
-        public float lastHeat = 0f;
+    public class HeatCrafterBuild extends GenericCrafterBuild{
+        //TODO sideHeat could be smooth
+        public float[] sideHeat = new float[4];
+        public float heat = 0f;
 
         @Override
         public void updateTile(){
-            lastHeat = 0f;
+            Arrays.fill(sideHeat, 0f);
+            heat = 0f;
+
             for(var edge : getEdges()){
                 Building build = nearby(edge.x, edge.y);
                 if(build != null && build.team == team && build instanceof HeatBlock heater && (!build.block.rotate || (relativeTo(build) + 2) % 4 == build.rotation)){
                     //heat is distributed across building size
-                    lastHeat += heater.heat() / build.block.size;
+                    float add = heater.heat() / build.block.size;
+
+                    sideHeat[Mathf.mod(relativeTo(build), 4)] += add;
+                    heat += add;
                 }
             }
             super.updateTile();
         }
 
+        public float heatRequirement(){
+            return heatRequirement;
+        }
+
+        @Override
+        public float warmupTarget(){
+            return Mathf.clamp(heat / heatRequirement);
+        }
+
         @Override
         public float getProgressIncrease(float base){
             return super.getProgressIncrease(base) * efficiencyScale();
         }
 
         public float efficiencyScale(){
-            float over = Math.max(lastHeat - heatRequirement, 0f);
-            return Math.min(Mathf.clamp(lastHeat / heatRequirement) + over / heatRequirement * overheatScale, maxEfficiency);
+            float over = Math.max(heat - heatRequirement, 0f);
+            return Math.min(Mathf.clamp(heat / heatRequirement) + over / heatRequirement * overheatScale, maxEfficiency);
         }
     }
 }
diff --git a/core/src/mindustry/world/draw/DrawArcSmelter.java b/core/src/mindustry/world/draw/DrawArcSmelter.java
index 51706aafbe..1291d35722 100644
--- a/core/src/mindustry/world/draw/DrawArcSmelter.java
+++ b/core/src/mindustry/world/draw/DrawArcSmelter.java
@@ -49,8 +49,8 @@ public class DrawArcSmelter extends DrawBlock{
             Draw.reset();
         }
 
-        Draw.rect(top, build.x, build.y);
         Draw.rect(build.block.region, build.x, build.y);
+        if(top.found()) Draw.rect(top, build.x, build.y);
     }
 
     @Override
diff --git a/core/src/mindustry/world/draw/DrawCrucible.java b/core/src/mindustry/world/draw/DrawCrucible.java
new file mode 100644
index 0000000000..83eabcaf4c
--- /dev/null
+++ b/core/src/mindustry/world/draw/DrawCrucible.java
@@ -0,0 +1,72 @@
+package mindustry.world.draw;
+
+import arc.*;
+import arc.graphics.*;
+import arc.graphics.g2d.*;
+import arc.math.*;
+import arc.math.Interp.*;
+import arc.util.*;
+import mindustry.world.*;
+import mindustry.world.blocks.production.GenericCrafter.*;
+
+//TODO
+public class DrawCrucible extends DrawBlock{
+    public TextureRegion top, bottom;
+    public Color flameColor = Color.valueOf("f58349"), midColor = Color.valueOf("f2d585");
+    public float flameRad = 1f, circleSpace = 2f, flameRadiusScl = 10f, flameRadiusMag = 0.6f, circleStroke = 1.5f;
+
+    public float alpha = 0.5f;
+    public int particles = 30;
+    public float particleLife = 70f, particleRad = 7f, particleSize = 3f, fadeMargin = 0.4f;
+    public Interp particleInterp = new PowIn(1.5f);
+
+    @Override
+    public void draw(GenericCrafterBuild build){
+        Draw.rect(bottom, build.x, build.y);
+
+        if(build.warmup > 0f && flameColor.a > 0.001f){
+            Lines.stroke(circleStroke * build.warmup);
+
+            float si = Mathf.absin(flameRadiusScl, flameRadiusMag);
+            float a = alpha * build.warmup;
+            Draw.blend(Blending.additive);
+
+            Draw.color(midColor, a);
+            Fill.circle(build.x, build.y, flameRad + si);
+
+            Draw.color(flameColor, a);
+            Lines.circle(build.x, build.y, (flameRad + circleSpace + si) * build.warmup);
+
+            float base = (Time.time / particleLife);
+            rand.setSeed(build.id);
+            for(int i = 0; i < particles; i++){
+                float fin = (rand.random(1f) + base) % 1f, fout = 1f - fin;
+                float angle = rand.random(360f);
+                float len = particleRad * particleInterp.apply(fout);
+                Draw.alpha(a * (1f - Mathf.curve(fin, 1f - fadeMargin)));
+                Fill.circle(
+                    build.x + Angles.trnsx(angle, len),
+                    build.y + Angles.trnsy(angle, len),
+                    particleSize * fin * build.warmup
+                );
+            }
+
+            Draw.blend();
+            Draw.reset();
+        }
+
+        Draw.rect(build.block.region, build.x, build.y);
+        if(top.found()) Draw.rect(top, build.x, build.y);
+    }
+
+    @Override
+    public void load(Block block){
+        top = Core.atlas.find(block.name + "-top");
+        bottom = Core.atlas.find(block.name + "-bottom");
+    }
+
+    @Override
+    public TextureRegion[] icons(Block block){
+        return new TextureRegion[]{bottom, block.region, top};
+    }
+}
diff --git a/core/src/mindustry/world/draw/DrawHeat.java b/core/src/mindustry/world/draw/DrawHeat.java
new file mode 100644
index 0000000000..a67c10f4d3
--- /dev/null
+++ b/core/src/mindustry/world/draw/DrawHeat.java
@@ -0,0 +1,41 @@
+package mindustry.world.draw;
+
+import arc.*;
+import arc.graphics.*;
+import arc.graphics.g2d.*;
+import arc.math.*;
+import mindustry.graphics.*;
+import mindustry.world.*;
+import mindustry.world.blocks.production.GenericCrafter.*;
+import mindustry.world.blocks.production.HeatCrafter.*;
+
+public class DrawHeat extends DrawBlock{
+    public Color heatColor = new Color(1f, 0.22f, 0.22f, 0.8f);
+    public float heatPulse = 0.3f, heatPulseScl = 10f;
+
+    public TextureRegion heat;
+
+    @Override
+    public void draw(GenericCrafterBuild build){
+
+        Draw.z(Layer.blockAdditive);
+        if(build instanceof HeatCrafterBuild hc){
+            for(int i = 0; i < 4; i++){
+                if(hc.sideHeat[i] > 0){
+                    Draw.blend(Blending.additive);
+                    Draw.color(heatColor, hc.sideHeat[i] / hc.heatRequirement() * (heatColor.a * (1f - heatPulse + Mathf.absin(heatPulseScl, heatPulse))));
+                    Draw.rect(heat, build.x, build.y, i * 90f);
+                    Draw.blend();
+                    Draw.color();
+                }
+            }
+        }
+        Draw.z(Layer.block);
+
+    }
+
+    @Override
+    public void load(Block block){
+        heat = Core.atlas.find(block.name + "-heat");
+    }
+}
diff --git a/core/src/mindustry/world/draw/DrawMulti.java b/core/src/mindustry/world/draw/DrawMulti.java
new file mode 100644
index 0000000000..78262a2dd1
--- /dev/null
+++ b/core/src/mindustry/world/draw/DrawMulti.java
@@ -0,0 +1,45 @@
+package mindustry.world.draw;
+
+import arc.graphics.g2d.*;
+import mindustry.world.*;
+import mindustry.world.blocks.production.GenericCrafter.*;
+
+/** combined several DrawBlocks into one */
+public class DrawMulti extends DrawBlock{
+    public DrawBlock[] drawers = {};
+    /** specifies the drawer index that sources the icon (since there can only be one icon source) */
+    public int iconIndex = 0;
+
+    public DrawMulti(){
+    }
+
+    public DrawMulti(DrawBlock... drawers){
+        this.drawers = drawers;
+    }
+
+    @Override
+    public void draw(GenericCrafterBuild build){
+        for(var draw : drawers){
+            draw.draw(build);
+        }
+    }
+
+    @Override
+    public void drawLight(GenericCrafterBuild build){
+        for(var draw : drawers){
+            draw.drawLight(build);
+        }
+    }
+
+    @Override
+    public void load(Block block){
+        for(var draw : drawers){
+            draw.load(block);
+        }
+    }
+
+    @Override
+    public TextureRegion[] icons(Block block){
+        return drawers.length <= iconIndex ? super.icons(block) : drawers[iconIndex].icons(block);
+    }
+}
diff --git a/tools/build.gradle b/tools/build.gradle
index 17872781a8..20f2995b6b 100644
--- a/tools/build.gradle
+++ b/tools/build.gradle
@@ -38,7 +38,7 @@ def transformColors = { List<List<String>> list ->
 transformColors([["4a4b53", "6e7080", "989aa4"], ["3a5651", "3a8f64", "92dd7e"], ["bf92f9", "8a73c6", "665c9f"], /*["6e7080", "989aa4", "b0bac0"],*/ ["bc5452", "ea8878", "feb380"],
                  ["de9458", "f8c266", "ffe18f"], ["feb380", "ea8878", "bc5452"], ["d4816b", "eab678", "ffd37f"],
                  ["ffffff", "dcc6c6", "9d7f7f"], ["df7646", "b23a4d", "752249"], ["3c3837", "515151", "646567"],
-                 ["5757c1", "6f80e8", "88a4ff"], ["8f665b", "b28768", "c9a58f"]])
+                 ["5757c1", "6f80e8", "88a4ff"], ["8f665b", "b28768", "c9a58f"], ["4c5878", "768a9a", "a0b0c8"]])
 
 def antialias = { File file ->
     if(!doAntialias) return