diff --git a/core/assets-raw/sprites/blocks/production/oxidation-chamber-bottom.png b/core/assets-raw/sprites/blocks/production/oxidation-chamber-bottom.png
new file mode 100644
index 0000000000..4f4b6a2b8f
Binary files /dev/null and b/core/assets-raw/sprites/blocks/production/oxidation-chamber-bottom.png differ
diff --git a/core/assets-raw/sprites/blocks/production/oxidation-chamber-glass.png b/core/assets-raw/sprites/blocks/production/oxidation-chamber-glass.png
new file mode 100644
index 0000000000..129d100c57
Binary files /dev/null and b/core/assets-raw/sprites/blocks/production/oxidation-chamber-glass.png differ
diff --git a/core/assets-raw/sprites/blocks/production/oxidation-chamber-glow.png b/core/assets-raw/sprites/blocks/production/oxidation-chamber-glow.png
new file mode 100644
index 0000000000..f1a3713cb8
Binary files /dev/null and b/core/assets-raw/sprites/blocks/production/oxidation-chamber-glow.png differ
diff --git a/core/assets-raw/sprites/blocks/production/oxidation-chamber-heat.png b/core/assets-raw/sprites/blocks/production/oxidation-chamber-heat.png
new file mode 100644
index 0000000000..1fbb3a69f3
Binary files /dev/null and b/core/assets-raw/sprites/blocks/production/oxidation-chamber-heat.png differ
diff --git a/core/assets-raw/sprites/blocks/production/oxidation-chamber-liquid.png b/core/assets-raw/sprites/blocks/production/oxidation-chamber-liquid.png
new file mode 100644
index 0000000000..6cad59a0bd
Binary files /dev/null and b/core/assets-raw/sprites/blocks/production/oxidation-chamber-liquid.png differ
diff --git a/core/assets-raw/sprites/blocks/production/oxidation-chamber-top1.png b/core/assets-raw/sprites/blocks/production/oxidation-chamber-top1.png
new file mode 100644
index 0000000000..6d4fb92302
Binary files /dev/null and b/core/assets-raw/sprites/blocks/production/oxidation-chamber-top1.png differ
diff --git a/core/assets-raw/sprites/blocks/production/oxidation-chamber-top2.png b/core/assets-raw/sprites/blocks/production/oxidation-chamber-top2.png
new file mode 100644
index 0000000000..c946c052c8
Binary files /dev/null and b/core/assets-raw/sprites/blocks/production/oxidation-chamber-top2.png differ
diff --git a/core/assets-raw/sprites/blocks/production/oxidation-chamber.png b/core/assets-raw/sprites/blocks/production/oxidation-chamber.png
index 30703cf5ea..9c2f9518e9 100644
Binary files a/core/assets-raw/sprites/blocks/production/oxidation-chamber.png and b/core/assets-raw/sprites/blocks/production/oxidation-chamber.png differ
diff --git a/core/assets-raw/sprites/blocks/production/silicon-arc-furnace.png b/core/assets-raw/sprites/blocks/production/silicon-arc-furnace.png
index 4696b92ab1..d4481b2f65 100644
Binary files a/core/assets-raw/sprites/blocks/production/silicon-arc-furnace.png and b/core/assets-raw/sprites/blocks/production/silicon-arc-furnace.png differ
diff --git a/core/assets/icons/icons.properties b/core/assets/icons/icons.properties
index c4b96bcd6c..f306ac249f 100755
--- a/core/assets/icons/icons.properties
+++ b/core/assets/icons/icons.properties
@@ -444,3 +444,4 @@
 63262=electrolyzer|block-electrolyzer-ui
 63261=ozone|liquid-ozone-ui
 63260=reinforced-liquid-junction|block-reinforced-liquid-junction-ui
+63259=oxidation-chamber|block-oxidation-chamber-ui
diff --git a/core/assets/logicids.dat b/core/assets/logicids.dat
index 337afe3179..80c73da037 100644
Binary files a/core/assets/logicids.dat and b/core/assets/logicids.dat differ
diff --git a/core/src/mindustry/content/Blocks.java b/core/src/mindustry/content/Blocks.java
index d0c9b976cc..ddd3696c5b 100644
--- a/core/src/mindustry/content/Blocks.java
+++ b/core/src/mindustry/content/Blocks.java
@@ -935,7 +935,7 @@ public class Blocks implements ContentList{
             craftTime = 30f;
             size = 2;
             hasPower = hasItems = hasLiquids = true;
-            rotatePlan = false;
+            rotateDraw = false;
 
             consumes.liquid(Liquids.oil, 0.1f);
             consumes.power(0.7f);
@@ -987,8 +987,6 @@ public class Blocks implements ContentList{
         }};
 
         //TODO sprite
-        //TODO 'oxidation chamber'
-        if(false)
         oxidationChamber = new HeatProducer("oxidation-chamber"){{
             requirements(Category.crafting, with(Items.tungsten, 60, Items.graphite, 30));
             size = 3;
@@ -999,11 +997,19 @@ public class Blocks implements ContentList{
             consumes.item(Items.beryllium);
             consumes.power(1f);
 
+            rotateDraw = false;
+
+            //TODO rotor?
+            //TODO vent
+            iconOverride = new String[]{"-bottom", "", "-top1", "-glass"};
+            drawer = new DrawMulti(new DrawRegion("-bottom"), new DrawLiquidRegion(), new DrawBlock(), new DrawHeatOutput(), new DrawRegion("-glass"));
+
             craftTime = 60f * 3f;
             liquidCapacity = 30f;
             heatOutput = 8f;
         }};
 
+        //TODO check sprite correctness
         heatReactor = new HeatProducer("heat-reactor"){{
             //TODO quadvent
             //TODO coolant?
@@ -1021,7 +1027,7 @@ public class Blocks implements ContentList{
             size = 3;
             itemCapacity = 20;
             hasPower = hasItems = true;
-            drawer = new DrawMulti(new DrawCrucible(), new DrawHeat());
+            drawer = new DrawMulti(new DrawCrucible(), new DrawHeatInput());
             ambientSound = Sounds.smelter;
             ambientSoundVolume = 0.07f;
 
diff --git a/core/src/mindustry/entities/comp/BuildingComp.java b/core/src/mindustry/entities/comp/BuildingComp.java
index 81e5064f18..3eb4c2573d 100644
--- a/core/src/mindustry/entities/comp/BuildingComp.java
+++ b/core/src/mindustry/entities/comp/BuildingComp.java
@@ -337,6 +337,11 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
         return rotation * 90;
     }
 
+    /** @return preferred rotation of main texture region to be drawn */
+    public float drawrot(){
+        return block.rotate && block.rotateDraw ? rotation * 90 : 0f;
+    }
+
     public Floor floor(){
         return tile.floor();
     }
@@ -930,9 +935,9 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
 
     public void draw(){
         if(block.variants == 0){
-            Draw.rect(block.region, x, y, block.rotate ? rotdeg() : 0);
+            Draw.rect(block.region, x, y, drawrot());
         }else{
-            Draw.rect(block.variantRegions[Mathf.randomSeed(tile.pos(), 0, Math.max(0, block.variantRegions.length - 1))], x, y, block.rotate ? rotdeg() : 0);
+            Draw.rect(block.variantRegions[Mathf.randomSeed(tile.pos(), 0, Math.max(0, block.variantRegions.length - 1))], x, y, drawrot());
         }
 
         drawTeamTop();
diff --git a/core/src/mindustry/mod/ContentParser.java b/core/src/mindustry/mod/ContentParser.java
index f5840f7df6..6e9f49d035 100644
--- a/core/src/mindustry/mod/ContentParser.java
+++ b/core/src/mindustry/mod/ContentParser.java
@@ -64,6 +64,7 @@ public class ContentParser{
         });
         put(Sortf.class, (type, data) -> field(UnitSorts.class, data));
         put(Interp.class, (type, data) -> field(Interp.class, data));
+        put(Blending.class, (type, data) -> field(Blending.class, data));
         put(CacheLayer.class, (type, data) -> field(CacheLayer.class, data));
         put(Attribute.class, (type, data) -> Attribute.get(data.asString()));
         put(Schematic.class, (type, data) -> {
diff --git a/core/src/mindustry/world/Block.java b/core/src/mindustry/world/Block.java
index 2a2c137d29..e77f139333 100644
--- a/core/src/mindustry/world/Block.java
+++ b/core/src/mindustry/world/Block.java
@@ -90,8 +90,8 @@ public class Block extends UnlockableContent{
     public boolean solidifes;
     /** whether this is rotatable */
     public boolean rotate;
-    /** if set to plan, the plan region won't rotate when drawing */
-    public boolean rotatePlan = true;
+    /** if rotate is true and this is false, the region won't rotate when drawing */
+    public boolean rotateDraw = true;
     /** number of different variant regions to use */
     public int variants = 0;
     /** whether to draw a rotation arrow - this does not apply to lines of blocks */
@@ -579,7 +579,7 @@ public class Block extends UnlockableContent{
 
     public void drawRequestRegion(BuildPlan plan, Eachable<BuildPlan> list){
         TextureRegion reg = getRequestRegion(plan, list);
-        Draw.rect(reg, plan.drawx(), plan.drawy(), !rotate || !rotatePlan ? 0 : plan.rotation * 90);
+        Draw.rect(reg, plan.drawx(), plan.drawy(), !rotate || !rotateDraw ? 0 : plan.rotation * 90);
 
         if(plan.worldContext && player != null && teamRegion != null && teamRegion.found()){
             if(teamRegions[player.team().id] == teamRegion) Draw.color(player.team().color);
diff --git a/core/src/mindustry/world/blocks/heat/HeatProducer.java b/core/src/mindustry/world/blocks/heat/HeatProducer.java
index c547923be8..9ccb8497e3 100644
--- a/core/src/mindustry/world/blocks/heat/HeatProducer.java
+++ b/core/src/mindustry/world/blocks/heat/HeatProducer.java
@@ -14,9 +14,13 @@ public class HeatProducer extends GenericCrafter{
     public HeatProducer(String name){
         super(name);
 
-        drawer = new DrawHeatOutput();
-        update = solid = rotate = true;
+        drawer = new DrawMulti(new DrawHeatOutput(){{
+            drawRegion = true;
+        }});
+        rotateDraw = false;
+        rotate = true;
         canOverdrive = false;
+        drawArrow = true;
     }
 
     @Override
diff --git a/core/src/mindustry/world/draw/DrawArcSmelter.java b/core/src/mindustry/world/draw/DrawArcSmelter.java
index 1291d35722..d093d6e3b4 100644
--- a/core/src/mindustry/world/draw/DrawArcSmelter.java
+++ b/core/src/mindustry/world/draw/DrawArcSmelter.java
@@ -16,23 +16,26 @@ public class DrawArcSmelter extends DrawBlock{
     public float alpha = 0.68f;
     public int particles = 25;
     public float particleLife = 40f, particleRad = 7f, particleStroke = 1.1f, particleLen = 3f;
+    public boolean drawCenter = true;
+    public boolean drawBottom = true, drawTop = true, drawRegion = true;
+    public Blending blending = Blending.additive;
 
     @Override
     public void draw(GenericCrafterBuild build){
-        Draw.rect(bottom, build.x, build.y);
+        if(drawBottom) 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.blend(blending);
 
             Draw.color(midColor, a);
-            Fill.circle(build.x, build.y, flameRad + si);
+            if(drawCenter) Fill.circle(build.x, build.y, flameRad + si);
 
             Draw.color(flameColor, a);
-            Lines.circle(build.x, build.y, (flameRad + circleSpace + si) * build.warmup);
+            if(drawCenter) Lines.circle(build.x, build.y, (flameRad + circleSpace + si) * build.warmup);
 
             Lines.stroke(particleStroke * build.warmup);
 
@@ -49,8 +52,8 @@ public class DrawArcSmelter extends DrawBlock{
             Draw.reset();
         }
 
-        Draw.rect(build.block.region, build.x, build.y);
-        if(top.found()) Draw.rect(top, build.x, build.y);
+        if(drawRegion) Draw.rect(build.block.region, build.x, build.y);
+        if(drawTop && top.found()) Draw.rect(top, build.x, build.y);
     }
 
     @Override
diff --git a/core/src/mindustry/world/draw/DrawBlock.java b/core/src/mindustry/world/draw/DrawBlock.java
index e769c1585f..f1f32c5560 100644
--- a/core/src/mindustry/world/draw/DrawBlock.java
+++ b/core/src/mindustry/world/draw/DrawBlock.java
@@ -15,7 +15,7 @@ public class DrawBlock{
 
     /** Draws the block. */
     public void draw(GenericCrafterBuild build){
-        Draw.rect(build.block.region, build.x, build.y, build.block.rotate ? build.rotdeg() : 0);
+        Draw.rect(build.block.region, build.x, build.y, build.drawrot());
     }
 
     /** Draws any extra light for the block. */
diff --git a/core/src/mindustry/world/draw/DrawHeat.java b/core/src/mindustry/world/draw/DrawHeatInput.java
similarity index 94%
rename from core/src/mindustry/world/draw/DrawHeat.java
rename to core/src/mindustry/world/draw/DrawHeatInput.java
index a67c10f4d3..a0361bdd8f 100644
--- a/core/src/mindustry/world/draw/DrawHeat.java
+++ b/core/src/mindustry/world/draw/DrawHeatInput.java
@@ -9,7 +9,8 @@ import mindustry.world.*;
 import mindustry.world.blocks.production.GenericCrafter.*;
 import mindustry.world.blocks.production.HeatCrafter.*;
 
-public class DrawHeat extends DrawBlock{
+/** Not standalone. */
+public class DrawHeatInput extends DrawBlock{
     public Color heatColor = new Color(1f, 0.22f, 0.22f, 0.8f);
     public float heatPulse = 0.3f, heatPulseScl = 10f;
 
diff --git a/core/src/mindustry/world/draw/DrawHeatOutput.java b/core/src/mindustry/world/draw/DrawHeatOutput.java
index 1a8bf20e6d..36783e09ed 100644
--- a/core/src/mindustry/world/draw/DrawHeatOutput.java
+++ b/core/src/mindustry/world/draw/DrawHeatOutput.java
@@ -17,10 +17,11 @@ public class DrawHeatOutput extends DrawBlock{
 
     public Color heatColor = new Color(1f, 0.22f, 0.22f, 0.8f);
     public float heatPulse = 0.3f, heatPulseScl = 10f, glowMult = 1.2f;
+    public boolean drawRegion = false;
 
     @Override
     public void draw(GenericCrafterBuild build){
-        Draw.rect(build.block.region, build.x, build.y);
+        if(drawRegion) Draw.rect(build.block.region, build.x, build.y);
 
         Draw.rect(build.rotation > 1 ? top2 : top1, build.x, build.y, build.rotdeg());
 
@@ -28,9 +29,9 @@ public class DrawHeatOutput extends DrawBlock{
             Draw.z(Layer.blockAdditive);
             Draw.blend(Blending.additive);
             Draw.color(heatColor, heater.heatFrac() * (heatColor.a * (1f - heatPulse + Mathf.absin(heatPulseScl, heatPulse))));
-            Draw.rect(heat, build.x, build.y, build.rotdeg());
+            if(heat.found()) Draw.rect(heat, build.x, build.y, build.rotdeg());
             Draw.color(Draw.getColor().mul(glowMult));
-            Draw.rect(glow, build.x, build.y);
+            if(glow.found()) Draw.rect(glow, build.x, build.y);
             Draw.blend();
             Draw.color();
         }
@@ -38,7 +39,7 @@ public class DrawHeatOutput extends DrawBlock{
 
     @Override
     public void drawPlan(GenericCrafter block, BuildPlan plan, Eachable<BuildPlan> list){
-        Draw.rect(block.region, plan.drawx(), plan.drawy());
+        if(drawRegion) Draw.rect(block.region, plan.drawx(), plan.drawy());
         Draw.rect(plan.rotation > 1 ? top2 : top1, plan.drawx(), plan.drawy(), plan.rotation * 90);
     }
 
diff --git a/core/src/mindustry/world/draw/DrawLiquidRegion.java b/core/src/mindustry/world/draw/DrawLiquidRegion.java
index ac2e1ce14f..fe2c00787f 100644
--- a/core/src/mindustry/world/draw/DrawLiquidRegion.java
+++ b/core/src/mindustry/world/draw/DrawLiquidRegion.java
@@ -29,12 +29,11 @@ public class DrawLiquidRegion extends DrawBlock{
     @Override
     public void draw(GenericCrafterBuild build){
 
-        if(drawLiquid != null){
-            Drawf.liquid(liquid, build.x, build.y,
-                build.liquids.get(drawLiquid) / build.block.liquidCapacity,
-                drawLiquid.color
-            );
-        }
+        Liquid drawn = drawLiquid != null ? drawLiquid : build.liquids.current();
+        Drawf.liquid(liquid, build.x, build.y,
+            build.liquids.get(drawn) / build.block.liquidCapacity,
+            drawn.color
+        );
     }
 
     @Override