diff --git a/core/src/mindustry/content/Blocks.java b/core/src/mindustry/content/Blocks.java
index f6bbd54367..0c3095b5f8 100644
--- a/core/src/mindustry/content/Blocks.java
+++ b/core/src/mindustry/content/Blocks.java
@@ -1454,7 +1454,8 @@ public class Blocks{
         smallHeatRedirector = new HeatConductor("small-heat-redirector"){{
             requirements(Category.crafting, with(Items.surgeAlloy, 8, Items.graphite, 8));
 
-            researchCostMultiplier = 10f;
+            researchCostMultiplier = 2f;
+            researchCostMultipliers.put(Items.graphite, 7f);
 
             group = BlockGroup.heat;
             size = 2;
diff --git a/core/src/mindustry/world/Block.java b/core/src/mindustry/world/Block.java
index a1a07a6736..7850c56d7c 100644
--- a/core/src/mindustry/world/Block.java
+++ b/core/src/mindustry/world/Block.java
@@ -1489,6 +1489,16 @@ public class Block extends UnlockableContent implements Senseable{
 
     @Override
     public double sense(Content content){
+        if(content instanceof Item item){
+            if(state.rules.infiniteResources) return 0;
+
+            for(ItemStack r : requirements){
+                if(r.item == item){
+                    return Math.round(r.amount * state.rules.buildCostMultiplier);
+                }
+            }
+            return 0f;
+        }
         return Double.NaN;
     }