diff --git a/src/main/java/gregtech/common/tileentities/boilers/GT_MetaTileEntity_Boiler.java b/src/main/java/gregtech/common/tileentities/boilers/GT_MetaTileEntity_Boiler.java
index a5b4fba4ab7..b89f1f40fea 100644
--- a/src/main/java/gregtech/common/tileentities/boilers/GT_MetaTileEntity_Boiler.java
+++ b/src/main/java/gregtech/common/tileentities/boilers/GT_MetaTileEntity_Boiler.java
@@ -278,9 +278,9 @@ private void updateFuelTimed(IGregTechTileEntity aBaseMetaTileEntity, long aTick
     }
 
     protected void ventSteamIfTankIsFull() {
-        if ((this.mSteam != null) && (this.mSteam.amount > getCapacity())) {
+        if ((this.mSteam != null) && (this.mSteam.amount > getSteamCapacity())) {
             sendSound(SOUND_EVENT_LET_OFF_EXCESS_STEAM);
-            this.mSteam.amount = getCapacity() * 3 / 4;
+            this.mSteam.amount = getSteamCapacity() * 3 / 4;
         }
     }
 
@@ -391,6 +391,8 @@ public int getCapacity() {
         return 16000;
     }
 
+    protected int getSteamCapacity() { return getCapacity(); }
+
     protected abstract int getProductionPerSecond();
 
     protected abstract int getMaxTemperature();
@@ -440,7 +442,7 @@ public void addUIWidgets(ModularWindow.Builder builder, UIBuildContext buildCont
             .widget(createFuelSlot())
             .widget(createAshSlot())
             .widget(
-                new ProgressBar().setProgress(() -> mSteam == null ? 0 : (float) mSteam.amount / getCapacity())
+                new ProgressBar().setProgress(() -> mSteam == null ? 0 : (float) mSteam.amount / getSteamCapacity())
                     .setTexture(getProgressbarEmpty(), GT_UITextures.PROGRESSBAR_BOILER_STEAM, 10)
                     .setDirection(ProgressBar.Direction.UP)
                     .setPos(70, 25)
diff --git a/src/main/java/gregtech/common/tileentities/boilers/GT_MetaTileEntity_Boiler_Lava.java b/src/main/java/gregtech/common/tileentities/boilers/GT_MetaTileEntity_Boiler_Lava.java
index 65b7df004a3..7fe3a3f4bb1 100644
--- a/src/main/java/gregtech/common/tileentities/boilers/GT_MetaTileEntity_Boiler_Lava.java
+++ b/src/main/java/gregtech/common/tileentities/boilers/GT_MetaTileEntity_Boiler_Lava.java
@@ -456,7 +456,7 @@ public int fill(FluidStack aFluid, boolean doFill) {
     public FluidTankInfo[] getTankInfo(ForgeDirection side) {
         return new FluidTankInfo[] { super.getTankInfo(side)[0],
             new FluidTankInfo(this.lavaTank.getFluid(), this.lavaTank.getCapacity()),
-            new FluidTankInfo(getDrainableStack(), getCapacity()) };
+            new FluidTankInfo(getDrainableStack(), getSteamCapacity()) };
     }
 
     @Override
@@ -479,7 +479,7 @@ public void addUIWidgets(ModularWindow.Builder builder, UIBuildContext buildCont
                     .setPos(115, 61))
             .widget(createAshSlot())
             .widget(
-                new ProgressBar().setProgress(() -> mSteam == null ? 0 : (float) mSteam.amount / getCapacity())
+                new ProgressBar().setProgress(() -> mSteam == null ? 0 : (float) mSteam.amount / getSteamCapacity())
                     .setTexture(getProgressbarEmpty(), GT_UITextures.PROGRESSBAR_BOILER_STEAM, 10)
                     .setDirection(ProgressBar.Direction.UP)
                     .setPos(70, 25)