diff --git a/common/net/minecraft/src/buildcraft/api/fuels/IronEngineFuel.java b/common/net/minecraft/src/buildcraft/api/fuels/IronEngineFuel.java
index 2c9c01e2..970ca0c5 100644
--- a/common/net/minecraft/src/buildcraft/api/fuels/IronEngineFuel.java
+++ b/common/net/minecraft/src/buildcraft/api/fuels/IronEngineFuel.java
@@ -33,13 +33,13 @@ public class IronEngineFuel {
 	}
 	
 	public final LiquidStack liquid;
-	public final int powerPerCycle;
+	public final float powerPerCycle;
 	public final int totalBurningTime;
 
-	public IronEngineFuel(int liquidId, int powerPerCycle, int totalBurningTime) {
+	public IronEngineFuel(int liquidId, float powerPerCycle, int totalBurningTime) {
 		this(new LiquidStack(liquidId, BuildCraftAPI.BUCKET_VOLUME, 0), powerPerCycle, totalBurningTime);
 	}
-	public IronEngineFuel(LiquidStack liquid, int powerPerCycle, int totalBurningTime) {
+	public IronEngineFuel(LiquidStack liquid, float powerPerCycle, int totalBurningTime) {
 		this.liquid = liquid;
 		this.powerPerCycle = powerPerCycle;
 		this.totalBurningTime = totalBurningTime;
diff --git a/common/net/minecraft/src/buildcraft/energy/Engine.java b/common/net/minecraft/src/buildcraft/energy/Engine.java
index fa6891be..6ebb5c8c 100644
--- a/common/net/minecraft/src/buildcraft/energy/Engine.java
+++ b/common/net/minecraft/src/buildcraft/energy/Engine.java
@@ -21,12 +21,12 @@ public abstract class Engine {
 
 	public int maxEnergy;
 
-	protected int currentOutput = 0;
+	protected float currentOutput = 0;
 	public @TileNetworkData
 	float progress;
 	public @TileNetworkData
 	Orientations orientation;
-	public int energy;
+	public float energy;
 	public @TileNetworkData
 	EnergyStage energyStage = EnergyStage.Blue;
 
@@ -84,7 +84,7 @@ public abstract class Engine {
 
 	public abstract void delete();
 
-	public void addEnergy(int addition) {
+	public void addEnergy(float addition) {
 		energy += addition;
 
 		if (getEnergyStage() == EnergyStage.Explosion) {
@@ -96,7 +96,7 @@ public abstract class Engine {
 		}
 	}
 
-	public int extractEnergy(int min, int max, boolean doExtract) {
+	public float extractEnergy(int min, int max, boolean doExtract) {
 		if (energy < min) {
 			return 0;
 		}
@@ -109,7 +109,7 @@ public abstract class Engine {
 			actualMax = max;
 		}
 
-		int extracted;
+		float extracted;
 
 		if (energy >= actualMax) {
 			extracted = actualMax;
@@ -154,11 +154,11 @@ public abstract class Engine {
 		return 0;
 	}
 
-	public int getEnergyStored() {
+	public float getEnergyStored() {
 		return energy;
 	}
 
-	public int getCurrentOutput() {
+	public float getCurrentOutput() {
 		return currentOutput;
 	}
 
diff --git a/common/net/minecraft/src/buildcraft/energy/EngineIron.java b/common/net/minecraft/src/buildcraft/energy/EngineIron.java
index ba12e6bb..8029cda8 100644
--- a/common/net/minecraft/src/buildcraft/energy/EngineIron.java
+++ b/common/net/minecraft/src/buildcraft/energy/EngineIron.java
@@ -227,10 +227,10 @@ public class EngineIron extends Engine {
 	public void getGUINetworkData(int i, int j) {
 		switch (i) {
 		case 0:
-			energy = j;
+			energy = j / 10;
 			break;
 		case 1:
-			currentOutput = j;
+			currentOutput = j / 10;
 			break;
 		case 2:
 			heat = j;
@@ -252,8 +252,8 @@ public class EngineIron extends Engine {
 
 	@Override
 	public void sendGUINetworkData(ContainerEngine containerEngine, ICrafting iCrafting) {
-		iCrafting.updateCraftingInventoryInfo(containerEngine, 0, energy);
-		iCrafting.updateCraftingInventoryInfo(containerEngine, 1, currentOutput);
+		iCrafting.updateCraftingInventoryInfo(containerEngine, 0, Math.round(energy * 10));
+		iCrafting.updateCraftingInventoryInfo(containerEngine, 1, Math.round(currentOutput * 10));
 		iCrafting.updateCraftingInventoryInfo(containerEngine, 2, heat);
 		iCrafting.updateCraftingInventoryInfo(containerEngine, 3, liquidQty);
 		iCrafting.updateCraftingInventoryInfo(containerEngine, 4, liquidId);
diff --git a/common/net/minecraft/src/buildcraft/energy/EngineStone.java b/common/net/minecraft/src/buildcraft/energy/EngineStone.java
index d4b3a3a1..b8c39953 100644
--- a/common/net/minecraft/src/buildcraft/energy/EngineStone.java
+++ b/common/net/minecraft/src/buildcraft/energy/EngineStone.java
@@ -155,15 +155,15 @@ public class EngineStone extends Engine {
 
 	@Override
 	public void sendGUINetworkData(ContainerEngine containerEngine, ICrafting iCrafting) {
-		iCrafting.updateCraftingInventoryInfo(containerEngine, 0, energy);
-		iCrafting.updateCraftingInventoryInfo(containerEngine, 1, currentOutput);
+		iCrafting.updateCraftingInventoryInfo(containerEngine, 0, Math.round(energy));
+		iCrafting.updateCraftingInventoryInfo(containerEngine, 1, Math.round(currentOutput));
 		iCrafting.updateCraftingInventoryInfo(containerEngine, 2, burnTime);
 		iCrafting.updateCraftingInventoryInfo(containerEngine, 3, totalBurnTime);
 	}
 
 	@Override
 	public int getHeat() {
-		return energy;
+		return Math.round(energy);
 	}
 	
 	/* IINVENTORY */
diff --git a/common/net/minecraft/src/buildcraft/energy/TileEngine.java b/common/net/minecraft/src/buildcraft/energy/TileEngine.java
index 77a129ab..1877a306 100644
--- a/common/net/minecraft/src/buildcraft/energy/TileEngine.java
+++ b/common/net/minecraft/src/buildcraft/energy/TileEngine.java
@@ -121,7 +121,7 @@ public class TileEngine extends TileBuildCraft implements IPowerReceptor, IInven
 				if (isPoweredTile(tile)) {
 					IPowerReceptor receptor = (IPowerReceptor) tile;
 
-					int extracted = engine.extractEnergy(receptor.getPowerProvider().getMinEnergyReceived(),
+					float extracted = engine.extractEnergy(receptor.getPowerProvider().getMinEnergyReceived(),
 							receptor.getPowerProvider().getMaxEnergyReceived(), true);
 
 					if (extracted > 0) {
@@ -227,7 +227,7 @@ public class TileEngine extends TileBuildCraft implements IPowerReceptor, IInven
 
 		if (engine != null) {
 			engine.progress = nbttagcompound.getFloat("progress");
-			engine.energy = nbttagcompound.getInteger("energy");
+			engine.energy = nbttagcompound.getFloat("energyF");
 			engine.orientation = Orientations.values()[orientation];
 		}
 
@@ -245,7 +245,7 @@ public class TileEngine extends TileBuildCraft implements IPowerReceptor, IInven
 		if (engine != null) {
 			nbttagcompound.setInteger("orientation", orientation);
 			nbttagcompound.setFloat("progress", engine.progress);
-			nbttagcompound.setInteger("energy", engine.energy);
+			nbttagcompound.setFloat("energyF", engine.energy);
 		}
 
 		if (engine != null) {