diff --git a/TODO.txt b/TODO.txt
index c8502bd..a764fd9 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -44,7 +44,6 @@ materials.ores	No		Tin
 materials.ores	No		Zinc
 -------------------------------------------------------------------------------------------------------
 tech.base		No		Alloy furnace
-							-> redstone activation
 							-> make redstone activation configurable
 							-> make output hopper configurable
 							-> comparator signal configuration
diff --git a/src/java/mmm/tech/base/TBAlloyFurnaceBlock.java b/src/java/mmm/tech/base/TBAlloyFurnaceBlock.java
index 6d9a940..66b0dbc 100644
--- a/src/java/mmm/tech/base/TBAlloyFurnaceBlock.java
+++ b/src/java/mmm/tech/base/TBAlloyFurnaceBlock.java
@@ -118,17 +118,17 @@ public class TBAlloyFurnaceBlock
 		final TileEntity tileentity = world.getTileEntity( pos );
 
 		TBAlloyFurnaceBlock.keepInventory = true;
+		IBlockState nState;
+		Block nBlock;
 		if ( burning ) {
-			world.setBlockState( pos , TechBase.ALLOY_FURNACE_BLOCK_ACTIVE.getDefaultState( ).withProperty(
-					TBAlloyFurnaceBlock.FACING , iblockstate.getValue( TBAlloyFurnaceBlock.FACING ) ) , 3 );
-			world.setBlockState( pos , TechBase.ALLOY_FURNACE_BLOCK_ACTIVE.getDefaultState( ).withProperty(
-					TBAlloyFurnaceBlock.FACING , iblockstate.getValue( TBAlloyFurnaceBlock.FACING ) ) , 3 );
+			nBlock = TechBase.ALLOY_FURNACE_BLOCK_ACTIVE;
 		} else {
-			world.setBlockState( pos , TechBase.ALLOY_FURNACE_BLOCK_INACTIVE.getDefaultState( ).withProperty(
-					TBAlloyFurnaceBlock.FACING , iblockstate.getValue( TBAlloyFurnaceBlock.FACING ) ) , 3 );
-			world.setBlockState( pos , TechBase.ALLOY_FURNACE_BLOCK_INACTIVE.getDefaultState( ).withProperty(
-					TBAlloyFurnaceBlock.FACING , iblockstate.getValue( TBAlloyFurnaceBlock.FACING ) ) , 3 );
+			nBlock = TechBase.ALLOY_FURNACE_BLOCK_INACTIVE;
 		}
+		nState = nBlock.getDefaultState( ) //
+				.withProperty( TBAlloyFurnaceBlock.FACING , iblockstate.getValue( TBAlloyFurnaceBlock.FACING ) ) //
+				.withProperty( TBAlloyFurnaceBlock.POWERED , iblockstate.getValue( TBAlloyFurnaceBlock.POWERED ) );
+		world.setBlockState( pos , nState , 3 );
 		TBAlloyFurnaceBlock.keepInventory = false;
 
 		if ( tileentity != null ) {
@@ -419,10 +419,13 @@ public class TBAlloyFurnaceBlock
 	{
 		final boolean powered = worldIn.isBlockPowered( pos );
 		if ( powered != state.getValue( TBAlloyFurnaceBlock.POWERED ).booleanValue( ) ) {
-			worldIn.setBlockState( pos ,
-					state.withProperty( TBAlloyFurnaceBlock.POWERED , Boolean.valueOf( powered ) ) , 4 );
-			System.err.println( pos + " POWERED? " + ( powered ? "yes" : "no" ) );
+			worldIn.setBlockState( pos , state.withProperty( TBAlloyFurnaceBlock.POWERED , powered ) , 4 );
 		}
 	}
 
+
+	public static boolean isPowered( int meta )
+	{
+		return ( meta & 8 ) == 8;
+	}
 }
diff --git a/src/java/mmm/tech/base/TBAlloyFurnaceTileEntity.java b/src/java/mmm/tech/base/TBAlloyFurnaceTileEntity.java
index 88c8764..a82ee5e 100644
--- a/src/java/mmm/tech/base/TBAlloyFurnaceTileEntity.java
+++ b/src/java/mmm/tech/base/TBAlloyFurnaceTileEntity.java
@@ -14,6 +14,8 @@ import net.minecraft.tileentity.TileEntityFurnace;
 import net.minecraft.util.EnumFacing;
 import net.minecraft.util.ITickable;
 import net.minecraft.util.ResourceLocation;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
 import net.minecraftforge.common.capabilities.Capability;
 import net.minecraftforge.common.util.Constants.NBT;
 import net.minecraftforge.items.CapabilityItemHandler;
@@ -56,6 +58,13 @@ public class TBAlloyFurnaceTileEntity
 	}
 
 
+	@Override
+	public boolean shouldRefresh( World world , BlockPos pos , IBlockState oldState , IBlockState newSate )
+	{
+		return ! ( newSate.getBlock( ) instanceof TBAlloyFurnaceBlock );
+	}
+
+
 	@Override
 	public void readFromNBT( final NBTTagCompound compound )
 	{
@@ -135,7 +144,7 @@ public class TBAlloyFurnaceTileEntity
 
 			if ( this.burnCurrent == 0 ) {
 				if ( this.alloying != null ) {
-					if ( !this.startBurning( this.alloyCurrent ) ) {
+					if ( ! ( this.isEnabled( ) && this.startBurning( this.alloyCurrent ) ) ) {
 						this.cancelAlloying( );
 						this.burnCurrent = this.burnTotal = 0;
 					}
@@ -146,7 +155,7 @@ public class TBAlloyFurnaceTileEntity
 
 		}
 
-		if ( !this.isAlloying( ) && this.canAlloy( )
+		if ( this.isEnabled( ) && !this.isAlloying( ) && this.canAlloy( )
 				&& ( this.isBurning( ) || this.startBurning( this.recipe.burnTime ) ) ) {
 			this.startAlloying( );
 			dirty = true;
@@ -164,6 +173,12 @@ public class TBAlloyFurnaceTileEntity
 	}
 
 
+	public boolean isEnabled( )
+	{
+		return !TBAlloyFurnaceBlock.isPowered( this.getBlockMetadata( ) );
+	}
+
+
 	@Override
 	public boolean hasCapability( final Capability< ? > capability , final EnumFacing facing )
 	{