@Override
public void renderBlock(RenderBlocks renderblocks, IBlockAccess world, int x, int y, int z, Block block) {
TileEntity t = world.getTileEntity(x, y, z);
if (t instanceof TileBoilerTank) {
TileBoilerTank myTile = (TileBoilerTank) t;
float x1, x2, z1, z2;
x1 = z1 = BORDER;
x2 = z2 = 1 - BORDER;
if (myTile.isConnected()) {
TileEntity tile = world.getTileEntity(x - 1, y, z);
if (tile instanceof TileBoilerTank) {
x1 = 0;
}
tile = world.getTileEntity(x + 1, y, z);