The window faces the chimney. The chimney is a dirty thing. You can use a mirror to melt it, but the mirror should not be too big, because the mirror also says it will reflect wealth, which is not conducive to gathering wealth.
It's unlucky if there are sharp corners or big chimneys outside the window. You can raise a few turtles on the windowsill or put a turtle mascot to solve it.
I hope it helps you.