For renovation uses, these Chinese coins are the most powerful enhancer. It is square within and round without, which represents the powerful union of heaven and earth. When energized with a red thread, it is a powerful emblem of wealth and prosperity. Place these 3 coins under the floor of the main door, every corner of the living room, dining room, bedroom, back door and all the corridors.
Note that the Yang side of the coins should always face up. The Yang side has 4 characters while the the Yin side has two.