Wind chimes with five hollow metal tubes are considered best because the five tubes represent the five Feng Shui natural earth elements: Earth, fire, metal, water and wood. Hollow tubes also emit a

Wind chimes with five hollow metal tubes are considered best because the five tubes represent the five Feng Shui natural earth elements: Earth, fire, metal, water and wood. Hollow tubes also emit a richer tone and sound and allow positive energy to flow through the chimes.
When hanging wind chimes, do not position them so that they have to compete for space from other garden ornaments. Clutter of any kind is a big Feng Shui "no-no." "Clutter anywhere stagnates energy," Keplinger said.
Also avoid placing wind chimes where they will compete with other pleasing sounds, such as the trickling water of a fountain or the busy song of a bird feeder.
Last but not least, refrain from placing a loud wind chime near a neighbor's window. (Unless you like to feud with your neighbor.) Loud chimes that bang at 3 a.m. might irritate those who live close by. Also consider that wind chimes can irritate dogs and cause them to bark.