Another name for a Gas Harp is a Hall Hoop. These
Hoops make great hall fixtures as well as great
fixtures for small spaces. Hall hoops were used over
Wash Stands with pitchers and bowls before modern
plumbing was installed. A gas pipe would be on the
ceiling in the corner or against the wall in a bedroom
and Hoops would be for over the wash stand.
When people installed modern plumbing but were still
lighting with gas there would be a hall hoop in the
bathroom. This is a great light for small rooms as
long as the ceiling is high. You usually need 24 inches
of clearance to do a hall hoop. If you want the bottom
to be about 6 foot nine from the floor then your ceiling
needs to be 8 foot nine inches to do a Gas Harp.