with a cover
Gasoline (petrol). They keep a small flame in a lantern alight at all times between Games.
When you have to leave your Bunsen burner but need to keep it alight.
The Olympic torch stays burning with propane
They go into hangers.
Commonly natural gas or propane is piped into the base of the flame. Since the conduit is encased or hidden from view it appears the flame stays alight through some mysterious means.
Planes are usually kept in hangars, which are like huge barns with sliding doors.
Someone set the hay barn alight yesterday.She was alight with emotion.Please don't set the kitchen alight this time.
An FFD ensures any gas escape is kept to a minimum if a flame goes out accidentally
The flame test is made in nonluminous flames which are not high flames.