A working environment where limited amount of steam is needed, but
  a boiler is necessary.
  A working environment where the boiler room is too far, making pipe
  connection is difficult and costs of pipe setup high.
  An environment where cleanliness and pleasant aesthetics are
  required, such as a research facility or laboratory, department stores
  and other such retail spaces, etc.
  A working environment with potential fire hazards.
  A working environment with poor water quality, which limits boiler
  A working environment where steam is required even in the summer
  and boilers must be run through the year for heating purposes.