The cost of the
building makes the
indoor approach
more expensive than
the outdoor. In addition,
depending
on the requirements
on the ambient conditions
inside the
hall, auxiliary equipment, such as a humidity
controller, may be required. However,
part of the building costs will be
returned by the reduced cost of the
apparatus
itself and the costs saved by
reducing outages will usually more than
cover the rest. A reduced risk of failure is
the major benefit of the indoor solution.