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sadler's wells theatre, London

Careful design of the auditorium
and auditorium diffusers has ensured that air
may be supplied at 16-18°C from high-level diffusers
to achieve an average auditorium room temperature
of 23-25°C.
This temperature is allowed to
rise slightly higher in summer to cater for the
lighter clothing the audience is 'expected to
wear'. During winter, when heavier clothes are
worn, the lower external temperatures are used
to achieve a slightly lower average auditorium
temperature of 22-24°C.
The bore hole water cooling system
has meant that in place of the traditional noisy
chillers, a simple pump set is used, thereby reducing
space and capital costs (approx. £30,000),
which also considerably reduced running costs.
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