Indoor sports facilities for combined school and community use are a growing trend. They often operate well beyond the school day, and these long hours of operation mean the selection and design of the heating system is critical if it is to produce a satisfactory environment for users while keeping energy costs to a minimum. According to the Scottish Sports Council's Technical Digest 203, Sports Halls Heating and Ventilation, 1995, energy can account for 25-30% of the overall operating cost of a dry sports facility and is often the next largest cost after staff.
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