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ELK RIVER ARENA <br />ELK RIVER, MINNESOTA <br />APRIL 8, 1998 <br /> <br />FEASABILITY STUDY <br /> <br />BUILDING HEATING SYSTEM: <br />We have also been requested to review the costs associated with adding heat to the arena. The <br />arena is currently heated with infra-red heat installed over the bleacher area. Additional heat <br />can be added into the building through the dehumidification/ventilation system. We <br />recommend installing a gas fired duct furnace in the dehumidification system ductwork. The <br />duct furnace would be sized to maintain an arena temperature of 60 °F on a winter day. We <br />estimate the cost associated with adding the duct furnace to the building to be approximately <br />$10,000.00. Some of the desiccant dehumidification units can also be designed to incorporate <br />the heating system into the design of the dehumidification unit. The costs are comparable with <br />the duct furnace discussed above. <br /> <br />CONCLUSION: <br />The Elk River Arena is beautiful facility that has been in operation only a few short years. The <br />effects of operating the arena during the humid summer months without adequate <br />dehumidification are clearly evident. Exposed metal surfaces have visible surface rust, frost <br />forms on the ice surface quickly after a resurfacing operation, and condensation drips fi-om the <br />building structure. <br /> <br />The use of a desiccant based dehumidification system is a clear and logical choice for the <br />facility. We have specified the units for numerous ice arena applications and have had excel, lent <br />results. We look forward to completing the design of the system. We are confident that the <br />City will see a dramatic change in the arena conditions once an adequately sized <br />dehumidification system is installed in the facility. <br /> <br /> END OF REPORT <br /> <br />NELSON-RUDIE & ASSOCIATES, INC. Page 8 <br /> <br /> <br />