760 Long Road Crossing Dr. • Chesterfield MO 63005 800-899-1989 • www.cambridge-eng.com OPERATING CONDITIONS Operating Hours: 24 hrs/day 5 days/wk Design Temperature: 55° @ 9° Average Temperature: 62° Heating System: Cambridge Space Heaters 2 @ 1139 MBH Roof top mounting ACTUAL FUEL USE for the 1997-98 heating season (3,051 Heating Degree Days @ 62°) 4.0 Btu / HDD / sq. ft. CALCULATED OPERATING COST for normal heating season (3,732 H

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