760 Long Road Crossing Dr. • Chesterfield MO 63005 800-899-1989 • www.cambridge-eng.com OPERATING CONDITIONS Operating Hours: 18 hrs/day 5 days/wk Design Temperature: 65° @ 0° Average Temperature: 65° Heating System: Cambridge Space Heaters 4 @ 1205 MBH Thru wall mounting ACTUAL FUEL USE for the 1997-98 heating season (7,231 Heating Degree Days @ 65°) 2.5 Btu / HDD / sq. ft. CALCULATED OPERATING COST for normal heating season (7,758 Heating De

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