760 Long Road Crossing Dr. • Chesterfield MO 63005 800-899-1989 • www.cambridge-eng.com 760 Long Road Crossing Dr. • Chesterfield MO 63005 800-899-1989 • www.cambridge-eng.com Operating Costs Based on 6,440 Heating Degree Days @ 65° $0.59/ft² Gas cost @ $1.00/therm $0.03/ft² Electric cost @ $0.08/kWh $0. 62/ft² Total cost Operating Costs Based on 6,440 Heating Degree Days @ 65° $0.28/ft² Gas cost @ $1.00/therm $0.01/ft² Elec

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