The cost of procurement and installation for the systems are as follows ($): Electric furnace and air conditioning: 9500.00 High-efficiency propane furnace and air conditioning: 11,300.00 Ground Loop Heatpump (GLHP) System: 22,800.00 The estimated annual operating costs are as follows ($): Electric furnace and air conditioning: 2,750.00 High-efficiency propane furnace and air conditioning: 2,170.00 GLHP System: 980.00 A house owner wants to install High-efficiency propane furnace and air conditioning for their heating/cooling needs as they think preferable. You are offering them to go with Ground Loop Heatpump System. A bank finance can be arranged @ 4.5% interest with an amortization period of 25 years. The installment should be paid on a monthly basis. Calculate annual cash-flow saving with the GLHP in $. none of these 969 388 883 422 756 502