A mechanical engineer must recommend a new heating system to a commercial building owner. The owner intends to sell the building in 15 years. A gas fired furnace option has a design life of 5 years, an initial cost of $13,000, a replacement cost of $7,000 and annual operating costs of $3,500, but adds no value to the building when sold. A geothermal heat pump system has a design life of 10 years, an initial cost of $18,000, a replacement cost of $9,000, annual operating costs of $2,500, and increases the value of the building by $6,000, when it is sold at the end of year 15. Determine the PW of costs for the option the engineer should recommend at an interest rate of 7.5%. Express your answer in $ to the nearest $100.

Essentials Of Investments
11th Edition
ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Chapter1: Investments: Background And Issues
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A mechanical engineer must recommend a new heating system to a commercial building owner. The
owner intends to sell the building in 15 years. A gas fired furnace option has a design life of 5 years,
an initial cost of $13,000, a replacement cost of $7,000 and annual operating costs of $3,500, but
adds no value to the building when sold. A geothermal heat pump system has a design life of 10
years, an initial cost of $18,000, a replacement cost of $9,000, annual operating costs of $2,500, and
increases the value of the building by $6,000, when it is sold at the end of year 15. Determine the
PW of costs for the option the engineer should recommend at an interest rate of 7.5%. Express your
answer in $ to the nearest $100.
Transcribed Image Text:A mechanical engineer must recommend a new heating system to a commercial building owner. The owner intends to sell the building in 15 years. A gas fired furnace option has a design life of 5 years, an initial cost of $13,000, a replacement cost of $7,000 and annual operating costs of $3,500, but adds no value to the building when sold. A geothermal heat pump system has a design life of 10 years, an initial cost of $18,000, a replacement cost of $9,000, annual operating costs of $2,500, and increases the value of the building by $6,000, when it is sold at the end of year 15. Determine the PW of costs for the option the engineer should recommend at an interest rate of 7.5%. Express your answer in $ to the nearest $100.
Expert Solution
Step 1
The present value method is known as the discounting technique, in which the current value of an item is determined as a discounted rate of return over a certain period of time.
 
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