act8.4

To support sustainability, decrease environmental impact and to save money a business is considering installing low flush toilets in all of its bathrooms and air hand driers to replace paper towel dispensers. Purchasing new toilets for the entire business will cost $22,000. Plumbers will fit the toilets at a cost of $9,500. It is estimated that this will save the business $16,000 in water consumption fees. Nine hand driers will cost $1,500 each. The cost of employing electricians to install the hand driers will come to $4,400. As the business will no longer have to purchase paper towels, they will save $7,300 per year. They also estimate that they will save $1,000 per year in cleaning costs, as the bathrooms will take less time to clean and bins will need to be emptied less frequently. The business will incur additional electricity costs of $1,700 per year however. Calculate the combined payback period for the installation of low flush toilets and air hand driers.