14. What is the advantage of installing your water heater outside the building? Click or tap here to enter text. 15. What is the difference between standard equipment and working supplies? Standard equipment does not need to be replaced as often as working supplies 16. What general rule can be used to determine how much retail an owner/manager should keep in stock? Click or tap here to enter text. 17. Where should retail be kept? Click or tap here to enter text. 18. Private label a. What are private-label products? Click or tap here to enter text. b. What can you and your staff members do to increase sales of private-label products? i. Click or tap here to enter text. ii. Click or tap here to enter text. iii. Click or tap here to enter text