Question

Supply systems must assure an adequacy of hot and cold water. An average rule-of-thumb design for hot water for resident usage (at 110 degrees Fahrenheit) is to provide ____________________ in addition to kitchen and laundry use.

a) 1.5 gallons per minute
b) 2.5 gallons per minute
c) 3.5 gallons per minute
d) 4.5 gallons per minute

Answer 1

In hot water supply system design, the guideline for resident usage at 110 degrees Fahrenheit is to provide 2.5 gallons per minute, excluding kitchen and laundry requirements.

Step-by-step explanation:

When designing supply systems that ensure an adequate supply of hot and cold water, the rule-of-thumb design for hot water for resident usage, set at 110 degrees Fahrenheit, is to provide 2.5 gallons per minute (gpm) for individual usage. This is in addition to what is needed for kitchen and laundry use. It's important to take into account the various uses of water within a household, including toilet flushing, showering, and appliance usage, when calculating hot water needs. For instance, in a U.S. household, total indoor water use has decreased due to more efficient appliances and fixtures, with a typical person using approximately 100 gallons per day.