Hot Water Consumption vs. Occupants
Consumption of hot water per person or occupant.
Flow rate and temperature are the primary factors to be determined in the hydraulic and thermal design of water-heating and piping systems.
The table below indicates hot water consumption per occupant or person in typical buildings:
| Type of building | Consumption per occupant | Peak demand per occupant | Storage per occupant | |||
|---|---|---|---|---|---|---|
| liter/day | gal/day | liter/hr | gal/hr | liter | gal | |
| Factories (no process) | 22 - 45 | 5 - 10 | 9 | 2 | 5 | 1 |
| Hospitals, general | 160 | 35 | 30 | 7 | 27 | 6 |
| Hospitals, mental | 110 | 25 | 22 | 5 | 27 | 6 |
| Hostels | 90 | 20 | 45 | 10 | 30 | 7 |
| Hotels | 90 - 160 | 20 - 35 | 45 | 10 | 30 | 7 |
| Houses and flats | 90 - 160 | 20 - 35 | 45 | 10 | 30 | 7 |
| Offices | 22 | 5 | 9 | 2 | 5 | 1 |
| Schools, boarding | 115 | 25 | 20 | 4 | 25 | 5 |
| Schools, day | 15 | 3 | 9 | 2 | 5 | 1 |
Related Topics
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Water Systems
Design of hot and cold water service and utility systems with properties, capacities, sizing of pipe lines and more.
Related Documents
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Water Supply Systems - Online Design Application
Free online tool for designing water supply systems in buildings.
