Hot Water Consumption per Occupant
Consumption of hot water per person or occupant.
The table below can be used as an indication of hot water consumption per occupant or person in common types of buildings:
| Fixture | Flow rate | Minimum Supply Pressure | ||
| (gpm) | (l/min) | (psi) | (kPa) | |
| Aspirator | 2,5 | 10 | 8 | 55 |
| Bathtub faucet | 5 | 19 | 8 | 55 |
| Bidet | 2 | 7,5 | 4 | 28 |
| Combination fixture | 4 | 15 | 8 | 55 |
| Dishwashing machine | 4 | 15 | 8 | 55 |
| Drinking fountain jet | 0,75 | 3 | 8 | 55 |
| Laundry faucet 1/2″ | 5 | 19 | 8 | 55 |
| Laundry machine | 4 | 15 | 8 | 55 |
| Lavatory faucet, ordinary | 2 | 7,5 | 8 | 55 |
| Lavatory faucet, self closing | 2,5 | 10 | 8 | 55 |
| Shower head | 5 | 19 | 8 | 55 |
| Shower, temperature controlled | 3 | 10 | 20 | 138 |
| Sink 3/8″, 1/2″ | 4,5 | 17 | 8 | 55 |
| Sink 3/4″ | 6 | 23 | 8 | 55 |
| Urinal flush valve | 15 | 56 | 15 | 110 |
| Water closet with flush valve | 35 | 132 | 25 | 170 |
| Water closet with gravity tank | 2,5 | 10 | 8 | 55 |
| Water closet with close coupled tank, ballcock | 3 | 11 | 8 | 55 |