What are the benefits?
3 showers per day (7 minutes in length)
4 showers per day (7 minutes in length)
| Flow rate (l/min) | 5.5 | 6 | 7.5 | 8 | 9 | 12 | 15 |
| Amount of hot water for showers (kLitres) | 27.40 | 29.89 | 37.37 | 39.86 | 44.84 | 59.79 | 74.73 |
| Amount of energy to heat the water (kWh) | 1055 | 1151 | 1439 | 1535 | 1726 | 2302 | 2877 |
| Greenhouse gas emissions (kg) | 1118 | 1220 | 1525 | 1627 | 1830 | 2440 | 3050 |
| Greenhouse gas saved compared to 9l/min (kg) | -712 | -610 | -305 | -203 | 0 | 610 | 1220 |
| Greenhouse gas saved compared to 12l/min (kg) | -1322 | -1220 | -915 | -813 | -610 | 0 | 610 |
| Cost based on Off Peak 1 (5.83c/kWh) | $61.51 | $67.10 | $83.87 | $89.46 | $100.65 | $134.19 | $167.74 |
| Cost based on Off Peak 2 (9.24c/kWh) | $97.48 | $106.34 | $132.93 | $141.79 | $159.51 | $212.69 | $265.86 |
| Cost based on IBT 1 (13.97c/kWh) | $147.38 | $160.78 | $200.98 | $214.37 | $241.17 | $321.56 | $401.95 |
| Cost based on IBT 2 (20.845c/kWh) | $219.91 | $239.91 | $299.88 | $319.87 | $359.86 | $479.81 | $599.76 |
| Savings compared to 12l/min showerhead (Off Peak 2) | -$115.21 | -$106.34 | -$79.76 | -$70.90 | -$53.17 | $0.00 | $53.17 |
| Savings compared to 9l/min showerhead (Off Peak 2) | -$62.03 | -$53.17 | -$26.59 | -$17.72 | $0.00 | $53.17 | $106.34 |
4 showers per day (7 minutes in length)
| Flow rate (l/min) | 5.5 | 6 | 7.5 | 8 | 9 | 12 | 15 |
| Amount of hot water for showers (kLitres) | 36.54 | 39.86 | 49.82 | 53.14 | 59.79 | 79.72 | 99.65 |
| Amount of energy to heat the water (kWh) | 1407 | 1535 | 1918 | 2046 | 2302 | 3069 | 3836 |
| Greenhouse gas emissions (kg) | 1491 | 1627 | 2033 | 2169 | 2440 | 3253 | 4067 |
| Greenhouse gas saved compared to 9l/min (kg) | -949 | -813 | -407 | -271 | 0 | 813 | 1627 |
| Greenhouse gas saved compared to 12l/min (kg) | -1762 | -1627 | -1220 | -1084 | -813 | 0 | 813 |
| Cost based on Off Peak 1 (5.83c/kWh) | $82.01 | $89.46 | $111.83 | $119.28 | $134.19 | $178.93 | $223.66 |
| Cost based on Off Peak 2 (9.24c/kWh) | $129.97 | $141.79 | $177.24 | $189.05 | $212.69 | $283.58 | $354.48 |
| Cost based on IBT 1 (13.97c/kWh) | $196.51 | $214.37 | $267.97 | $285.83 | $321.56 | $428.75 | $535.94 |
| Cost based on IBT 2 (20.845c/kWh) | $293.22 | $319.87 | $399.84 | $426.50 | $479.81 | $639.75 | $799.68 |
| Savings compared to 12l/min showerhead (Off Peak 2) | -$153.61 | -$141.79 | -$106.34 | -$94.53 | -$70.90 | $0.00 | $70.90 |
| Savings compared to 9l/min showerhead (Off Peak 2) | -$82.71 | -$70.90 | -$35.45 | -$23.63 | $0.00 | $70.90 | $141.79 |