In the domestic segment, various appliances and processes consume great amount of water and, consequently, energy. In this context, the main aim of this study is to analyse the impact of water temperature, flow and bath duration in water and energy consumptions. The impact on CO₂ emissions and a simple costs analysis were also carried out. It included a monitoring plan of 197 baths taken under different scenarios of water temperature and flow. It was concluded that increasing water consumption leads to an increase on energy consumption and that both resources consumptions increase with bath duration. Bath temperature had influence not only on energy consumption, as expected, but also in water consumption, what may be explained by the user's satisfaction during baths with higher temperatures. The use of a flow reducing valve is not a guarantee of water saving which can also be related to the user's satisfaction patterns, given that the introduction of a flow reducing valve can lead to a bath duration increase. In what concerns to the CO₂ emissions, it was concluded, as expected, that higher values are obtained for baths with higher temperatures given their relation with higher energy consumptions patterns. A simple costs analysis revealed that having flow reducing valves, with a bath temperature of 75 °C, increased the costs with electricity and water in 119% and 32%, respectively, when compared with a temperature of 60 °C.

在家用领域，各种设备和过程消耗大量的水，因此消耗能源。在这种情况下，本研究的主要目的是分析水温，流量和洗浴时间对水和能源消耗的影响。对CO ₂的影响还进行了排放和简单的成本分析。它包括一项在不同水温和流量情况下采取的197个浴池的监测计划。结论是，水消耗量的增加导致能耗的增加，并且两种资源的消耗量都随着浴时间的延长而增加。浴温不仅影响预期的能量消耗，而且还影响水的消耗，这可以用较高温度的浴对使用者的满意度来解释。使用减水阀不能保证节水，这也可能与用户的满意度有关，因为减水阀的使用会导致洗浴时间的增加。关于CO _2的问题正如预期的那样，由于排放量与较高的能耗模式有关，因此得出的结论是，温度较高的浴池可获得较高的值。一个简单的成本分析表明，与温度为60°C相比，拥有流量降低阀，浴温为75°C的水和电的成本分别增加了119％和32％。