🚿 洗澡费用（水费 + 热水能耗）Shower Cost Calculator

使用说明与常见问题How-to & FAQ

「洗澡费用（水费 + 热水能耗）」是什么？What is the Shower Cost Calculator tool?

用水量 = 时长 × 流量；加热能耗 = 用水量 × 4.186 kJ/(kg·°C) × 温升 ÷ 热水器效率。合计每次、每月水费和能源费。本地处理。Water = duration × flow; heating energy = water × 4.186 kJ/(kg·°C) × temperature rise ÷ heater efficiency. Adds up water and energy cost per shower and per month. Processed locally.

如何使用「洗澡费用（水费 + 热水能耗）」？How do I use the Shower Cost Calculator tool?

在「洗澡费用（水费 + 热水能耗）」中，填写「时长（分钟）」、「流量 L/min」、「温升 °C」、「热水器效率 %」、「能源价格（每 kWh）」等参数，结果会随输入实时计算并显示在下方。In the Shower Cost Calculator: Fill in "Duration (minutes)", "Flow L/min", "Temperature rise °C", "Heater efficiency %", "Energy price (per kWh)"; results are recalculated instantly as you type.

怎么省？How to save?

低流量花洒（6 L/min）和缩短 2 分钟都能明显降低费用。A low-flow head (6 L/min) and two minutes less both cut the cost noticeably.

能举个计算实例吗？Can you show a worked example?

例如在「洗澡费用（水费 + 热水能耗）」中填 时长（分钟） = 10，流量 L/min = 9，温升 °C = 25，热水器效率 % = 90，能源价格（每 kWh） = 0.15，水价（每 m³） = 3，结果区显示：用水量：90 L；加热能耗：2.907 kWh；每次费用：0.71；每月费用：21.18For example, entering Duration (minutes) = 10, Flow L/min = 9, Temperature rise °C = 25, Heater efficiency % = 90, Energy price (per kWh) = 0.15, Water price (per m³) = 3 in the Shower Cost Calculator gives: Water used: 90 L; Heating energy: 2.907 kWh; Cost per shower: 0.71; Monthly cost: 21.18

哪些输入会被检查？Which inputs are validated?

「洗澡费用（水费 + 热水能耗）」会检查这些输入——「时长（分钟）」、「流量 L/min」：必须填写，须大于 0；「温升 °C」：必须填写；「热水器效率 %」、「能源价格（每 kWh）」、「水价（每 m³）」、「每月次数」：必须填写，不能为负数；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The Shower Cost Calculator checks its inputs — "Duration (minutes)", "Flow L/min": required, must be greater than 0; "Temperature rise °C": required; "Heater efficiency %", "Energy price (per kWh)", "Water price (per m³)", "Showers per month": required, cannot be negative; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.

有哪些选项可以调整？What options can I adjust?

「洗澡费用（水费 + 热水能耗）」的设置：「时长（分钟）」默认 10；「流量 L/min」默认 9；「温升 °C」默认 25；「热水器效率 %」默认 90；「能源价格（每 kWh）」默认 0.15；「水价（每 m³）」默认 3；「每月次数」默认 30。每次生成结果都按当前设置处理。Settings in the Shower Cost Calculator — "Duration (minutes)" default 10; "Flow L/min" default 9; "Temperature rise °C" default 25; "Heater efficiency %" default 90; "Energy price (per kWh)" default 0.15; "Water price (per m³)" default 3; "Showers per month" default 30. The result always uses the current settings.

「洗澡费用（水费 + 热水能耗）」免费吗？需要注册吗？Is the Shower Cost Calculator free? Do I need an account?

「洗澡费用（水费 + 热水能耗）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Shower Cost Calculator is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.