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31. 7. 202318:25
We reduce CO2. CCS

10 effective energy-saving measures for saving water and reducing CO2 emissions

1. Shower more often instead of bathing

A soothing bath is a beautiful thing. There is no doubt about it. However, if you want to save energy and therefore money, you should take a closer look at the numbers here:

  • A normal bathtub has a volume of 150 to 200 liters
  • We use an average of 70 liters when showering

If you bathe less often, you will avoid up to 115 kg of CO 2 per year in a 2-person household. In addition, there is up to 105 euros less for water and heating. The information refers to a household with decentralized water heating (usually an instantaneous water heater). In the case of central hot water preparation, the exact savings potential may deviate from this.

2. Save water when showering

With a normal shower head, you use approximately 12 to 15 liters of water per minute. Economical shower heads, on the other hand, allow only 6 to 7 liters. This allows you to immediately reduce consumption, costs and CO emissions 2 . The temperature of the water is also important. It is true: the colder the water, the greater the savings. The length of the shower is also important. If you shower for more than 10 minutes a day, then the saving effect compared to a full bath is zero.

3. Save tap water

You save hot water not only when showering and bathing. Even when washing at the sink, you can quickly achieve savings with inexpensive measures.

Aerator and water volume regulator. Inconspicuous helpers are attached directly to the faucet and can be there save up to half of water consumption . Aerators (also called aerators or aerators) optimize the flow of water from the faucet and add air to the water. This reduces consumption while maintaining the comfort of cleaning .

Simple helpers are available in different versions , for example in hardware stores:

  • as a simple mixing nozzle,
  • with ball joint or intermediate hose and
  • with a switch for different amounts of water.

However, water savers are not always suitable for instantaneous water heaters and pressureless storage tanks. An alternative there can be so-called water volume regulators: They reduce the water pressure before the water jet emerges. But even here restrictions may apply for pressureless boilers or instantaneous water heaters.

4. Clean laundry efficiently

When washing clothes, on average approx 12 percent of household water . For costs and CO 2 the energy consumption for heating water for washing is decisive. Electricity is usually used here, unless the washing machine is powered by an extra hot water connection.

How save money on laundry :

  • Washing machines should usually be fully loaded.
  • Thanks to modern cold detergents, lower temperatures are usually sufficient.
  • Ecological programs have a shorter washing time and lower water consumption.
  • Even working without prewashing is often not a loss of comfort, but it saves a lot of water and energy and protects the clothes.
  • If the laundry is heavily soiled, wash longer instead of hotter. A single hot wash after several regular washes will help fight stubborn dirt and bacteria. Much of the laundry can also be pre-treated with bile soap.
  • Replace old devices and look for a suitable replacement. For water and electricity guzzlers, it pays to buy a new one before the old one breaks down. But only if you pay attention to a good energy efficiency class.

5. Optimize fittings

You are still using mixing faucet or two-handle faucet for tap and you have to laboriously regulate the water temperature every time? Especially when showering, the decision between comfort and energy saving is unpleasant: either you keep the water running, or you have to adjust the temperature again after turning it off and foaming.

At single-lever batteries or single-lever batteries the flow of hot water at the sink can be turned off with the handle. It is even better if the temperature is already preset, such as with a fully electronic instantaneous water heater, which can be set to a precise degree.

It is a cost-effective alternative to pressure water heaters shower stop . The water flow is stopped by a button on the shower head or a small lever.

6. Check seals and insulation

7. Optimally regulate the water temperature

8. Turn off the small storage tank and save water

9. Ensure efficient circulation of hot water

10. Let the sun warm you, geothermal heat

(AI, co2online)