Free Water Economisers for Taps and Shower Heads in Switzerland

Project type: Energy Efficiency , Water (Purification & Saving)

Project location: Switzerland

Project status: In operation, exclusive

Annual CO₂ reduction: 5,000 t

The more efficient consumption of hot water as part of the nationwide climate protection programme "Hot Water Conservation Switzerland" (“Warmwasserersparen Schweiz”) is reducing climate-damaging CO2 emissions, while simultaneously creating savings in energy and water costs.

The programme is open to all property managments (with ten households or more), hotels and asylums that are interested in installing hot water economisers on the taps and showers in their buildings. Only buildings with fossil-fuelled hot water heating systems (oil, petroleum gas) are eligible for the programme in order to guarantee the highest possible CO2 reduction (see eligibility requirements in the registration form to the right). In order to calculate the exact CO2 savings, the programme will be monitored during ten years after installation. Only correctly installed sets are included in the CO2 reduction calculations. The programme Hot Water Conservation Switzerland, which has been approved by the Swiss Federal Office for the Environment. Registration is still possible until mid-October 2022.


Sign up now (domestic)         Sign up now (hotels)


By participating in the programme, participants (property owners, hotels, asylums etc.) receive the latest generation of economisers free of cost. In return, participants agree to install the economisers (generally done by maintenance staff) and to possibly participate in a two-year random inspection monitoring programme. The costs of the programme will be financed through the revenues from CO2 certificates which will be sold to the foundation KliK. The end users benefit from reduced energy costs.


General information

The sub-programme "Free Water Economisers for Taps and Shower Heads" is installing water economisers in taps and shower heads in properties with fossil-fuelled hot water heating systems. (The sub-programme "Distribution of efficient Shower Heads for Customer and Employee Campaign" is installing cheaper shower heads in private households with fossil-fuelled or electric hot water heating systems.)

Economisers can be easily installed on water taps or shower heads. The maximum water flow rate is significantly reduced without affecting the user's comfort level, reducing energy and water costs as well as CO2 emissions. Despite these advantages, water economisers are still not installed in all buildings due to initial costs and fear of reduced comfort levels or technical problems. myclimate has recognised this problem and developed this climate protection programme. A larger-scale spread of water economisers can only be realised through a well-structured programme and additional financial support. 

myclimate would be delighted to present the programme in detail to anyone who is interested and to work together to enable tailor-made participation. We look forward to get in contact with you! 


*Possible savings

According to myclimate’s calculations installing water economisers in a household of four people (one shower and two taps) saves on average per year (incl. 25% burner, storage and pipe loss):

  • 150 swiss francs energy and water costs
  • 1,000 kWh energy
  • 100 liter heating oil
  • 16,000 liter warm water (37°C) in the shower
  • 7,000 liter hot water (56°C) in the sink
  • 0,25 t CO(equals driving 2000 km by car 130gCO2/km)
  • This corresponds to a hot water saving of 25-45%.


Installing a Aquaclic-shower head and a water economiser in the tap in a hotel room saves on average per year (incl. 25% burner, storage and pipe loss):

  • 70 swiss francs energy and water costs
  • 450 kWh energy
  • 45 liter heating oil
  • 10’000 liter warm water (37°C, 8000l in the shower and 2000l in the sink)
  • 0,1 t CO2
  • This corresponds to a hot water saving of 35-55%.


Where does the funding come from?

This carbon offset programme has been made possible thanks to funding from the KliK Foundation. Go to our Info page to learn how the funding mechanism works for mandatory carbon offsetting.

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