توفير الطاقة والمياه في الحمام

Duravit 3-jet 110 MinusFlow hand shower, UV0652016010 (9 l/min.)

With a Duravit MinusFlow hand shower, a family of four can save up to EUR 1,079.19 per year compared to a conventional hand shower, as well as up to 834.21 kg CO2. *

* The calculation is based on the following assumptions:

• Note: The savings shown result from the reduced water consumption of the Duravit MinusFlow hand shower (9 l/min.) compared to a standard hand shower (approx. 15 l/min.). Energy savings are also generated through the reduced consumption of hot water, with less energy needed to heat the water.
• Each family takes a daily seven-minute shower with an average water temperature of 100.4 °F (38 °C).
• Type of energy used: Electricity / Electricity price: EUR 0.37 per kWh
  Water output temperature: 50°F (10°C) / the cost of heating 1 liter of water from the output temperature to 100.4 °F (38 °C): EUR 0.0120176** / water price: EUR 0.00563 per liter / CO2 emissions factor 420 g per kWh / MinusFlow water consumption per minute: 9 l / water consumption of conventional hand shower per minute: 15 l
• ** EUR 0.0120176 = 50.4 (28) (temperature difference: 100.4 °F (38 °C) – 50 °F (10 °C)) * 0.00116 (kilowatt hours necessary to heat 1 liter of water by 0.56 °F (1 °C)) * 0.37 (electricity price in EUR per kWh)
• The stated saving of EUR 1,079.19 per year referred to is made up of (i) saving in water consumption of EUR 344.29 (= 6 (water consumption difference of 15 – 9 liters) * 7 (duration of shower per person in minutes) * 4 (number of persons in household) * 7 (showering frequency per person per week) * 52 (number of weeks) * 0.00563 (water price per liter in EUR)) and (ii) saving in energy costs of EUR 734.90 (=6 (water consumption difference 15 – 9 liters) * 7 (duration of shower per person in minutes) * 4 (number of persons in household) * 7 (showering frequency per person per week) * 52 (number of weeks) * 50.4 (28) (temperature difference: 100.4 °F (38 °C) – 50 °F (10 °C) * 0.00116 (kilowatt hours necessary to heat 1 liter of water by 1 °C)) * 0.37 (electricity price in EUR per kWh)).
• The CO2 saving referred to is based on 1,986.22 kWh of energy saved at a CO2 emissions factor of 420g per kWh.

Duravit 1-jet 230 MinusFlow showerhead, UV0662017010 (9 l/min.)

With a Duravit MinusFlow showerhead, a family of four can save up to EUR 2,697.97 per year compared to a conventional hand shower, as well as up to 2,085.53 kg CO2 .*

* The calculation is based on the following assumptions:

• Note: The savings shown result from the reduced water consumption of the Duravit MinusFlow showerhead (9 l/min.) compared to a standard hand shower (approx. 24 l/min.). Energy savings are also generated through the reduced consumption of hot water, with less energy needed to heat the water.
• Each family takes a daily seven-minute shower with an average water temperature of 100.4 °F (38 °C).
• Type of energy used: Electricity / Electricity price: EUR 0.37 per kWh
• Water output temperature: 50°F (10°C) / the cost of heating 1 liter of water from the output temperature to 100.4 °F (38 °C): EUR 0.0120176** / water price: EUR 0.00563 per liter / CO2 emissions factor 420 g per kWh / MinusFlow water consumption per minute: 9 l / water consumption of conventional showerhead per minute: 24 l
• ** EUR 0.0120176 = 50.4 (28) (temperature difference: 100.4 °F (38 °C) – 50 °F (10 °C)) * 0.00116 (kilowatt hours necessary to heat 1 liter of water by 0.56 °F (1 °C)) * 0.37 (electricity price in EUR per kWh)
• The stated saving of EUR 2,697.97 per year is made up of (i) saving in water consumption of EUR 860.71 (= 15 (water consumption difference of 24 – 9 liters) * 7 (duration of shower per person in minutes) * 4 (number of persons in household) * 7 (showering frequency per person per week) * 52 (number of weeks) * 0.00563 (water price per liter in EUR)) and (ii) saving in energy costs of EUR 1.837.25 (=15 (water consumption difference 24 – 9 liters) * 7 (duration of shower per person in minutes) * 4 (number of persons in household) * 7 (showering frequency per person per week) * 52 (number of weeks) * 50.4 (28) (temperature difference: 100.4 °F (38 °C) – 50 °F (10 °C) * 0.00116 (kilowatt hours necessary to heat 1 liter of water by 1 °C)) * 0.37 (electricity price in EUR per kWh)).
• The CO2 saving referred to is based on 4,965.54 kWh of energy saved at a CO2 emissions factor of 420g per kWh.

Duravit No.1 M MinusFlow single lever basin mixer, N11022001010 (3.5 l/min.)

With a Duravit MinusFlow single lever basin mixer, a family of four can save up to EUR 192.66 per year compared to a conventional hand shower, as well as up to 143.44 kg of CO2.*

* The calculation is based on the following assumptions:

• Note: The savings shown result from the reduced water consumption of the Duravit MinusFlow single lever basin mixer (3.5 l/min.) compared to a standard single lever basin mixer (approx. 5.5 l/min.). Energy savings are also generated through the reduced consumption of hot water, with less energy needed to heat the water.
• Each family member uses the single lever basin mixer 10.9 times a day for 22.4 seconds each time, at an average water temperature of 95 °F (35 °C).
• Type of energy used: Electricity / Electricity price: EUR 0.37 per kWh / water output temperature: 50 °F (10 °C) / the cost of heating 1 liter of water from the output temperature to 95 °F (35 °C): EUR 0.01073** / water price: EUR 0.00563 per liter / CO2 emissions factor 420 g per kWh / MinusFlow water consumption per minute: 3.5 l / water consumption of a conventional single lever basin mixer per minute: 5.5 l
• ** EUR 0.01073 = 45 (25) (temperature difference: 95 °F (35 °C) – 50 °F (10 °C)) * 0.00116 (kilowatt hours necessary to heat 1 liter of water by 0.56 °F (1 °C)) * 0.37 (electricity price in EUR per kWh)
• The stated saving of EUR 192.66 per year to is made up of (i) saving in water consumption of EUR 66.30 (= 2 (water consumption difference of 5.5 – 3.5 liters) * 0.37 (duration of handwashing per person in minutes) * 4 (number of persons in household) * 10.9 (handwashing frequency per person per day) * 365 (number of days in year) * 0.00563 (water price per liter in EUR)) and (ii) saving in energy costs of EUR 126.36 (=2 (water consumption difference 5.5 – 3.5 liters) * 0.37 (duration of handwashing per person in minutes) * 4 (number of persons in household) * 10.9 (handwashing frequency per person per day) * 365 (number of days) * 50.4 (25) (temperature difference: 100.4 °F (35 °C) – 50 °F (10 °C)) * 0.00116 (kilowatt hours necessary to heat 1 liter of water by 0.56 °F (1 °C)) * 0.37 (electricity price in EUR per kWh)).
• The CO2 saving referred to is based on 341.51 kWh of energy saved at a CO2 emissions factor of 420g per kWh.

Duravit Tulum single lever basin mixer M FreshStart, TU1021001010 (5.5 l/min.)

With a Duravit FreshStart single lever basin mixer, a family of four can save up to EUR 277.99 per year compared to a conventional hand shower, as well as up to 315.56 kg of CO2.*

* The calculation is based on the following assumptions:

• Note: The savings shown result from the reduced energy consumption of the Duravit FreshStart single lever basin mixer compared to a standard single lever basin mixer, through its cold-water default setting on the lever’s middle setting. This leads to cold water being used more frequently than hot, based on habitual user behavior.
• Each family member uses the single lever basin mixer 10.9 times a day for 22.4 seconds each time, at an average water temperature of 59 °F (15 °C).**
• ** In 80% of cases, 59°F (15 °C) is the weighted average temperature used in the middle setting of the lever on the FreshStart single lever basin mixer with a water output temperature of 50 °F (10 °C); a hot water temperature of 95 °F (35 °C) is used in 20% of cases.
• Type of energy used: Electricity / Electricity price: EUR 0.37 per kWh / water output temperature: 50 °F (10 °C) / the cost of heating 1 liter of water from the output temperature to 95 °F (35 °C): EUR 0.01073 ***/ the cost of heating 1 liter of water from the water output temperature to 59 °F (15 °C) (weighted average when using FreshStart): EUR 0.002146** / water price: EUR 0.00563 per liter / CO2 emissions factor 420 g per kWh /
• *** EUR 0.01073 = 45 (25) (temperature difference: 95 °F (35 °C) – 50 °F (10 °C)) * 0.00116 (kilowatt hours necessary to heat 1 liter of water by 0.56 °F (1 °C)) * 0.37 (electricity price in EUR per kWh)
• ** EUR 0.002146 = 9 (5) (temperature difference 59 °F (15 °C) – 50 °F (10 °C)) * 0.00116 (kilowatt hours necessary to heat 1 liter of water by 0.56 °F (1 °C)) * 0.37 (electricity price in EUR per kWh)
• The saving of EUR 277.99 per year referred to is made up of saving in energy costs of EUR 277.99 (=5.5 (water consumption in liters per minute) * 0.37 (duration of handwashing per person in minutes) * 4 (number of persons in household) * 10.9 (handwashing frequency per person per day) * 365 (number of days) * 41.4 (20) (temperature difference: 100.4 °F (35 °C) – 59 °F (15 °C) * 0.00116 (kilowatt hours necessary to heat 1 liter of water by 1 °C)) * 0.37 (electricity price in EUR per kWh)).
• The CO2 saving referred to is based on 751.33 kWh of energy saved at a CO2 emissions factor of 420g per kWh.

¹ Quelle: https://de.statista.com/statistik/daten/studie/6378/umfrage/wasserverbrauch-in-ausgewaehlten-laendern/

² Quelle: https://www1.wdr.de/fernsehen/aktuelle-stunde/strassenbaeume-giessen-100.html