Using energy efficient showerheads can save you money

Showerhead

Features

Benefits

Running cost comparison
Based on an average hot water tariff of 21 cents
Mains Pressure - Old type shower head  
2 seconds to fill a 1 litre jug = 30 litres per minute x 7 minute showers
  = 210 litres 50% split hot and cold
  = 105 litres hot water @ 0.08 kW of electricity to heat 1 litre
  = 8.4 kW x unit cost (21 cents)
  = $1.76 per shower
 
Energy Efficient shower head  
9 seconds to fill a 1 litre jug = 6.66 litres per minute x 7 minute shower
  = 46.66 litres 50% split hot and cold
  = 23.33 litres hot water @ 0.08 kW of electricity to heat 1 litre
  = 1.86 kW x 21 cents
  = 39 cents per shower
That is a saving of $41.10 per month ($1.37 per shower x 39 per month).
Low Pressure - Old type shower head  
16 seconds to fill a 1 litre jug = 3.75 litres per minute x 7 minute showers
  = 26.25 litres 50% split hot and cold
  = 13.12 litres hot water @ 0.08 kW of electricity to heat 1 litre
  = 1.05 kW x unit cost (21 cents)
  = 22 cents per shower
 
Energy Efficient shower head  
30 seconds to fill a 1 litre jug = 2 litres per minute x 7 minute shower
  = 14 litres 50% split hot and cold
  = 7 litres hot water @ 0.08 kW of electricity to heat 1 litre
  = 0.56 kW x 21 cents
  = 12 cents per shower
That is a saving of $3.00 per month (10 cents per shower x 30 per month).

As you can see from these examples the greater the water pressure the greater the saving when an energy efficient shower head is fitted.


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