WELS Water Rating for efficient products

Feb 1, 2021 | Tips and Advice

The WELS water rating system for Water Efficiency

 

There is a system in Australia for rating the amount of water that is used on a particular fixture.

This is known as a Water Efficiency Labelling Scheme, or WELS Rating for short. It provides consumers with a guide when choosing a product. The stars indicate water efficiency so the more stars, the greater the water efficiency.

The water consumption or flow figures equals either the average water consumption per use (toilets, urinals etc.) or the average water flow per minute (taps, showers, etc.).

To give you a better understanding, the table below shows each star WELS Water Rating:

0 Stars = More than 16 litres / minute thus failing performance requirements
1 Star = More than 12 l/m, but not more than 16 l/m
2 Stars = More than 9 l/m, but not more than 12 l/m
3 Stars = More than 7.5 l/m, but not more than 9 l/m
4 Stars = More than 6 l/m, but not more than 7.5 l/m
5 Stars = More than 4.5 l/m, but not more than 6 l/m
6 Stars = 4.5 l/m or less

Anything 4 star WELS Water Rating or higher is considered best practice and will not only help to preserve our most important resource but will also significantly improve your bank balance.

Simply changing all the taps and shower heads in your home could save as much as $500.00 per year and tens of thousands of litres of water.

WELS Water Rating

 

Potential Water Saving

 

TAPS

Replacing an old inefficient tap that has a flow rate of 15L/min with a new:

  • 3-star tap that flows at 9L/min will save 11kL and $33 per tap each year on water bills
  • 6-star tap that flows at 4L/min will save 20kL and $60 per tap each year on water bills.

There will also be extra savings with hot water as less will in fact be heated. So depending on energy costs, households may also save an equivalent amount (or more) each year on energy bills because less water will be heated.

These figures are provided by the WELS website with the following assumptions: 
A tap runs for 5 minutes total per day, for tasks including handwashing, tooth brushing, rinsing dishes, rinsing fruit or vegetables, at an average water price of $2.99/kL (the national average price reported in the 2014–15 Australian Bureau of Statistics Water Account). Time the tap is running to fill a basin is not included.

 

SHOWERS

Replacing Shower Heads is potentially the biggest saver a household can invest in.

Every 1L/min reduction in flow  a typical family of four will save nearly 12,000 litres (12kL) of water and $35 each year.

For this family of four, replacing their old shower head that flows at 15L/min with a new:

  • 3-star shower that flows at 9L/min will save 70kL and $210 each year on their water bills
  • 4-star shower that flows at 6L/min will save 105kL and $315 per year on their water bills.

Depending on energy costs, they may also save an equivalent amount (or more) each year on energy bills because less water will be heated for showers.

These figures are provided by the WELS website with the following assumptions: 
each family member showers for the average 8 minutes per day, at an average water price of $2.99/kL (the national average price reported in the 2014–15 Australian Bureau of Statistics Water Account).

 

TOILETS

Every litre of water that a toilet does not use in an average flush, will save a typical family of four nearly 6kL and $17.50 each year in water supply charges.

If this family replaces an old single-flush toilet with a flush volume of 12L with a new 4-star toilet with an average flush volume of 3.5L, this will save 50kL and $148 each year on their water bills.

These figures are provided by the WELS website with the following assumptions: 
each family member flushes 4 times per day, at an average water price of $2.99/kL (the national average price reported in the 2014–15 Australian Bureau of Statistics Water Account).

MYTAP has a wide range of products with a WELS Water Rating between 3-star and 6-star the majority are above 4-star.
Save $100s on water rates and your energy bills for double savings!

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