Savings Calculator

Average External Temprature

  • °


  • %

Condensation Created

(Litres per hour)

Number of Toilets

Average number of flushes per day

Cost per litre of water

(Commercial rate, in local currency)

Litres of water saved per year

Cost saving per year

How it works

Frequently Asked Questions

  • Certification & Accreditation
  • Environment & Sustainability
  • Installation
  • LEED
  • Operation & Technology
  • Product
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Read More What is an Encore cistern?

Encore is the world’s most environmentally friendly toilet cistern. It uses the condensation from air conditioning units to flush toilets. Until now, this free, sustainable source of water has been drained to waste.

Read More How does the Encore cistern work?

The Encore cistern works in exactly the same way as a traditional cistern with the exception that it has an extra filling connection to allow a separate water source to be introduced (from the air conditioning unit). Encore holds 18 litres of water, which is three times more than a conventional cistern thanks to its dual-chamber design. Despite its larger water holding capacity, it still fits the same tight service voids like a standard model. The bottom chamber holds 6 litres, which is supplied from the mains pipe. The upper 12 litre chamber is filled with air conditioning condensate. When the toilet is flushed, the lower chamber is emptied and then refilled with condensate from the upper chamber. If there are multiple flushes in a short period of time, the cistern is filled in the conventional way from the mains fed pipe, ensuring the correct amount of water for a full toilet flush is always available. If the toilet is not used for a while, surplus condensate is simply drained away. The flush volume can be adjusted to vary the amount of water used from 6 to 1.5 litres.

Read More Which BREEAM credits and LEED points does Encore let me claim?

Two additional credits can be claimed under BREEAM's WAT 01 category. Two additional points can be claimed under LEED's Water Efficiency category. Choosing Encore means for the first time that BREEAM credits and LEED points can be claimed for toilet cisterns.

Read More Are installation instructions available?

Full fitting instructions can be downloaded here. Below is a video demonstrating how to install Encore cisterns.

Read More Can I download a detailed product specification sheet?

Yes. A product data sheet is available here.

Read More How will an Encore cistern affect my company's corporate social responsibility?

It will demonstrate your commitment to helping reduce the amount of water used – one of the world’s most precious and diminishing natural resources. Traditional construction methods are carbon intensive and do not make best use of sustainable water supplies. By installing an Encore cistern, it shows a business is in touch with wider, sustainable global issues, is committed to make a difference through innovating and is a responsible organisation playing its part to help protect the planet.

Read More Is electricity used to pump the condensate or to flush the toilet?

No electricity is required to operate an Encore cistern so only a plumber is required to install it. Instead gravity feeds the condensate water into the cistern.

Read More Why is saving water so important?

There is a global water shortage that unless addressed by introducing conservation methods such as Encore, will soon reach a critical point. Reusing unused, sustainable water supplies - like Encore does by using previously wasted air conditioning condensate – is crucial. Over the next 40 years, the global population is expected to increase from six billion to an estimated nine billion, yet the world’s water supply is constant. Only 3 percent of the global water supply is fresh; the majority of it is locked in ice or stored deep in the earth, making its extraction very expensive. The remaining 97 percent is found in the oceans and is too salty for human consumption, irrigation, and industrial uses. Water is one of the many limited natural resources heavily impacted by the built environment. By applying sustainable equipment like Encore, we lessen the impact on the planet and people.

Read More Where does the water for a conventional cistern come from?

Most commonly, it comes from the mains drinking water connections. There are a number of other technologies which use grey water or rain water to flush toilet cisterns but these are considerably more expensive, require additional plumbing infrastructure and also use electricity to pump water around a building.

Read More Is the Encore cistern more environmentally friendly than a conventional cistern?

Encore is the world’s most environmentally friendly cistern. No other cistern recycles the air conditioning condensate waste product to flush a toilet. Conventional cisterns use mains drinking water.

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