King’s College London

King’s College London2019-06-05T08:26:42+00:00

Project Description

King’s College London

The Great Hall

12 Propelair toilets have been installed in washrooms serving the Great Hall, Maughan Library and Virginia Wolf building at King’s College London’s Strand Campus. The Great Hall is used for a variety of purposes and the washrooms are heavily used on a daily basis. Propelair’s robust design is well-suited to high-usage areas, and the new toilets have provided the University with substantial environmental, financial and hygiene benefits.

“Excellent initiative! Every step towards a more ecological KCL is
worth supporting!”

“Great toilets! It’s important to save water; thanks for being
environmentally aware. Thumbs up.”

“Great idea – it’s very practical and ecological. I hope you put this
system in all the toilets!!”


Metered Water Charge

Flushes per Day

Previous Flush Volume
7.5 litres

Annual Savings

180,000 litres


2.4 years

(All figures represent a single Propelair unit)


  • The installation of 12 Propelair toilets will achieve a 80% water saving
  • Annually this will save 2,160,000 litres of water (building utilisation = 300 days)
  • An annual carbon reduction of 2,230 kg


  • 2,160,000 litres of water saving = £4,644 reduction in water bills annually
  • Payback achieved in 2.4 years


  • Propelair’s unique displaced air technology efficiently removes all waste with one flush
  • Reduces airborne germs by up to 95%
  • Removes up to 99.9% of waterborne contaminants
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