Cost savings from water efficiency devices

Our clever gadgets can help you save more than £100 of you are on a water meter. If you are not on a meter you can still save money because the equipment will help you reduce the amount of hot water you use.

Product	Water volume saved¹ (cubic metres per year)	Water cost saved² £ per year (for metered customers only)	Wastewater cost saved³ £ per year (for metered customers only)	Heating cost saved⁴ (£ per year)	TOTAL SAVINGS £ per year
Hippo	8.76	£7.13	£11.76	X	£18.89
Save-a-flush	4.38	£3.56	£5.88	X	£9.44
ShowerSave	10.95	£8.91	£14.70	£13.41	£37.02
Tap inserts	13.14	£10.69	£17.64	£16.09	£44.42
Self-audit	3.83	£3.12	£5.14	X	£8.26

1) Based on calculations supplied by UKWIR

2) Based on a m3 of water costing 0.814p and including a 10% non-return to sewer allowance

3) Based on the cost of treating m3 of wastewater £1.4922

4) Based on the British Gas standard price for use >2500kWh = £0.0336. The KWh per m3 of hot water is 36.45. The cost of heating 1m3 of water is therefore £1.2227

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