'Smart shower' slashes en­ergy bills by half

Alzira in­ven­tors cre­ate fit­ting that re-uses heat from waste hot wa­ter

Costa Levante News - - NEWS -

By Sa­man­tha Kett A SHOWER which uses lit­tle more than half the usual amount of en­ergy has been in­vented by three pri­mary school teach­ers in Alzira and could save the av­er­age fam­ily over €150 a year.

The ' Waste Wa­ter Heat Re­cov­ery Sys­tem' (WWHRS) de­vised by tu­tors at the Luis Suñer school in the Rib­era Alta district cap­i­tal means even peo­ple who leave the shower run­ning con­stantly or have to wait sev­eral min­utes be­fore it heats up will not be us­ing up any more gas or elec­tric­ity than if it was switched off.

The ' Pas­sive Shower', the brain­child of teach­ers César González, Ri­cardo Baena and Án­gel Almod­ó­var re-uses hot wa­ter run-off to heat up cold wa­ter in the sys­tem, mean­ing mains power is not needed to keep the tem­per­a­ture up.

Us­ing a hy­drother­mic shower tray to ' recycle' heat from hot wa­ter, the ' Pas­sive' model saves around 43% of en­ergy com­pared with main­stream show­ers.

The trio set up a start-up a decade ago, called Ce­rian Shower – tak­ing the first two let­ters of each of their names – but their pro­to­type turned out not to be work­able as it was ex- tremely dif­fi­cult to main­tain.

Since then, they have worked on sim­pli­fy­ing the plan and then patent­ing their in­ven­tion, and have re­cently un­failed a fin­ished prod­uct that does not re­quire drilling holes or mod­i­fy­ing the ex­ist­ing struc­ture of show­ers al­ready in­stalled in homes.

It is very light­weight, does not need any main­te­nance, lasts as long as the home it­self does, and house­hold­ers start to re­cover the cost of buy­ing it from its very first use, Ce­rian Shower ex­plains.

The cre­ators started ad­ver­tis­ing the ' Pas­sive Shower' in­ter­na­tion­ally a month ago and are con­sid­er­ing di­rect sales to in­di­vid­u­als as well as to DIY chains, plumbers' mer­chants and prop­erty de­vel­op­ers.

In fact, pri­vate home­own­ers who want to fit it may even be el­i­gi­ble for a grant to­wards the price, since gov­ern­ment and coun­cil fund­ing is of­ten avail­able for res­i­dents who want to im­prove en­ergy ef­fi­ciency in their homes. [email protected] fit and

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