New shower help - hansgrohe valves

deepam

Hi,

I have been hunting for hansgrohe shower valves and need help.

I ideally want a shower with high flow rate. Hence selected hansgrohe thermostatic valve 15742000. This valve is capable of delivering 59 litres/ min (flow rate). I plan to use a shut if valve with this (maybe 15972000).

Can anyone please recommend what shower head should I use? All one ones on hansgrohe website do not exceed 19 litres/ min flow rate. Any ideas please?

grumbler

Sorry  for asking the obvious, but do you have an unvented hot water cylinder for such high flow rate?

deepam

I have a pressurised system - one with a red cylinder next to my main water tank

BUFF

Have you any idea how much 59/l minute is (especially at pressure, it takes 3 bar for 59/l min)? That valve is designed to feed multiple outlets (e.g. an overhead + body jets) operating at one time. You will have to have a hot water system that can provide both the pressure & volume for it &, if you are metered, pay for the water usage.

A typical shower is ~10/l minute.

deepam

@BUFF I understand I may not have 59 litres/min flow in my system. But imagine if I have 40 litres flow rate, I want it delivered through the shower head/ single output. But since shower heads are limited, I cannot do that.

ashe

Might as well just get a karcher

grumbler

No, Karcher is just about 10 L/min.

BTW,  60 L is about 3 full buckets. @deepam, is your mains supply capable of filling 3 buckets/minute?

BUFF

deepam said:

But imagine if I have 40 litres flow rate, I want it delivered through the shower head/ single output. But since shower heads are limited, I cannot do that.

There is a reason for that - it is not considered a good idea/necessary to deliver 59/l min @3 bar through a single head ...

bengalknights

Ive never come across any shower heads that exceed 20l a minute and those ones are mainly hansgrohe/grohe/aqualisa

bris

59 litres a minute is impossible, its a typo,

In a domestic situation it was probably meant to say 9.

BUFF

bris said:

59 litres a minute is impossible, its a typo,

In a domestic situation it was probably meant to say 9.

It's not a typo, the other outlet from it is capable of 34/l minute @ 3 bar. It's designed for a shower system though not for just an individual head.
https://www.hansgrohe.co.uk/articledetail-showerselect-s-thermostatic-mixer-highflow-for-concealed-installation-for-multiple-outlets-15742000#techdata