Suitable shower for this setup ?.

[Al-Glasgow]

The bathroom setup has a high pressure hot feed from the combi boiler, but the bathroom has a tank fed cold water from the loft in a tenement building.

I dont fancy trying to supply the bathroom with mains cold.

What type of shower could be best suited to this setup ?.

Regards
Alan

 

[Al-Glasgow]

Would a Venturi shower work in this situ ?

Should i consider a restricting valve on the hot supply ?

Anyone ?

Al

 

[chrishutt]

Venturi showers are strictly for HP cold and LP hot, not vice versa.

A lot depends on the head available from the cold feed tank. In a tenement building this could easily be over 1.0 bar (10 metres height). The hot from the combi might have a similar pressure when flowing (even if the static pressure is much higher), so a typical thermostatic mixer valve might work fine.

 

[Al-Glasgow]

Thanks Chris,

The flat in question is on the ground floor of 3 levels (inc. ground).
The cold feed is easily stopped using a thumb over the outlet, I assumed the pressure was very low.

Should i measure the flow rates from both ?, would this help me to buy the correct thermostatic mixer ?.

Regards
Alan

 

[Agile]

For most showers to get them to operate properly it will be necessary to fit a pump on the cold to produce an equal pressure to the dynamic hot pressure at the shower.

Tony

 

[bster]

I'm sure some Mira Showers allow a multitude of unbalanced scenarios by omitting\fitting flow restricters to the high pressure C or H inlet.

 

[Al-Glasgow]

Ill check that out.

Cheers
Al