Showers

[Magrah]

Thanks All

Quite frankly i'm none the wiser. I can't run a thermostatic shower, tried putting the hot water on in the kitchen and the pressure is 'pants' upstairs. As above you are trying to feed hot water to 3 bathrooms and a cloak room on 15mm. No matter what pressure or Kw combi it will not cope.

I am looking at a restricted board which will only allow 2 showers on at a time (I know this is more electrics) or asking UK Power Networks to fit a 3 phase supply but that is going to be expensive.

Any other idea would be gratefully received.

Thanks

 

[Magrah]

Thanks All

I spoke to UK Power Networks to explore the option of a 3 phase supply. Around £20k plus extra's to run the new cable from the main outside which would allow to run the whole of London on my supply!

So it looks like a thermostatic shower is the best option. All the cold water runs from the tank inc 2 bathrooms and cloakroom. The only things that runs off the mains is the kitchen. So in theory that should reduce the 'drag' on the cold mains.

Can anybody recommend a good thermostatic shower that will do the job? I have always had electric, in this house and the old one! Was thinking

Mira Form Rear-Fed Exposed Chrome Thermostatic Dual Outlet Mixer Shower​

 

[denso13]

If cistern fed I'd go for a power shower, pumped hot and cold.

 

[Magrah]

It fed by mains cold and combi hot. The cold can run through a pump like the 2 electric showers but I think that will effect the balance between hot and cold.

 

[denso13]

Sorry, I'm getting confused. Do you want to fit one fed from the mains, or storage?

 

[Magrah]

No probs, no hot water storage tank, we have a cold loft tank which feeds all the cold water in the house bar the kitchen (which runs off the mains), we have a combi that supplies all the hot water to the house (42kw WB). We have a pump that feeds the 2 electric showers from the tank. This is so there is not loss of pressure to the electric showers no matter who runs a cold or hot tap. Looking to get a mixer which will run from the main and combi.

Not ideal but seems the only way forward. Was going to run three electric showers off the pump that would mean no loss of pressure on all three (the pump which runs off the tank can run three electric showers together but due to load demands that's not possible).

 

[foxhole]

Thanks All

Quite frankly i'm none the wiser. I can't run a thermostatic shower, tried putting the hot water on in the kitchen and the pressure is 'pants' upstairs. As above you are trying to feed hot water to 3 bathrooms and a cloak room on 15mm. No matter what pressure or Kw combi it will not cope.

I am looking at a restricted board which will only allow 2 showers on at a time (I know this is more electrics) or asking UK Power Networks to fit a 3 phase supply but that is going to be expensive.

Any other idea would be gratefully received.

Thanks

So how did you test the hot pressure ?

 

[Magrah]

Just turning a couple of taps on?

 

[denso13]

No probs, no hot water storage tank, we have a cold loft tank which feeds all the cold water in the house bar the kitchen (which runs off the mains), we have a combi that supplies all the hot water to the house (42kw WB). We have a pump that feeds the 2 electric showers from the tank. This is so there is not loss of pressure to the electric showers no matter who runs a cold or hot tap. Looking to get a mixer which will run from the main and combi.

Not ideal but seems the only way forward. Was going to run three electric showers off the pump that would mean no loss of pressure on all three (the pump which runs off the tank can run three electric showers together but due to load demands that's not possible).

The Mira should be ok but it has a deluge head which will need a pretty decent water flow.

A typical bar mixer will do the job as well.

 

[Magrah]

That's a really good point, thanks.