Power Shower with Worcester Combi boiler

[robertmatthewman]

I am installing a shower room upstairs. I already have a downstairs bathroom with a thermostatic shower, running off a Worcester 28 Combi boiler.

I am fitting an electric shower upstairs, but I also have a multihead shower unit which I would like to put opposite.

The large unit could run off the combi boiler, but I have asked whether I could increase the pressure using a separate pump and have been told by a plumbing expert that this is possible. What pump should I use. I will install this under the floor boards. Should this be a dual (hot and cold) feed pump.

Does anyone know the make and model number of a suitable pump?

 

[seco services]

you can't put a pump on a combi boiler.
it's illegal to pump mains water

 

[JPC]

even if you could...(but you cant) the combi would not heat the water up enough