Shower pump/combi boiler

[toptotty11177]

Hi, I currently have a combi boiler and a mixer shower. The shower is a bit rubbish in regards to the flow (unless of course I am running the cold!) as is the general hot water.
I am about to have my bathroom refitted and would have liked a more powerful shower. I was about to buy a pump then saw something that said you cant have a pump with a combi boiler. I looked a bit further into it and that would seem to be the case.
So, my question is, what can I do, if anything, to get a more powerful shower? I don't want to spend hundreds on doing this so if its going to cost more than a pump then I probably wont bother.
Any advice would be gratefully received
Cheers
toptotty11177

 

[ianniann]

It isn't strictly the case, but typical shower pumps are not designed to operate off the "mains" pressure hot flower that you get from a combi.

In any case, your problem is most likely not linked to the flow as such, but to the ability of the boiler to heat the water fast enough, so a pump wouldn't help. How powerful is the boiler?

You do say that even the hot water taps run slow, which does sound like you might have a flow problem. Is perhaps the hot water flow through the boiler stopped down? Can you compare the hot water and cold water flows from a fully open tap, as in how many litres you can get in a minute? Are all the hot water taps equally slow?

 

[toptotty11177]

It isn't strictly the case, but typical shower pumps are not designed to operate off the "mains" pressure hot flower that you get from a combi.

In any case, your problem is most likely not linked to the flow as such, but to the ability of the boiler to heat the water fast enough, so a pump wouldn't help. How powerful is the boiler?

You do say that even the hot water taps run slow, which does sound like you might have a flow problem. Is perhaps the hot water flow through the boiler stopped down? Can you compare the hot water and cold water flows from a fully open tap, as in how many litres you can get in a minute? Are all the hot water taps equally slow?

How would I find out if the hot water flow is stopped down?
Yes, all the hot taps in the house run very slow.
I just timed it now and the hot gives me about 4-4.5 litres per minute and the cold gives 9-10 litres per minute.