you can have a mixer shower but you cant have a boosted shower,

you simply cant have a shower pump attactched to a combi boiler

your pressure at the hot and cold taps should be good enough to have a mixer shower, shower pumps are only needed for tank and cylinder systems

depends on what your local pressure is like and if the combi is big enough to run the shower, check the manufacturers instruction for the shower and check what the liters per min required is,

also whats ur make of boiler and ill check the flow rate to see what it is, but sometime can also be down to the condition of your boiler/system cause if its full of crap and you have a plate exchanger your never gona get as good hot water at the higher flow rates than you would of a clean plate exchanger see this quite often at the moment.

he says i could run a hot feed up but it wont have good pressure

so all i need to do is run a hot water feed up into the shower?

I have a mixer shower on a combi boiler. Depends what your presure is like to be honest. Mine does the job, no power shower mind. Cranked the hot water heat on full on use some cold water.

does he know you have a combi?

you cant boost a combis hot water because the boiler its self heats the water

if you have a tank full of hot water you can empty it as quick as you like and it will still be hot as its already been heated

if you have cold water and pull it through the boiler at over 2 bar it isnt going to get warm at all because it wont be in the boiler for long enough to heat up

my mate who does bathrooms said i need to install a pump with a hot and cold feed up into the shower

you cant have a pumped shower on a combi boiler, you can have a mixer, no pump though

combi

our pump was £350 and the mixer was £150 no cost for fitting obviously

do you have a combi boiler or a hot water cylinder?

100+ for the pump, no idea on the fitting, depends on what needs done.

not sure on its actual name

but its a pump that comes off the boiler then goes up into the shower so i can get a proper mixer shower

how much should i be looking at for supply and fitment?