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That boiler, if well serviced. Working to specs and gas rated correctly, will do 12 litres a min max at this time of year.
So if your shower...
55,000 through a 22mm zone valve.
Fit a cheap low loss header to the boiler and a suitably sized pump,to the rads. Probably getting lots of restriction through the boiler.
Your combi boiler has limited capability.
Probably between 8.5 to 12 litres a minute, d pending on the model and size.
That head will handle 18...
Pretty sure this is a wind up, as your vague with the info.
We will try and help . But you need to come armed with more and not drip fed .
Is it a boiler ? Or just a heater?
Any pics, so we have a better insight?
Stop feeding the troll.
End of !
Where are you based?
Your post was about hot water flow from taps?
No flow rate through it, as the cold is mixing
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