How to maintain the pressure from a combi boiler?

how do i repressure my boiler (vokera) after i have removed a radiator?

adam
December 2007

the simple answer is you can't.

thats why combis are only any good for small familys

a combi is not capable of running a shower and a ensuite at the same time.
a combi will deliver an average of 12 l/min at 35 degrees
run two showers at 12 l/min = 6 l/min each.

you can only take out what your mains cold will put in
so if you run one tap that will have good flow
run 3 cold taps then flow is reduced.


then end of the day combis are just a glorified water heater.

i meet loads of people that want a combi just to get rid of the copper cylinder and loft tanks to make room
but when you tell them they can't have their two bathrooms , washing machine etc running together they soon stick with a system boiler or a megaflow

you'll never beat a system boiler or if you want mains pressure at both hot / cold go for a megaflow system.

hi-spec plumbing
August 2007