Hi,
I have had a good search through the many combi flow related posts but can't seem to find any answer - sorry if I missed it.
Our new house has a Potterton Puma 80 combi - I have never had a combi before. Cold water flow is 16 l/m. Hot alone is around 8 l/m. However when both the hot and cold are run together the hot flow reduces to below 4 l/m.
At this flow the boiler keeps cutting out (presumably as the flow is too low), so not only does the hot water end up being low but it goes in waves of temperature.
Is this just the nature of combi boilers? I can't believe that people just run one tap at a time or wait for the toilet to re-fill etc.
Thanks,
Jim
I have had a good search through the many combi flow related posts but can't seem to find any answer - sorry if I missed it.
Our new house has a Potterton Puma 80 combi - I have never had a combi before. Cold water flow is 16 l/m. Hot alone is around 8 l/m. However when both the hot and cold are run together the hot flow reduces to below 4 l/m.
At this flow the boiler keeps cutting out (presumably as the flow is too low), so not only does the hot water end up being low but it goes in waves of temperature.
Is this just the nature of combi boilers? I can't believe that people just run one tap at a time or wait for the toilet to re-fill etc.
Thanks,
Jim