My combi struggles a bit in the cold weather to cope with long showers with
the high flow rate through my shower. I guess that reducing the flow would
solve the problem. If you agree, what would be the best way to achieve this?
I imagine I need to reduce both the hot and cold rates together. Just
fitting taps seems a bit hap-hazard. Is there something better?

John

john wrote:

My combi struggles a bit in the cold weather to cope with long showers with
the high flow rate through my shower. I guess that reducing the flow would
solve the problem. If you agree, what would be the best way to achieve this?
I imagine I need to reduce both the hot and cold rates together. Just
fitting taps seems a bit hap-hazard. Is there something better?

Have a look where the cold water feed goes into the combi and see if it
has a valve (most do). Turn this this off a little to restrict the flow
of cold water to the combi. This will reduce the maximum flow rate from
any hot tap (and the shower) fed by the combi and hence limit the
temperature fall a bit. No need to do anything special with the shower -
that ought to sort itself out (the 415 is pressure balanced rather than
thermostatic IIUC - good choice for mains pressure stored hot water
systems but not so good on combi's)

--
Cheers,

John.

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