swapping single channel c/h programmer to 2 channel

[John]

swapping a single channel programmer for a 2 channel as the hot water is continually on is this a easy enough task to do the controller on the system is a drayton tempus 1 Thanks

[John Rumm]

What type of boiler? (e.g. Heating only, system, combi etc)

What kind of zoning does the system have? (see [1])

[1] Lastly what are you trying to achieve? (i.e. the ability to *not* heat the water?)

[DerbyBorn]

John Rumm [e-mail] wrote in news: [e-mail]:

Would having a cylinder thermostat be a more sensible solution?

[John Rumm]

Quite possibly, or at least part of a solution. However we need to understand what is actually installed to be able to answer more sensibly.