A thermostatic shower valve has the advantage of having a lock mechanism at 38c which is good if you have very young children as it stops them scolding themselves but personally I prefer the manual valves because they are easier to operate (1 lever) and cheaper. If you put a combi boiler in later it should be a case of removing the pump and making good? But I am not a plumber.
kenny bush wrote: First question is what is the advantage of a digital mixer, over a normal mixer, and is it worth the extra few quid?
This is totally dependant on your point of view. In some ways, these showers could be described as technology looking for somewhere to happen. The more complicated they are, the more there is to go wrong.
kenny bush wrote:Secondly, if I buy a shower that is meant to work off a pump, from a vented system, will the same shower work if I change the boiler to a combi later on, and just take the pumpout of the system?
You'd have to check. With a standard mixer shower and separate pump, yes conversion is as simple as removing the pump. With the digital, some pumps can be turned off, but others cannot be converted without hefty costs.
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