Bath water temperature not hot

[Dickyseville]

I've just had my new bathroom fitted (well a few months ago) and my wifes complaining the water temperature in the bath isn't hot enough. We have a new combi boiler which works fine. In the ensuite we have a shower and sink which get very hot water if required. In the main bathroom in question, we have a sink where the water gets hot enough (i.e. very hot). Both the shower and bath are from Bathstore and are run from a triple control (i.e. shower control on top, temperature in middle and bath filler on bottom). If we turn the temperature up to full both the shower and bath water gets hot but gets no where near the temperature of the ensuite or sink in the same bathroom.

Does anyone know why this is happening and if we can easily do something about it?

Thanks for any ideas / suggestions offered,
Richard.

 

[Agile]

Dont turn the bath hot on to such a high flow.

A combi can only heat a certain amount of water, depending on model about 8-14 litres per minute.

Tony

 

[stevebamford]

Is it a thermostatic mixer that fills the bath ?

It probably has a max temperature set - I believe this can altered though

 

[Dickyseville]

Hi Agile,
I don't think it's anything to do with the flow because the shower is very similar in terms of flow to the ensuite and we can get the ensuite shower water painfully hot but not the shower in question.

Stevebamford,
I think it's a thermostatic mixer - here is the link to the product.
http://www.bathstore.com/_applicati...ical-thermostatic-shower-bath-valve-1729.html

Is it an easy job to alter the maximum temp or a specialist plumbing job?

Thanks,
Richard.

 

[stevebamford]

Not done it myself - but I don't think its too hard - just dig out the instructions from Bathstore

We've got a thermostatic mixer and yeah the bath water doesn't come out too hot

Just remember the max-temp is set as a safety feature

 

[Agile]

Hi Agile,

I don't think it's anything to do with the flow because the shower is very similar in terms of flow to the ensuite and we can get the ensuite shower water painfully hot but not the shower in question.

Thanks,
Richard.

Your first posting was complaining about the hot temperature in the bath.

This one is now talking about a shower.

You may not think its anything to do with the flow rate but nor do you know what it is either.

I expect that I would have a very good idea of what it might be but you have now confused the situation by changing the problem from a bath to a shower!

If you can CLEARLY state what the problem really is AND measure some flow rates then I should be able to help you.

Tony

 

[Keston]

Hi Agile,

I don't think it's anything to do with the flow because the shower is very similar in terms of flow to the ensuite and we can get the ensuite shower water painfully hot but not the shower in question.

Thanks,
Richard.

Your first posting was complaining about the hot temperature in the bath.

This one is now talking about a shower.

You may not think its anything to do with the flow rate but nor do you know what it is either.

I expect that I would have a very good idea of what it might be but you have now confused the situation by changing the problem from a bath to a shower!

If you can CLEARLY state what the problem really is AND measure some flow rates then I should be able to help you.

Tony

bad morning? 1:30am reply

 

[stevebamford]

Tony - In the original post he mentions its one of those triple controller jobbies that feeds the shower and the bath (bit like a mixer tap but built into the wall I guess)

 

[Agile]

OK, thanks for pointing that out Steve.

If the thermostatic element is active in both the supply to the bath and shower then they are usually designed to always mix a certain amount of cold water because the makers think it stops scalding. In reality it just stops anyone getting a hot shower!

To be honest I find these things to be a real pain. Perhaps there is an adjustment inside but if so then I have never come across it.

I rather get the impression they just mix 15% or whatever of cold at all times but we never seem to get anyone who specialises on showers. As far as possible I totally avoid them.

Its not helped by the fact most showers dont have any makers or model number on them. Installers ( usually builders ) throw away the instructions and we just are shown a blank product and the owner has no information to help us.

In this case as its newly fitted then hopefully the owner has the instructions and can identify the model and tell us ?

Tony