Tap water too hot

TheProfessional

Thanks all for your comments and help. Interesting about the speed of flow and temperature. Will have a play with that tomorrow. 

I think the boiler is about 15 years old so probably not far off replacement. Funny enough it appears to have been serviced regularly (maybe not very well) by looking at paperwork.

Will have a look at thermostatic taps and getting a plumber in

grumbler

IMO, a thermostatic mixer valve under the basin can be much cheaper and simpler option. Mine cost me c. £20.

TheProfessional

What does the valve do? Attach to the cold feed and add cold? I assumed thermostatic mixers meant a mixer tap

grumbler

When installing my bidet shower, I connected my basin tap hot water hose to the valve as well.

There are different designs, including wall-mounted. The cheapest "buy it now" I see on ebay is £21

https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=thermostatic+mixing+valve&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=thermostatic+mixing+valve

Jeepers_Creepers

TheProfessional said:

What does the valve do? Attach to the cold feed and add cold? I assumed thermostatic mixers meant a mixer tap

Yes, and blends the two to get the set temp. 

As I understand it, you could keep your existing taps and just feed the outlet from this to the 'hot' which will then deliver water at no more than the set temp; your cold tap can remain 'cold'.

Jeepers_Creepers

Possible bargains to be had: 
https://www.ebay.co.uk/itm/Boss-Thermostatic-Mixing-Valve/174541688233?hash=item28a37ecda9:g:UgoAAOSwzJZfvWKA
https://www.ebay.co.uk/itm/Thermostatic-Mixing-Valve-15mm/174538585601?hash=item28a34f7601:g:AGIAAOSwGypfw3al
etc.

TheProfessional

Ah brilliant, this sounds ideal. Thanks guys. Will get the part and ask a plumber to come and get it fitted! Heaven knows how them previous owner continued with it like this. It is in the main bathroom rather than the en-suite so they probably never really used it!

Homer_home

TheProfessional said:

Thanks all for your comments and help. Interesting about the speed of flow and temperature. Will have a play with that tomorrow. 

I think the boiler is about 15 years old so probably not far off replacement. Funny enough it appears to have been serviced regularly (maybe not very well) by looking at paperwork.

Will have a look at thermostatic taps and getting a plumber in

Don't forget to increase the pressure to your Ch circuit it's low