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Hot water problem

We have a 5 yr old combi boiler which is serviced yearly under a contract. The problem is that although the heating works well and the water is hot we don't seem to be able to get much hot water through in the bathroom upstairs. It runs lukewarm unless we turn the tap down reducing the water pressure to not much more than a dribble. Takes ages to run a bath.

The water downstairs is fine even when the tap is turned on fully. I've had the service contract company out twice and they can't find a problem, just said to continue turning the tap down to get hot water. It's becoming very annoying now though.

Any ideas or suggestions please?
Trying to save money to move to France.....eventually!

£2 savers club = £24 saved so far :T

Comments

  • smudger1964
    smudger1964 Posts: 683 Forumite
    Part of the Furniture 500 Posts Name Dropper Photogenic
    I am no expert just my experience of my own combi and lengthy discussions with my boiler installer.I think a lot depends on what the hot water flow rate is from your combi boiler is.The flow rate from my boiler is 14 litres per minute which is fairly good or so im led to believe but i still have to turn the tap down a bit when filling my bath if I leave it turned up fully the water is only at best warm.Also it depends on how long the pipes are to your bathroom from the boiler the longer the distance the more heat is lost from boiler to bathroom.It definately takes longer though to fill a bath with a combi than with the old tank fed system,I just turn the hot tap down to fill and do something else for 5 minutes while it fills.hope this helps
  • Ohhh dunno about the hot water flow rate but I'll have a look into that thanks. The boiler isn't too far from the bathroom so I suppose that shouldn't be the problem.
    Trying to save money to move to France.....eventually!

    £2 savers club = £24 saved so far :T
  • catkins
    catkins Posts: 5,703 Forumite
    I've been Money Tipped!
    Pipes to bath are probably 22mm and chances are pipes to boiler are 15mm so water flows too quickly through boiler for it to heat up to a good temp.
    The world is over 4 billion years old and yet you somehow managed to exist at the same time as David Bowie
  • roswell
    roswell Posts: 2,447 Forumite
    you shoould ahve a water temp setting and a heating temp setting on the boiler check that the water one is in the marked zone, also check the pressure of the boiler (details in distruction manual)
    If it doesnt pay rent sell it.
    Mortgage - £2,000
    Updated - November 2012
  • Browntoa
    Browntoa Posts: 49,612 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    on mine the Diverter valve is partially clogged with crud and heats to a maximum of 66C ....I have to turn down the water flow to achieve that at the best of time

    on my list of jobs for the summer :) when the heating is not needed
    Ex forum ambassador

    Long term forum member
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