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hot water

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  1. A

    No hot water coming out from upstairs taps

    Hi there, I am in urgent need of advice! The weather has plummeted over the past week so at nights its -6 so this may be the cause. Anyways, since early this morning there has been no water coming out from the upstairs hot taps, both sink and bath. The cold taps work fine, I have checked...
  2. J

    No hot water in bath tap

    The only hot tap that doesn't give constant hot water in the house is the bath tap. It gets hot for seconds and then goes lukewarm/cold. The connector had been disconnected from the tap, opened up the isolation valve and let the water run in to a bucket with the same thing happening, starts hot...
  3. N

    Radiators hot when hot water on

    My rads throughout the house are blisteringly hot when hot water is on, and keep going regardless of thermostat temp; when hot water is off they do not heat, even when heating is set to on and thermostat up high; I have 2 x 2-way motorised valves in the airing cupboard, both replaced in 2019...
  4. F

    Ideal 25kw combi boiler issue No heating Just hot water

    I wish to thank the boiler guy for disconnecting Hive for me from the combi boiler. You did a wonderful job of cutting off the heating bit, so now I cannot heat the house but still have lovely hot water coming out of the taps, So luckily I have moved my 76-year-old father out of the house. Turns...
    • Fekwit no clue
    • Thread
    • boiler combi combi boiler heating hot water ideal water
    • Replies: 10
    • Forum: Boilers
  5. A

    TMV valve under bath with 22mm hot water and 15mm cold water mains

    The bath taps have 22mm inlets currently the cold water mains 15mm is fixed to the tap by a copper adapter 15mm to 22mm. The hot water is 22mm gravity fed. Is it ok to add a 15mm T to the cold water pipe and then add 22ml adaptor to the T to connect to a 22m TMV . I cannot find any TMValves...
    • Andy BYF
    • Thread
    • bath cold hot water mains valve water
    • Replies: 8
    • Forum: UK Plumbers Forums
  6. C

    Hot water storage cylinder timer installation

    Hello, I have a few questions about my unvented hot water storage cylinder please: 1. How many kWh is each 3kWh element (day / night) supposed to use over a 7-hour period? I suppose the thermostat prevents them from running constantly? 2. Can a timer be installed on the element that runs at...
  7. D

    Heating only works when hot water is on

    Hi My heating only works if my hot water is on at the same time! Last year they worked separately perfectly fine! Any idea why this could be? Thanks
  8. pulak25

    Shower water not connecting to boiler for hot water

    Hi, the water from my shower does not not trigger my boiler to turn on and heat the water most of the time. This problem started a few weeks ago (the shower worked as expected with heated water coming through before that). Every other faucet in my flat (including the faucet in the washbasin in...
    • pulak25
    • Thread
    • boiler hot water shower water
    • Replies: 4
    • Forum: Boilers
  9. T

    Hot water not as hot after turning heating temp down

    I have a Boulter Bouderous 500 boiler that serves radiators and a hot water tank, the water temp has always been set at 56 degrees which feels about right for us. Recently the heating has been on timed for twice a day and extras hours used as and when needed, I read the gas meter over a 24 hour...
  10. C

    Horizontal hot water cylinder install. Does this look correct?

    Anyone out there able to help? Is this correct or are there things wrong and if so what?
  11. K

    Gravity feed hot water tank

    I’m fitting a ‘gravity feed’ hot water tank in a mobile home that has restricted head height for a cold gravity feed header tank. I can install an expansion over flow to an outside drain. Is it possible to use a Pressure Reducing Valve to supply the cold water from the mains supply. Or is there...
  12. B

    Hot water venting into header tank.

    Hi, I’m having a problem with hw venting into the small header tank. This happens when it’s set to hw only or CH. I’ve tried lowering the water level in the header tank but it makes no difference. The incoming hot water is being taken back into system via the primary circuit 15mm supply so...
  13. O

    Heating always on and reduced hot water temp

    Hello. I wonder if someone can help. We have noticed 2 issues in our house over the last couple of weeks . We have a Glow Worm Ultracom 24cxi combi boiler and have never had problems with it previously 1) central heating always/near constantly on. We have 2 small radiators and a towel rail...
  14. F

    Elson Sapphire double feed indirect hot water tank

    Hi, I have a fairly modern multifuel stove with a back boiler connected to a Elson Sapphire double feed indirect hot water tank and I need to drain down the system to move a radiator. Would anyone be able to offer any advice as to the correct drain down and refill procedure for this tank as...
  15. S

    Help diagnosing bubbling originating in hot water cylinder

    Hi there, I recently replaced a dead central heating pump in my home, so drained down the system completely, fitted new pump and filled up. What I'm experiencing now is a periodic bubbling noise, it starts in the hot water cylinder on the 1st floor and makes its way to the boiler on the ground...
  16. R

    Unvented Hot Water System

    Hi, I’ve purchased a new build property and had a few issues with the unvented hot water system. I’ve now asked the developer, builder and plumber for proof of G3 certificate of the plumbers but have been told they have no need to show me this. I’ve searched the gas safe register and it’s not...
    • Rachael1278
    • Thread
    • hot water system unvented water
    • Replies: 66
    • Forum: UK Plumbers Forums
  17. E

    Megaflo / Vaillant / Nest not producing hot water - help!

    We have moved into a house which has a system involving a Vaillant boiler, indirect Megaflo and Nest. The Megaflo has been producing the hot water since we moved in (which we didn't realise) but the fuse blew the other day. We've now replaced the fuse. The boiler engineer was able to 'boost' the...
  18. W

    Boiler starts when no hot water taps open

    Hi, I've just had a brand new combi boiler installed just a few days ago. I've noticed that the boiler will fire up randomly with the tap light flashing meaning it's providing hot water. The only issue is no hot water taps are on/open so I don't understand why the boiler is firing up thinking a...
    • Wookie192
    • Thread
    • boiler hot water taps water
    • Replies: 4
    • Forum: Boilers
  19. P

    Hot water high pressure problem

    Hi. I have a hot water high pressure problem that my heating engineer (and other engineers that he has spoken to) cannot fix. I’m hoping someone on the forum can explain what is happening and how to resolve it. My hot water system uses an air bubble at the top of the hot water tank for...
    • Patrick Walpole
    • Thread
    • high hot water pressure water
    • Replies: 4
    • Forum: UK Plumbers Forums
  20. B

    How long should I have my hot water coming on a day?

    I guess it all depends on the number of people living in a property and whether you have a shower everyday etc. But what's the recommended time I should have my hot water coming on a day. My local plumber stated an hour in the morning and an hour in the evening - seems excessive to me. Any thoughts?
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