hot water | Page 8

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hot water

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  1. M

    Viessmann Vitodens 222-F: short cycling on hot water call

    I have a Viessmann Vitodens 222-F FS2B 26kW Storage Gas Boiler installed in 2014. The boiler has developed a problem recently where it short cycles but only when hot water is used. When hot water is turned on (on any tap in the property) the boiler remains off for about 45 sec. At the...
  2. M

    No Heating or Hot water AlphaCD25C

    My partner has an Alpha CD25C fitted and worked until a couple of weeks ago. Intermittently it will switch off after working for 4-5 days. When checking the boiler lights A + B flashing red alternately and light D is green. Tried doing a reset and switching off the main power and restarting...
  3. A

    Hot water very slow new mains pipe fitted

    Hi all Just had a new mains water pipe fitted and the hot water is very slow almost a trickle. We have a combi vaillant ecotec pro 824 and it seems to come out fast to begin with then slows down considerably. It seems the boiler is struggling to provide hot water at the adequate rate that it...
  4. G

    Best economic way to heat hot water no heating

    Purchased property, all electric heating has combination cylinder doing hot water for 1 bathroom only , updating bathroom to have a shower, bath a basin and kitchen sink that needs hot water with no gas main or boiler , what’s the cheapest system to install to heat this property’s water...
  5. D

    Boiler shutting off during heating hot water

    I have a Viessman Vitodens combi boiler. When running the hot tap (or shower), the water comes through hot but then the boiler shuts off, water gets cool, boiler fires up, water gets hot, and so on... Only started happening a few weeks ago. I have replaced the flow sensor, checked voltage where...
    • Dumbaskus
    • Thread
    • boiler heating hot water water
    • Replies: 2
    • Forum: Boilers
  6. A

    Rayburn 499k heating working but no hot water

    Hi all, just this morning seem to have a new problem to us with our Rayburn. Oven and central heating all operating as normal, however we have no hot water from any taps. We would normally hear the Rayburn kick in when hot water is demanded… however it is not. Any help hugely appreciated
  7. M

    Hot water solution for cafe??

    Hi guys. Do any of you knowledgable lot have any recommendations for hot water in a small cafe kitchen? They have a combi boiler which serves the property but she’s been having issues with it which then means she can’t open due to having no hot water? Any advice would be great.
  8. A

    Please help. When Heating on no hot water and vice-versa with Drayton 27101 - 3 port motorised valve

    We have a Drayton 27101 - 3 port motorised valve 22mm compression Issue: when heating switches on there is no hot water, when you switch heating off you get hot water. I replaced the motor in the motorised valve, everything started to work like it should. But an hour later and the same...
  9. G

    Different flow temperature for radiators and hot water tank circuits

    Hi Morning, I am looking at a new boiler and hot water cylinder setup for a house I am refurbishing and am getting conflicting advice on my question: Can I use a Combi or System boiler to have a different flow temperature for the hot water tank heater and the radiators. I appreciate the hw...
  10. M

    Hot water tap terrible flow

    Hi all, The hot water tap on our bath only dribbles, even when fully open. Our hot water pressure in the house isn't amazing, but it's not bad - the kitchen sink in the next door room is absolutely fine. I tried to link a video but the forum wouldn't let me, so have attached it instead. Does...
  11. R

    loosing hot water flow when macerator pump goes?

    Hello I have a salon and the plumbing for the hair wash basins is taken from the toilet, so when we are washing hair and the water is a good temperature, when the pump goes the water goes cold it takes a wile to come back. It used to do it a bit and now its much worse. A plumber said it cant be...
    • Russell James
    • Thread
    • flow hot water pump water
    • Replies: 3
    • Forum: Bathroom Advice
  12. S

    Camray 5 Combi Oil Boiler locks out on hot water demand

    Having a few issues with my combi boiler, its 14 years old now and due to be replaced as we are building extension, but need to get another 10 months out of the combi yet! Was having pressure and lockout issues and the relief vale had activated couple times, expansion tank is fuel of water so I...
    • Seumas
    • Thread
    • boiler combi hot water oil boiler water
    • Replies: 3
    • Forum: Boilers
  13. K

    No hot water if the heating is running, but otherwise okay.

    I have a strange fault with a Vaillant EcoTec combi-boiler. It's 100% reliable whenever the heating is called for, ie. by the room-stats. It's also 100% reliable when hot water is called for, ie. hot tap or shower, as long as the heating isn't running at the time. But if the heating is already...
  14. Bookalon

    hot water cylinder control valve

    Hi, I have an oil burner which is controlled via Tado to heat my home. My hot water cylinder is heated with water from the burner and also has a dumb immersion. I don’t use the immersion at all And would like to replace it. The burner heats the water in my hot water cylinder with a TRV valve...
  15. A

    Worcester rsf hot water cutting off

    Hi.i was asked to take a look at my customer worcester 28i. When calling for hot water the boiler fires up fine and the water gets hot. After approx 30secs of running hot water the boiler shuts down. With the hot tap still running( water gone cold) the boiler then fires up after about 5sec and...
    • Aquafix 73
    • Thread
    • hot water water worcester
    • Replies: 1
    • Forum: UK Plumbers Forums
  16. D

    install combi boiler and pressurised hot water cylinder

    Hello, looking for a heating engineer to recommend / install a pressurised cylinder and combi boiler system. There is ufh for a living space and two bathrooms, and radiators for the rest of the house. It's a 3 bed 2 bathroom property with solar panels on the roof, located in ringwood bh24. Any...
    • David Lowth
    • Thread
    • boiler combi combi boiler cylinder hot water install water water cylinder
    • Replies: 0
    • Forum: Boilers
  17. yngndrw

    Which Controls: OpenTherm with Hot Water Priority

    Hello all, I'm looking for suggestions on heating controls. We'll be upgrading our boiler (To a modulating oil system boiler - EOGB Sapphire) and unvented cylinder (To a Mixergy cylinder) as we currently have a 13 year old fixed output combi boiler with a unvented cylinder which is fed solely...
  18. J

    Combi- hot water pressure

    Hi We have recently had a 35kw combi boiler installed in a 4 bed 2 bathroom property. Since the combi boiler was installed we are getting slow hot water pressure affected shower and bath I wouldn’t say it is trickling but it is not a good pressure where you feel clean. The bath takes longer...
  19. P

    Heating works but not hot water

    I have an Ideal combi isar HE 24. Heating works perfectly but hot water does not at all. Turn any hot tap on and water gets luke warm after about 10 seconds then boiler disengages and water gets cold again. Been told it could be thermistor, or a couple of other things. Can anyone please help?
    • pathill83
    • Thread
    • heating hot water water
    • Replies: 1
    • Forum: UK Plumbers Forums
  20. M

    Intergas HRE 30 SB - Hot Water colder after engineer visit

    Morning All. I hope you can help. We recently had a (mostly) successful visit by an Intergas engineer who fixed problems with our boiler randomly turning off. However. Since his visit the hot water has been noticeably cooler than it was before. I’ve tried to change the temperature of (DHW)...
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