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water cylinder

  1. C

    Using a vented hot water cylinder on an invented system

    Hi, Can you use a vented hot water cylinder on an unvented system? Many Thanks, Carl
  2. B

    unvented hot water cylinder in a roof space of a two storey house

    unvented hot water cylinder in a roof space of a two storey house in an existing property what is best option for discharge pipe to terminate.It will be 22mm copper but didn't want to run it all the way down the back of the house to ground level if possible.
  3. C

    What is the thread out of the top of a hot water cylinder?

    I want to fit a sussex flange to a standard hot water cylinder about 10 years old, normally there is a 1inch bsp tapping, this one has a male thread out of the top with a compression 28mm to 22 mm end feed reducer, held in place by a 28mm nut and olive, it does not have a male iron to copper...
  4. N

    Water cylinder re heat time

    Hello all, i am doing work for a customer who has asked me what the reheat time of a 250 litre cylinder is. To be honest after all the years of doing plumbing this is a question that i have never been asked before because usually if you need a hot water cylinder then it is what it is, you just...
  5. H

    Should I dpressurise hot water cylinder?

    I am closing up a property for 2-3 months and will be turning mains water off. Hot water is supplied by a pressurised water cylinder in the loft. Should I depressurise it before I leave the property? If so is it simply a matter of switching water off and run hot tap for a while? Any advice...
  6. S

    Should the pipe from the top of the Water Cylinder be hot rather than warm

    Hi all, I have a Megaflo Heatrae Sadia running from a conventionla boiler. The boiler is 12 months old, the cylinder about 6 years old. The cylinder has two separate pipes in at the bottom left, both of which are too hot to hold for more than a second. There is a stone cold pipe going in the...
  7. D

    Has my hot water cylinder coil broke?

    Hi All, On Thursday there was a water leake a few steets away from us And we had no water most of the day. About 10 minutes before my neigbour said the water supply was back on I remember hearing a fair amount of activity from our airing cupboard. I took this as water/air moving through as the...
  8. D

    Do I need an unvented hot water cylinder?

    Hi there, we are due to have a new shower room built in a loft conversion. We are a family of 5, with one existing bathroom. Will we need to have an unvented hot water system installed to enable the 2 showers to run successfully at the same time? Pressure and flow at house is 2 bars/18 litres...
  9. B

    URGENT Leaking hot water cylinder pipe

    Hi I have a leak from one of the pipes, going into the hot water cylinder, in the airing cupboard. There are 2 pipes going into the cylinder on the left hand side, (I think it is called a vented cylinder - colder water tank in loft) and it is the top pipe which is leaking, (the one with yellow...
  10. G

    G3 qualification and unvented hot water cylinder certificate

    Hi, I've had a boiler and unvented pressurised hot water cylinder installed. I have received the Gas Safe certificate for my boiler install but nothing for the cylinder. I've been in touch with the plumber and he says he doesn't apply for that for customers and I would have to do it myself. Is...
    • GC2
    • Thread
    • cylinder hot water unvented water water cylinder
    • Replies: 33
    • Forum: UK Plumbers Forums
  11. S

    Identifying limescale in a hot water cylinder?

    Hi there, I have a 20 year old hot water cylinder, which is heated from an oil boiler (aga), and has an electric immersion element as well. I don't get much hot water out of the system before it turns cold, and I've been told it might be limescaled up and need replacing. I installed 4...
  12. A

    Gravity system - Move Hot Water Cylinder to Roof Space?

    We've had conflicting advice from two plumbers - I wonder if anyone here can clarify. We have a gravity fed system system, currently with the hot water cylinder alongside the boiler which is in a separate 1 story room with some roof space. We're looking at moving the cylinder into the roof...
  13. S

    Dripping hot water cylinder from upper thermostat... Is it safe?

    Hello I live in a rented flat and have noticed water dripping from the top thermostat of the water cylinder (see picture). It worries me as there is clearly electric wiring nearby, and also another thermostat at the bottom that the water is dripping towards. My landlord's plumber is...
  14. D

    No hot water from hot water cylinder

    Having difficulty with our hot water from hot water cylinder. Now don't have a clue which taps / valves should be on or off. No hot water coming through to the taps at all. Any help would be appreciated. Thanks
  15. Meady

    Split hot water cylinder coil

    A friend of mines f+e tank is constantly dripping even when the boiler is off so the pump isn't running. Before contacting me he has already changed the ball valve, which didn't stop it and isolated the mains to the f+e tank but it was still constantly dripping. I have told him to isolate...
  16. M

    Combined direct vented hot water cylinder

    Hi, I have a combined direct vented hot water cylinder installed in my flat and it works on economy 7. Just recently I have noticed that when I open a hot tap the water didn't come out warm and also after about 2 minutes the cylinder or pipework to it started juddering. Just in case the heating...
  17. G

    Replacement hot water cylinder query

    I'm going to replace my hot water cylinder with as close as I can to like for like. Replacing as it doesn't have an immersion heater. It's a copper vertical 140Litre tank in an indirect vented system and the inlets and outlets seem pretty standard, except it has an outlet for the shower that's...
  18. J

    Hot Water Cylinder Temperatures

    150 litre cylinder, top 100 litres are heated by a coil (average temp 70C), the bottom 50 litres (or the whole 150 litres in summer) are heated by a solar coil. There are PT1000 probes fitted in numerous places and the HW zone valve is controlled very accurately by a spare output from the solar...
  19. M

    Hot water cylinder recomendations. Is Megaflo the best ?

    Hi All. I have found this forum extremely useful, keep up the good work guys. I was having a conversation with a colleague of mine, he reckons megaflo make the best hot water cylinders but I suspect his bias might be because megaflo dont have an external expansion vessel, which makes it look...
  20. N

    Hot water cylinder for heating

    Hi all, new around here so first a brief intro. Keen diy man with plenty of mech and pipe experience.. We have a good solar hot water system and I'm thinking about using this hot water to supply a couple of radiators. My thinking is that during the day the hot water cylinder should be fully...

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