unvented cylinder | Page 3

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unvented cylinder

Recent contents Top users
  1. pufferfish91

    Unvented Cylinder Gushing Water from Relief Valve?

    Hi folks, I hope someone can help me. This morning we noticed water leaking under the hot water cylinder in hotpress room. On closer inspection, the water was just gushing on to the floor and it was only by chance we noticed it. We turned off the heating system and spent the morning emptying...
  2. O

    Unvented cylinder - usage question

    We have an unvented cylinder with a Horstmann Electronic 7 timer. The cylinder only serves a wet room which is very rarely used. The rest of the house is served by a Vaillant combi boiler. The timer on the cylinder is set to heat up water 3 times per 24 hours, which I think it is the default...
  3. R

    Advantage of unvented cylinder outweigh the disadvantages?

    I have come to my decision I might as well do my G3, even if only for maintenance jobs. Question I have is WHY we are fitting so many of these unvented cylinders i.e. 27 gallons /117l size or above (I'm not disputing the need for 10l unvented 'cylinders'). They 'need' annual servicing by a G3...
  4. R

    Do I need G3 to repair a 10l unvented cylinder?

    Hi. Potential customer has a leaking 10l Ariston Europrisma cylinder. Probably just a flange gasket or the magnesium anode needs replacing. While I feel this is easily the sort of task I can tackle as I am very good at mending things, I get the impression I'd need my G3 to install such a...
  5. S

    Insulate a Unvented Cylinder

    Hi I have a warmflow unvented water cylinder (indirect 250) in a hotpress. It was installed two years ago, but never had any lagging put around it. Wanted to ask if that would have been for a reason why it wouldn't have, and also would insulation be a good idea to warp around the tank? Thanks
  6. I

    Draining ACV unvented Cylinder

    Hi Guys, has anyone come across the ACV cylinders, my client has SLE-160 in the loft and there is no drain off boss.. The cold inlet is on the top next to the hot outlet. I need to replace the immersion element located at the bottom of the tank. MI is not helpful. Possibly looking at...
  7. J

    advice on timer control for Unvented Cylinder

    Would need some advice if I could replace Newlec Economy to OP Ecosave Timer control for “Unvented Cylinder Megaflo Water heater” As the current Newlec Economy timer control limits to heat up full tank of water during midnight only( one time a day. ) OP Ecosave Timer control allows to set...
  8. J

    Plumber or electrician to replace new timer switch Unvented cylinder

    Replace the current E7 Newlec Economy control to a mechanical 24 hour timer switch for unvented cylinder water heater, may I know if I ask plumber or electrician to do this job. Because Newlec Economy controller can heat up water once a day in midnight .I would require constant hot water in...
  9. D

    Unvented cylinder location

    Hi all, I have a fairly large property (6 bed 4 storey victorian) and when we moved in the pre-historic boiler broke down and it resided in its own boiler room attached to the kitchen. It broke down in November 19 and had a nightmare getting anyone to fix it but they said it was unrepairable as...
    • Dan_boiler
    • Thread
    • cylinder unvented unvented cylinder
    • Replies: 2
    • Forum: UK Plumbers Forums
  10. J

    Unvented cylinder installed but no G3 qualification

    I had an unvented cylinder (and gas boiler) installed by a Gas Safe Register engineer. He later informed Gas Safe Register which issued me a gas certificate. But Gas Safe Register told me I should have a Building Regulation Certificate for unvented cylinder installation. But the gas engineer...
  11. J

    Advice on Install a new Electric Shower (currently unvented cylinder)

    Advice on Install a new Electric Shower for shower cubicle and keep using the unvented cylinder water heater for bathtub I have an Unvented Cylinder Water heater 125 litre (MegaFlo) in an apartment of ( 15 years old) Currently it is not really capable of delivering enough hot water for more...
  12. Jock Spanners

    Unvented cylinder discharge into gulley connected to soakaway

    Good afternoon everyone, I'm having problems siting an unvented cylinder. The best solution I can see is to put it in the customer's garage but there's no drain nearby. I could easily discharge it through the wall, install a gulley and link it to a soakaway under the lawn. Have any of you ever...
  13. J

    Tundish in unvented cylinder system throwing lots of hot water away

    We’ve had some issues with our boiler system making loud noises recently which sound like a bath being filled when you’re sat downstairs. Upon inspection of the cylinder upstairs (boiler is downstairs), we can see lots of hot water coming out of the tank through the tundish and we have no idea...
    • James Reeves
    • Thread
    • cylinder hot water system unvented unvented cylinder water
    • Replies: 2
    • Forum: UK Plumbers Forums
  14. R

    High gain unvented cylinder

    Hi there I am looking at changing my vented cylinder to an unvented 210L. I currently have a 30kw system boiler which I would like to continue using with the new cylinder. Looking at the various manufacturers of unvented cylinders, I see some of them have ‘high gain’ versions, such as Joule...
    • rk1655
    • Thread
    • cylinder high unvented unvented cylinder
    • Replies: 4
    • Forum: UK Plumbers Forums
  15. N

    Unvented cylinder pressure issues

    Hi, I am having issues with an unvented water cylinder and just wanted to double check something. About a week ago I noticed that when the system was turned on there was a dripping coming from the prv and pressure rose to around 4.5 bar. As soon as a toilet was flushed or tap was run the...
  16. J

    Installed Unvented cylinder will cause water pressure high?

    Dear all, I recently got a gas engineer installed a new boiler and an unvented cylinder & expansion vessel in my house, replaced the old boiler, vented cylinder and water tanks in loft. Just after a month of installation, last week, the house lost hot water, it was because the cylinder...
  17. M

    Unvented cylinder problems - over pressure or faulty expansion tank?

    Hi, New to this forum and also complete novice who knows pretty much nothing about plumbing. However I have done quite some google searching trying to find some answers. I live in a 1st floor flat which uses an electric duel element direct unvented water heater cylinder (150 litres). Recently I...
  18. D

    How long should I be heating my unvented cylinder

    Hi All, I have a tempest 360litre cylinder with a Ecotec 637 (37kw) all tucked away in the loft. I currently heat it for an 1.30 at 7 a.m. in the morning and then for 3 hours at 6pm till 9pm I actually wasn't sure this is the best way to heat it as I've read you should leave it for 6 hours...
  19. S

    Direct unvented cylinder

    Hi having trouble finding a local plumber to fit a direct unvented cylinder. Advertised on 3 board's but with no response. I have posted a budget of £1000 is this too low? This is for hot water only not heating. Kevin
  20. M

    Yellow water from new unvented cylinder

    Has anyone experienced this before. Converted gravity hot water to new unvented cylinder (150l indirect evocyl) filled the cylinder up and had yellow water for about half an hour before it started to clear. Any ideas from anyone. I’m G3 registered. Was converted due to suspected split coil in...
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