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cylinder

  1. 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...
  2. E

    HW cylinder leaking or condensation?

    Hi. I’ve just changed out a backup immersion heater on a copper vented cylinder. I’ve leak tested around all the connections to the cylinder using blue paper towel which tends to stain orange with moisture. After 24-48hrs of use not a trace of moisture. However after a week or two I’ve...
  3. S

    Can remove limescale from unvented direct cylinder (center store)

    I have an unvented direct cylinder from centerstore to use it only for hot water CenterStore direct unvented cylinder 120ltr | Wolseley - https://www.wolseley.co.uk/product/centerstore-direct-unvented-cylinder-120-ltr/ but with two immersion heaters. I had it the cylinder working fine for 4-5...
  4. M

    Primatic Cylinder help needed

    Hello everyone Before I succumb to this problem I’m reaching out for some help. There’s very little info on the web and I can’t get hold of a manual. The system is ancient but we’re not ready to renovate to a greener option for another 12 months so hoping to keep it going. Moved in with the...
  5. Jock Spanners

    Can I heat a vented cylinder with an empty coil?

    Evening All, I've dug myself into a hole due to being too busy and there being shortages of kit. Basically the Megaflow unvented cylinder I ordered last year has been delayed for three weeks and I cracked on changing the boiler thinking I could at least instal the boiler. So I'd put in a...
  6. 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...
  7. D

    Electric boiler and an unvented indirect hot water cylinder

    Hi, I have recently purchased a cottage with an LPG combi boiler (no mains gas in the area). I intend to replace this with an electric boiler and an unvented indirect hot water cylinder. The boiler will run four radiators and the hot water cylinder. The cottage has one bedroom. What size (kw)...
    • DavidB
    • Thread
    • boiler cylinder electric hot water unvented water water cylinder
    • Replies: 5
    • Forum: Boiler Advice Forum
  8. J

    Rapid Recovery Cylinder Coils

    Is there a standard for the above?, ie primary flow rate, primary flow temperature, reheat time from X degC to Y degC, continuous flow rates at different temperatures and coil area. It would be very useful if, at the very least it specified the design primary flowrate and temperature, and the...
  9. peterplumbingqueries

    How to turn off cylinder

    Hi, I've recently moved into a new house with a traditional heating system (header tank in loft, cylinder in airing cupboard, and boiler). I'm having a problem in that the hot water cylinder won't turn off completely at all at the moment, even when the central heating is switched to 'off' at the...
  10. 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...
  11. 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
  12. S

    Central Heating Air Build Up and Cylinder popping noises

    Hi Guys, Been having a real saga and head scratching situation. I originally had 1 problem, and now 2. Original issue: Air being built up in rads. Having to bleed every other day if not daily. All upstairs rads getting air, and one downstairs in utility room, same room as boiler and not far...
  13. 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...
  14. 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...
  15. 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
  16. 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
  17. 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...
  18. 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...
  19. 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...
  20. MikeyMing

    Cylinder on a Combination Boiler

    Hi, I read a post explaining the details of how this can be done a while back and now cant find it anywhere. I dont think it was on this forum, but does anyone know how this could be done? Thanks

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