unvented cylinder | Page 2

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unvented cylinder

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  1. N

    Unvented cylinder size

    200/210 or 250l indirect unvented cylinder... Pros and cons of both please guys, whats the thinking?? Better to go bigger, or are there other considerations to be thought of....?
  2. D

    Efficient way to heat radiators and unvented cylinder

    I have a gas boiler heating radiators and also heating an unvented cylinder. I have a Honeywell programmer which has the water heating up 1.5 hours early morning 30 mins midday and 2 hours evening The heating is on a couple of times a day. With the energy prices I am wanted to ask if hearing...
  3. W

    Unvented cylinder - noise

    Have recently had unvented cylinder installed and when hot water is run it often makes a loud prolongued noise (like a pipe bending or plsne). Any ideas? Guy who installed it doesnt know (he is apparently qualified...)
    • Widdy123
    • Thread
    • cylinder noise unvented unvented cylinder
    • Replies: 1
    • Forum: UK Plumbers Forums
  4. J

    Unvented cylinder recommendations??

    Hi all, I'm due to install my first unvented cylinder. (I've had my unvented ticket for several years, but not actually done a brand new unvented install yet). It's a house renovation, with a new hw and heating system. The house currently has an old gravity floor boiler, that will be coming...
  5. J

    unvented cylinder v combi store

    Hi all, My customer is renovating a house. Complete renovation of the plumbing. It's a three-bed house for a young family of 3. It will have one main bathroom (bath and maybe an over-bath shower), plus two shower ensuites. I have yet to check the incoming water pressures/flow rates to the...
  6. Fogster74

    Working on heating side of system with an unvented cylinder, no G3?

    Hi all, I'm a competent DIYer with an engineering background and am active in Heritage Buildings. I never touch anything I'm not allowed to albeit I've worked on the wet side of my own heating on the central heating circuit before when I had a combi - balancing rads, add a Fernox TF1, washing...
  7. C

    Humming from unvented cylinder

    Hopefully someone can point me in the right direction. Before I start I am G3 qualified. As per usual I was asked to rectify a leak on a combination valve. I installed a like for like 3.5 bar valve, all good, however I I checked pressure in exp vessel to find no pressure at all (Never been...
  8. A

    Noisy unvented cylinder advice Pls.

    HI everyone, I'm looking for some thought/opinions on what could be causing issues with noise and pressure since having a pressurised un-vented cylinder installed with an Air Source Heat Pump from a traditional gravity fed system. When it was first installed, whenever a hot tap was run there...
  9. U

    Unvented Cylinder Discharge pipe not to regs

    Hi, I'm looking for some advice on how to proceed with my current situation. We bought a new build and after getting my boiler and unvented cylinder serviced my plumber raised the fact that he estimates the D2 discharge pipe to have a resistance flow length on 12m and as it's 22mm copper pipe...
  10. B

    Unvented cylinder won't stop heating up when CH is turned on

    I have recently moved into a house with the following heating system: Traditional boiler (Worcester Greenstar Ri 24 with only one temperature dial and no pressure gauge) Vented central heating (cold tank in loft) Unvented hot water (Excelsior cylinder with pressure gauge plus white expansion...
  11. AndyCoo

    Central mixing valve near unvented cylinder

    Hi all I have a mixing valve question. Should I have one fitted close to my new unvented cylinder?
  12. P

    Unvented cylinder wiring

    Hello all I'm replacing 2 unvented cylinder a which are (a) end of life and (b) installed in a way which is clearly not right (no 2 port shut off valve on the heating coils just for a start, and there are other issues). The heating coils are currently controlled with 3 port valves that are...
  13. M

    Buffer Tank/Thermal Store addition to S Plan Plus & Unvented Cylinder?

    Hi sorry bit of an odd query here. With the increases in energy costs now and in the future we are trying to find any way to reduce our exposure (retired couple on fixed incomes). We are fortunate enough to have bought solar panels at the beginning of the year but as we head towards winter the...
  14. S

    Unvented Cylinder set up via gas system boiler and time clock

    Hi I wanted some steer from he forum for my set up. 2 storey house now extended on ground and a loft conversion. New plumbing install as of 18months. Worcester bosch 8000 life sysem boiler via natural gas. Time clock with HW / CH split, 7 day digital. 250litre Gledhill Select Indirect...
    • Space_Goat
    • Thread
    • boiler cylinder gas engineer system unvented unvented cylinder
    • Replies: 15
    • Forum: Boilers
  15. H

    Unvented cylinder for ASHP

    Hi all. I have an Isoflo CL170 cylinder with good few years life left in it in my system which has performed trouble-free other than the odd new immersion element. I'm getting a new ASHP fitted and the installer is recommending scrapping the Isoflo and replacing it with a Secon Trade Heatpump...
  16. R

    Pressure loss in new loft (unvented cylinder)

    Hello. I need some urgent advice re water pressure in an unvented system. A few months back, I had my gravity fed system + boiler changed to an unvented cylinder + system boiler. The water pressure following the swap was incredible. We were originally talking about putting in a mains booster...
  17. R

    Megaflo Eco System Unvented Cylinder Loud Bangs

    Hi Everyone, Hoping for some advise / assistance on an issue I have on my Megaflo Eco System Unvented Cylinder which is making a loud band. This occurs when the hot water heating is on and when the cylinder heats up to temperature, once at temperature the motorized valve closes and there a...
  18. R

    Unvented cylinder viability??

    I'm looking at getting an unvented cylinder fitted but want to know if it's viable before even getting a quote. My cold incoming main is only 15mm but I do get a good pressure and flow which doesn't change alot when another tap or shower is used. Would an unvented be possible?
  19. B

    Nightmare boiler and unvented cylinder installation

    Hello and happy Easter everyone, hope you're having more fun than me! Friendly advice needed please. Long story short, we arranged to have a 2 day 2 engineer installation of system boiler and unvented cylinder, replacing a heat only boiler and unvented cylinder with broken coil. Got 3 quotes...
    • BollyR
    • Thread
    • boiler cylinder installation unvented unvented cylinder
    • Replies: 41
    • Forum: Boilers
  20. J

    Suitability of Unvented Cylinder

    Hi I've read through dozens of threads on here about unvented systems but was wondering if someone might provide some advice on an upgrade we are planning as part of a bathroom refurb Current Setup: Gravity fed system with cold water tank in the loft and hot water tank in the hot press (1st...
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