unvented cylinder

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unvented cylinder

Recent contents Top users
  1. T

    Shower Pump on air to water Unvented Cylinder?

    Hi, I'm in my new build 2 years and the shower pump has died. I have an air to water unit downstairs is in the utility which I've been told is unvented and pressurised. The cold water feed into this cylinder is from the attic tank, not the mains as I turned off the mains stopcock to see if hot...
  2. M

    Unvented cylinder D2 pipework installation to toilet waste pipe

    Hi guys, just want to get advice, i want to replace venten to unvented cylinder, is it ok to install D2 pipe to toilet waste pipe see picture? as there is no easy options to get it outside.
    • MPGASANDPLUMBING
    • Thread
    • cylinder installation pipe pipework toilet unvented unvented cylinder waste waste pipe
    • Replies: 2
    • Forum: Boilers
  3. C

    Ariston Classico HE STD 150 unvented cylinder leak

    Good evening, I'd like your opinion on something that is worrying me please: my landlady's plumber replaced the bottom/night element of my 20-year-old unvented cylinder (an Ariston Classico HE STD 150) 5 days ago and I hadn't noticed that it was leaking. He fixed the leak today but now the...
  4. M

    Composite valves unvented cylinder

    Do most composite valves now for unvented cylinders have a tee on them For the expansion valve connection? The ones I used to fit just had the balanced cold connection coming of it. Them I tee'd off downstream of the composite valve for the expansion
  5. M

    Unvented cylinder expansion vessel siting?

    Just a quick one folks if you don’t mind. Are there any regs around the siting of a vessel? Can they be hung horizontal or upside down if need be? Cheers
    • macka09
    • Thread
    • cylinder expansion expansion vessel unvented unvented cylinder vessel
    • Replies: 2
    • Forum: Plumbers Arms
  6. P

    Unvented Cylinder Single coil heat pump vs twin coil solar

    Hi, I'm looking to purchase a 300L unvented indirect cylinder to work with a standard heat only boiler. I may have solar panels in the future, but likely the PV kind rather than the thermal kind, and won't be having heat pump in the future. So the cylinder would be connected to the boiler at...
    • p--man
    • Thread
    • cylinder heat pump unvented unvented cylinder
    • Replies: 9
    • Forum: Boilers
  7. S

    Unvented cylinder/shower valve

    Hi All I had an unvented cylinder fitted about 6 years ago. It only supplies hot water to my shower. I was hoping for a much better flow rate from the shower but it seemed no different from the original combi boiler hot feed. There is (unusually) a lever that lets me select the combi or the...
  8. P

    Isolating hot water supply - indirect unvented cylinder system

    Hello, I am fitting new taps and a shower mixer in my en-suite and was looking to isolate the hot water pipes. I have an unvented indirect heating system (have attached some photos). I was wondering if the isolation valve that would shut off the water to the hot water taps is as circled in the...
  9. P

    Unvented Cylinder Recommendations

    Hi all, looking for some recommendations for a slimline indirect unvented cylinder to go with a new system boiler that we're having installed soon. Only need around 120/125 ltr for our usage and could possibly make do with 100. Been looking at a few different brands including the Megaflo which...
  10. M

    Unvented cylinder blowoff termination?

    Hi all. Any advice for what’s best in this situation please? Blowoff from cylinder comes out where the green circle is but I’m concerned about the windows below if ever it discharges. To the left is a garage felt flat roof so it can’t go on there? Cheers
  11. R

    Unvented cylinder no cold water to multiple outlets

    Hi, I’m having issues with cold water to multiple outlets. Taps, showers, toilets cold water is fine at the kitchen sink. The hot water system is a Glenhill unvented cylinder. Hot water is fine at all outlets. I assumed the cold outlets not working were from the balanced cold from the...
  12. N

    Draining an unvented cylinder

    Hi, According to the regs, can I (homeowner/DIY-er) drain and refill an unvented cylinder myself, or does that require a plumber with G3 cert? Cheers
  13. Z

    Thoughts on Prostel unvented cylinder horizontal

    Just looking at getting an unvented cylinder. Screwfix do an RM cylinder called Prostel. Anybody had experience with these. £830 for 250l horizontal.
  14. dave100

    New unvented cylinder / Replace old vented cylinder and add a ST pump?

    Hello, I am renovating a small bathroom in an apartment on the 5th floor. Heating is electric, no gas or oil. I have four (related) questions about this below. I had intended to reuse the cold water tank and the cylinder sitting underneath it but my plumber suggested I replace the cylinder as...
  15. Z

    Unvented cylinder in loft pump on landing, any problems

    So after having engineer drawings back I'm limited to around 90cm of loft height. I was thinking of a preplumbed horizontal cylinder. But now wondering if a pump and zone valves on the landing in a separate cupboard with just the cylinder flow return going to the loft. Is this an ok idea of...
  16. A

    Can unvented cylinder discharge be connected to this overflow?

    Hi, I'm looking to install an unvented cylinder in my property. I initially hired a plumber who expressed interest in the job, but later cancelled, citing "building regulations" as the reason, specifically regarding the discharge pipe and its location. Subsequently, I reached out to my second...
    • aleant
    • Thread
    • cylinder overflow unvented unvented cylinder
    • Replies: 4
    • Forum: UK Plumbers Forums
  17. M

    Unvented cylinder install query??

    Hi guys. Is there any reason you can’t can’t downsize the hot water draw off from 22mm to 15mm straight away? Other than the flow rate being affected would there be any other concerns? Cheers
  18. Z

    Preplumbed horizontal unvented cylinder

    Anyone know of preplumbed horizontal unvented cylinder apart from the Telford Tempest. My plumber has said they save a lot of time but he's fitted gledhill vertical before I think.
  19. Z

    Unvented cylinder with heat only boiler??

    I'd like to install an unvented cylinder in the loft. With limited headroom it would have to be horizontal. I want to keep my existing valiant condensing boiler. I currently have a vented set up. A couple of plumbers said this could work. Will the feed and expansion tank for the central...
    • zaceverett
    • Thread
    • boiler cylinder heat unvented unvented cylinder
    • Replies: 10
    • Forum: Boilers
  20. D

    Unvented cylinder with water softener

    Is there a definitive answer to this? We have a stainless steel everflo unvented cylinder hooked up to a Worcester Bosch boiler, and are thinking of getting a water softener as were in quite a hard water area. I've looked around, but can't seem to find a clear answer as to whether a water...
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