Search the forum,

unvented cylinder

No Wikipedia entry exists for this tag
Recent contents Top users
  1. Rakesh

    Gledhill light unvented cylinder imploded

    Hi everyone, Hope someone can shed light on this problem. I’ve been and changed bath taps For a client by first isolating the cold mains. I then opened the kitchen mixer tap to drain both hot and cold water and while that was draining, I went into the bathroom and opened the separate hot and...
  2. A

    Megaflo unvented cylinder drip

    Hi there. I have noticed a drip on the primary flow pipe going into the tank. Not sure what could be causing it. It seems to happen when the heating and hot water are off. Have attached a photo. It comes from the top and runs down the pipe. No dripping in the tundish and we replenished the air...
  3. R

    Advice please on an unvented cylinder

    Firstly hello, i did a quick search and wasn't sure whether this should be in here or the central heating section so if i've got it wrong i apologies! We are looking to replace our current vented system with an unvented indirect 210l cylinder to replace the current pump used for two deluge...
  4. B

    Unvented cylinder relief valve letting by

    Posting here as the unvented G3 forum does not let me post. I am hoping someone could apply some logic and help me with a problem that two plumbers have not been able to diagnose properly. Details : Unvented system. Incoming mains with prv set at 2 bar. Plumber has checked this at ktchen...
  5. D

    Unvented cylinder with no system boiler?

    our client does not want a gas fired system boiler but he wants to keep his hot water storage. Its currently open vented via an old back boiler. The back boiler has been removed and electric rads installed So can we install an unvented system without a gas boiler? The cylinder to have x2 3 kw...
  6. D

    Unvented Cylinder Expansion Vessel - advice sought

    Hi, I am a homeowner, I had a new unvented cylinder (OSO DC 300) fitted in August, and had a small problem yesterday with the pressure valve dumping water and making a lot of noise. Eventually this was resolved. However, during my conversations with plumbers it appears that I have a red...
  7. L

    Hot water cylinder? ______________

    Hello, I'm not a plumber but just curious as I'm an electrician who's coming towards the end of a rewire, The house is a new build out in the sticks. Originally the plan was to have a oil or gas fired boiler supplying CH and UFH, due to cost issues he has decided to install a unvented indirect...
  8. T

    Unvented cylinder size for 6 ensuites

    Guys, I and another 3 engineers are perplexed. We have a 4bed 4floor house being turned into a 6bed HMO. We've calculated 45k btu for htg, and know that we are goin to have a system boiler and 300l unvented cylinder.. But 300l surely won't be enough water should, theoretically, all 6 showers...
  9. T

    USA Unvented cylinder - water pressure

    Hi, looking for advice about unvented cylinder. I had one installed as part of a horrific modular loft conversion that was recently finished. The water pressure in the bathrooms is poor, probably worse than when just had combi and I cant use two showers/bathrooms at one time which was the point...
  10. DGT plumbing

    Best unvented cylinder

    Opinions please unvented fitters, what do you think is the best unvented cylinder on the market. I am G3 registered before you ask.
  11. Stants

    Pipe size for unvented cylinder and boiler

    hi I have an issue with running pipes ( the route )for a boiler and and unvented cylinder 1 can you combine bother together ( t one into the other) 2 if so what s the minimum pipe size for both ? As I have to either go over , under or dare I say through a steel .... it's in a loft Con Thanks
  12. K

    HELP: Pressurised/Unvented cylinder - No hot water, central heating works fine

    Problem: No hot water from unvented cylinder, although central heating works fine. Hi All - apologies for the lengthy post but I'm keen to get across as much detail as possible. I'm a novice, any advise would be really appreciated. Setup: Pressurised/unvented cylinder (Tempest) System Boiler...
    • KingK
    • Thread
    • central central heating cylinder heating help hot hot water megaflo no hot water unvented cylinder water works
    • Replies: 30
    • Forum: Plumbing Jobs | The Job-board
  13. O

    New heating system: 4 bed,2 bathroom, UFH/radiator mix

    Hi We are getting new heating installed. Likely go with Viessmann - looking for set and forget, high efficiency, high comfort level, weather comp heating with high modulation ability x20 levels from 1.6kW to 35kW -- Question is, what to choose: system boiler + unvented cylinder (180 litre), or...
  14. Inverness

    advise on flow and return points unvented cylinder compared to the height of the header tank

    Hi guys, before I go ahead and install a indirect cylinder. The problem is in the loft where the flow and return points on the cylinder are similar height less than 0.1 bar to the header tank. I'm worried about there might not be enough head from the top of header tank to the flow going into...
    • Inverness
    • Thread
    • advise cylinder flow flow and return head header header tank height points return tank unvented unvented cylinder
    • Replies: 6
    • Forum: Plumbing Jobs | The Job-board
  15. X

    How to drain only hot and cold feed to a bathroom which is on a drop from an Unvented cylinder.

    The system has an unvented hot water cylinder which heats the water upstairs (via an immersion heater) and I need to drain down the pipes so I can move the two pipes feeding the sink in the bathroom. There are two showers (on a separate drop) one bathroom (on it's own drop) and one sink...
  16. finchy01

    Unvented cylinder D2 pipework

    Morning all. I'm quoting for a conversion from vented to unvented (I'm g3) a d the customer has said that she has been told that the d2 can go into normal waste pipe with a special connection. I was under the Impression that D2 pipe should be of copper material to the outside of the property...
  17. leelister6

    Unvented cylinder in cellar

    Hi all. Just been to look at a job and customer wants the boiler relocating to the cellar. He wants an unvented cylinder (I'm G3) also in the cellar, the only problem would be D2. Obviously can't discharge uphill so what are the alternatives? Property has 1 bath, 2 mixer showers, 3 basins and...
  18. pmplum

    OSO unvented cylinder

    Hi I have customer with a 330 litre OSO Invented cylinder with water coming from the cold water expansion valve. My question is these cylinders have an internal expansion “bubble” , can they fail ? Tried draining it and refilling to recharge the bubble Checked hot ware temp and it’s at 60...
  19. C

    Indirect Unvented cylinder, Combi Boiler and Nest Thermostat

    We have just had an indirect unvented cylinder (250l Vertical Telford Tempest) installed along with a nest v3 thermostat. The plumber was able to modify our existing combi boiler, so it runs like a system boiler. I am trying to understand how it works as currently the plumber has set it to come...
  20. plumb_know

    UNVENTED CYLINDER & LOG BURNER

    Hi Everyone, had a customer enquire about installing twin coil unvented cylinder with log burner supplying one coil to make use of heat from burner. I have seen some threads where people say this can be done but would have to be indirectly supplied from thermal store with open vented heating...
Creating content since 2001. Untold Media.

Newest Plumbing Threads

Tiling Tools
Electrical Forum for Electrical Advice
Contractor Talk
Electrician Talk Forum
Tilers Forum
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock