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cylinder

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  1. B

    Do I need a washer for blanking plug in a copper hot water cylinder?

    Hi all I'm blanking a couple of openings in a hot water cylinder. The Screwfix Flomasta 1" BSP plugs fit perfectly but no washer supplied or listed. Given that the element has a washer and everything else is a compression fitting I'm concerned these should have one. The alternative is PTFE...
  2. T

    Should I Replace Hot-water Cylinder?

    I have a vented hot-water cylinder that was installed when the house was built - 38 years ago! It has a header tank in the loft and the cylinder is located directly above the ceiling of a new and expensive kitchen. It does not leak and causes no obvious problems. Should it be replaced? Advice...
  3. F

    Heating Possible conflict between Ideal boiler and Gledhill cylinder

    My heating system comprises an Ideal Logic 12 boiler located downstairs and a Gledhill OV SOL cylinder located upstairs . The problem is that when the Gledhill controls for the “hot water” and “central heading” are turned on the Ideal boiler makes a constant “clicking” noise and tries to start...
  4. RenzoPan

    What is the pressure in this cylinder expansion vessel?

    I was told by the plumber to keep an eye on the pressure, to ensure it stays above 1.0. The red one is… but the black one is not…. What do the two mean?
  5. 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...
  6. nashant

    Vibration when first opening hot tap after u/v cylinder heating cycle

    Hi all. As the title says, I have a problem with an unvented cylinder I had installed last year where the first time I turn a hot tap on after the cylinder has been heated I get what sounds like a vibration. It generally starts about 1s after I open the tap and lasts for about 1.5s. I've...
  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. chris020

    Hot water cylinder circulator

    After some advice, i have recently had solar panels fitted and have an Eddi which uses the energy we generate to heat the cylinder using the immersion heater. Just wondering if there are any devices that can circulate the hot water in the cylinder so the immersion heater heats all the water...
  10. J

    Is Pressure checked at same time of hot water cylinder repair

    Hello, hoping someone can advise me. My boiler stopped working - no hot water or central heating. Called out a company who came and assessed the problem as being that the hot water element in the immersion tank needed replacing. (I don't know exactly what it is called as the company has still...
  11. J

    Direct Hot Water Hot Water Cylinder Repair

    Hello, hoping someone can advise me. My boiler stopped working - no hot water or central heating. Called out a company who came and assessed the problem as being that the hot water element in the immersion tank needed replacing. (I don't know exactly what it is called as the company has still...
  12. J

    Cylinder System not running heating and water at the same time

    Hello, Newly moved into a house with a mains fed cylinder system. I've never had one before and struggling to get it working. When I turn either heating or water off at the timing unit, the other works fine. Eg, with heating off, water works and vica versa. The indicator lights are solid blue...
  13. I

    Heat pump cylinder in outhouse in Scotland

    My landlord's great at getting all the Scottish government funding that's going, and there's full insulation, double glazing, an airsource heat pump and a Mitsubishi Ecodan unit. The Mitsubishi installation manual says in big letters "The cylinder unit MUST be located indoors and in a frost free...
  14. H

    Constantly losing hot water pressure from Direct Vented Cylinder

    Hi, I have a hot water cylinder which feeds 3 outlets (kitchen sink, basin in bathroom & bathtap) which has never had very good pressure (probably because of the set-up) but last year got so feeble that a guy suggested fitting a pump alongside the cylinder. This can work fine but then all of a...
  15. 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...
  16. L

    air lock in hot water cylinder coil?

    Hi all. Ive had to replace the pump isolator valves as they were leaking. All done and working but struggling to get air out. Rads are all good but when the boiler starts and stops there is odd sounds but mainly coming from inside the HW tank, sounds like water falling so im guessing air in...
  17. Z

    Hot water cylinder leaking around joint with hot water inlet

    I'm trying to remove the zone valve ion vented tank and the tank started leaking around the joint. I was hoping to just run the tank with immersion till I can get an unvented. Any tips to stop leaks or do you think I need to buy temporary tank. Any help appreciated as I'm without hot water now.
    • zacwithleak
    • Thread
    • cylinder hot water leaking water water cylinder
    • Replies: 2
    • Forum: UK Plumbers Forums
  18. 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...
  19. B

    electric shower vs. mains from dual cylinder submersion heater

    Hello, and thank you for reading. My partner and I have just purchased our first property that came with a dual cylinder electric water heater, and an electric shower in the bathroom. As it happens, the shower needs replacement, and we were thinking of removing the electric shower (Mira Sport)...
  20. T

    Improvements for pre-lagged DHW cylinder

    I have a factory lagged indirect hot water cylinder in the airing cupboard, installed about 2002. The control thermostat is fitted near the bottom of the cylinder and the primary circuit connections are near the top and bottom of cylinder connected to a gas fired boiler. This results in nearly...

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