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water cylinder

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  1. J

    Hot Water Cylinder Temperatures

    150 litre cylinder, top 100 litres are heated by a coil (average temp 70C), the bottom 50 litres (or the whole 150 litres in summer) are heated by a solar coil. There are PT1000 probes fitted in numerous places and the HW zone valve is controlled very accurately by a spare output from the solar...
  2. M

    Hot water cylinder recomendations. Is Megaflo the best ?

    Hi All. I have found this forum extremely useful, keep up the good work guys. I was having a conversation with a colleague of mine, he reckons megaflo make the best hot water cylinders but I suspect his bias might be because megaflo dont have an external expansion vessel, which makes it look...
  3. N

    Hot water cylinder for heating

    Hi all, new around here so first a brief intro. Keen diy man with plenty of mech and pipe experience.. We have a good solar hot water system and I'm thinking about using this hot water to supply a couple of radiators. My thinking is that during the day the hot water cylinder should be fully...
  4. M

    Can I use PEX pipes for hot water cylinder?

    UK rules. Can I use PEX/ PCV/ plastic pipes instead of copper, when I replace hot water cylinder? I want to replace old Tribune model with new Megaflo, both are unvented direct cylinder. With new unit comes combination valve and all the bits and bobs. Can I replace existing copper pipes...
  5. M

    Hot water cylinder drain valve.

    Hi all, Looking for some help, I am a complete novice when it comes to plumbing so any help would be appreciated. Today i had to drain down the central heating system to change a radiator valve in the lounge that's leaking which was fine. But just as i was about to fill the system again i...
  6. B

    Dimplex water cylinder question

    I’m asking as a homeowner not a professional. I can’t get a plumber out at present due to self isolation and I would be very grateful for any advice about this. We have a Dimplex unvented water cylinder which has suddenly stopped producing any hot water. For a few days I had noticed the water...
  7. B

    hot water cylinder return valve setting

    h all , i have a faily old s plan fully pumped system with a worster bosch r 18 heat only boiler, the boiler was replaced about 4 years ago had a potterton neta heat before. 16/18 i think, what i want to know it has a gate valve coming from the cylinder back to the reurn to the boiler , what...
  8. F

    Water Cylinder Leaking

    Firstly, apologies if this has been posted in the wrong section. Been reading the forum for a while and had some good advice in the past. I have a Megaflo Eco Unvented Indirect Cylinder that has developed a small leak It is coming from what appears to be a blanking plug on a port that isn't...
  9. S

    Vented Hot Water Cylinder Without Vent Pipe!

    After calling a plumber to look at our leaking power shower he discovered that there is no vent pipe coming off the hot water cylinder . The cylinder is an old indirect vented cylinder heated from the central heating boiler and has a secondary electric immersion heater that is disconnected...
  10. L

    Question on upgrading hot water cylinder

    Hello, I am looking into upgrading various parts of my residential block's heating and hot water system, which serves 12 flats that resulted from the conversion of two adjacent terraced houses. Our current hot water cylinder has 1000 lts capacity, is vented, is heated indirectly through a gas...
  11. F

    Hot Water Cylinder incorrectly connected

    I bought a new replacement indirect vented cylinder and immersion but it turns out that the plumber has wrongly connected it up and needs to rotate it. The water from the radiators is coming out of my hot tap. I have had to switch of the boiler, after it started making a noise and water came out...
  12. T

    Vaillant diverter valve works but not when hot water cylinder is refilled and tap open...

    Hello, I am not going to make any repairs myself on my boilers but no plumbers have been able to solve my issue. I am seeking for help on this forum to find the cause of the issue I face so that I could communicate to the plumber. I tried on french forums since I am from France but I have not...
  13. M

    Horizontal Vented Hot Water Cylinder

    Is a horizontal cylinder (indirect) as efficient as a standard vertical cylinder? No choice but to use use a horizontal but just asking the question to those who have experience ...
    • Marty
    • Thread
    • cylinder hot water water water cylinder
    • Replies: 11
    • Forum: Bathroom Advice
  14. P

    Hot water cylinder making squeaking and running water noise.

    Hello, I am in South Devon and have a Daikin monobloc air source heat pump with HW cylinder which provides CH & HW. Currently CH off and just supplying HW. Once a week (SAT) the system heats up to 70c for sterlistion etc. It has been doing this in almost silence for 3 1/2 years until today...
  15. J

    Hot and cold water leaking from overflow pipes of unvented hot water cylinder

    We have discovered hot and cold water coming out of the overflow pipes of our hot water cylinder. What could be the cause of this?? Thank you in advance for any advise!
    • Joanne Pitcher
    • Thread
    • cold cylinder hot water leaking overflow pipes unvented water water cylinder
    • Replies: 5
    • Forum: Bathroom Advice
  16. S

    Header tank/Hot water cylinder

    Good morning, was hoping someone could tell me the minimum height the header tank needs to be above the hot water (indirect) cylinder. Many thanks in anticipation. Sam
  17. S

    Direct hot water cylinder

    When fitting a vented direct hot water cylinder, does it matter which side the cold feed goes into as long as it is one of the bottom connections?
  18. Michael Groves

    Hot water cylinder smart thermostat

    I’m looking for a Hot Water Cylinder Smart Thermostat. But I want to be able to monitor the tank temperature over time so I can see when the hot water is being drawn off and how quickly it recovers. So maybe recording the temperature every 5 minutes and saving this data. Does such a thing exist?
  19. H

    Hot Water Cylinder Cold Feed

    Hi Forum, The cold feed pipework that goes into the Hot Water cylinder is very hot, I’ve never noticed this before, could someone confirm this is normal or is something wrong? It’s hot all the way up the pipework to just below the combination valve and then a little along the pipework where it...
    • hallra
    • Thread
    • cold cylinder hot water water water cylinder
    • Replies: 16
    • Forum: Bathroom Advice
  20. W

    Time for a new hot water cylinder? (foam cracks and bulges)

    My immersion heater has stopped working (fuse trips when I switch it on). I was planning to check/replace elements myself but having had a look at cylinder, fear problem may be more serious. The cylinder foam is distorted and cracked in two places. The foam bulges out perhaps 1cm around the...
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