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system

  1. jklondon

    Strong vibration foghorn sounds in system

    When we turn on the water first thing in the morning of after a while of non use there is vibration sound that can be heard to different degrees across the house. Its not instant but normally after a minute when the water has been turned off. It doesn't seem to be isolated to a particular...
  2. R

    Undersized System Boiler???

    So I posted a while back regarding my 300ltr unvented cylinder not seeming to keep any volume of water hot for very long. Could it be the system boiler is not powerful enough? I have approx 220m2 of underfloor heating and the hot water cylinder’s . Does anyone know if Worcester Bosch Greenstar...
  3. C

    Is a leak sealer ever a suitable solution for a new system?

    I assume the answer is no, but if this fixes the issue I know it will be what my builders sub contractor plumber will do. Therefore, before he is allowed near the system I would like to either find the issue or eleimnate parts of the system that do nto have an issue. As you will note from my...
  4. G

    Ideal Logic+ System cycling when no HW or C/H demand

    Hi. I have an issue with my Ideal Logic+ System S24 boiler which I hope someone can help with. Below is as much detail as I can think of. The boiler has been running constantly (cycling?) 24/7 for the last few days, during the recent very cold snap and since. HW and C/H are running fine, as per...
  5. J

    System pumping over into F&E

    I'm trying to make sense of a system I've came across. One part that's caught my attention is the position of the pump. The system is pumping over when the stove is lit. As you can see the pump is directed toward a tee heading towards a 28mm elbow which I believe is the stoves return. The...
  6. nigel52

    Underfloor wet system design query

    I have a OMNIE designed wet underfloor heating system on three floors. Ground and 2nd floors work well with those two floors having a single manifold and recirculating pump for the various zones. On the 1st floor the rooms are split over two manifolds each with its own recirculating pump...
  7. F

    Feed and expansion tank/cistern and few general system questions.

    Hi, I've got a leak coming from the loft into a bedroom which I think is caused by water overflow from feed and expansion cistern (see attached one of the photos when I found out the cistern overflowing above the overflow pipe) and one other pipe that has a small drops coming out of it that is...
  8. B

    2 Zone Wet UFH System room temp low.

    Hi, I am using mu UFH for the first time and it doesn’t seems to get the whole floor warm enough let alone the room. (Intalled May 2022). First use this week. It is installed as per manufacturer’s details but seems to have to much temperature drop across the loop approx 25degc. Flow rate...
  9. C

    Combi boiler into existing wood burner system

    My parents house has a wood burning stove that is also connected to the central heating ( they have radiators and used to have an old boiler which they took out and replaced with the wood burner ) so the wood burner can also heat water which can then be pumped round the rads and works fine when...
    • Christopher644
    • Thread
    • boiler burner combi combi boiler system
    • Replies: 3
    • Forum: Boiler Advice Forum
  10. L

    we have an ambirad heating system in our place of work

    we have an ambirad heating system in our place of work. one works perfectly. if you set it to above room temperature it comes on and works fine. the other is as if it's in reverse. you have to set it to below room temperature for it to come on. which as you can guess is pointless. can anyone...
  11. 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...
  12. M

    Recommended pressure bar to re pressurise system?

    Hi, I have a new boiler Ideal "Heat only" 24kw with a new Indirect unvented hot water cylinder and two expansion tanks. The plumber who fitted the system a few months ago told me how to re pressurise the system by opening two valve taps to introduce mains fed cold water to the system and...
  13. D

    Balancing heating system, does it cost more?

    New to the site and looking for help. Recently, I decided to balance my heating system as some radiators where barely getting warm compared to others and after checking they didn't need bleeding, this seemed like the next step. I have balanced the system and all the radiators get hot at...
  14. Jonnyh88

    Help with setting Grundfos pumps.Single Pipe CH heating system.

    I'm trying to get to grips with a system I have inherited as a new home owner. I know that single pipe systems are crap and should be replaced, but that's not an option right now so I have to make sure what I do have is set up correctly. My bills are astronomical - £6-700 a month right now, and...
  15. Husk24

    Most efficient setting for my logic s30 system boiler?

    Hi I have a Ideal Logic S30 System Boiler, and I have always left it on eco setting which is 70 degrees. I have a separate thermostat for my water tank set at 65. I don’t understand the condensing part of the boiler but I believe there is the most efficient settings you can have for this...
  16. G

    Help! - Noisy central heating system – not heating water well ……

    Hello ! I have recently moved into a new house – or rather a 1960s built house. The central heating system looks to be around 10-12 years old Its conventional mains gas boiler central heating system (not a combi) the boiler is an “Ideal logic 18” – with hot water tank in an upstairs airing...
    • Garzie
    • Thread
    • central central heating heating heating system noisy system water
    • Replies: 31
    • Forum: Central Heating Forum
  17. V

    Two pumps on heating system. Imbalance?

    Hello, I wonder is I could ask for some advice please. I have just replaced and only gravity fed boiler with a new Baxi heat only boiler. The system is two pipe and has 17 rads in a long old house. The system is 22mm copper except the last 5 rads which are 15mm. (I know this should be no more...
  18. L

    Advice on weather compensation for communal heating system

    Hello all, We have a Worcester Bosch GB162 100kw boiler in a residential block for the communal heating serving 12 flats. We currently sporadically manually set the boiler's flow temperature (e.g. 60 degrees when not too cold and 70 degrees when cold) on the boiler itself and use a timer to...
  19. B

    Atag IS40 System Boiler Questions

    Hello, Recently moved into a property which has an Atag IS40 System Boiler (2018) with hot water tank. We've noticed that something is continuously running. The flame symbol isn't present on the display, but the boiler is warm to touch and is making a noise. The CH Demand icon (radiator) is...
  20. Z

    Powerflushing a system with a Powermax

    Hello, I have a job with a Potterton Powermax system that is badly clogged up with sludge/rust from several leaks/ignored problems etc. I want to powerlush it to try and solve some of the problems, and I just want to get clear in my head how to go about this. I guess i'll disconnect the...

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