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  1. A

    14,15mm pipe for central heating

    Hi guys. A couple of things. 1 am I better fabricating bends in 14 mm copper for my ch or are 90 degree elbows fine, ref flow, friction ect. 2 my ch boiler, non condensing is playing up, I can get hot water, but when heating is on pipes only get hot for 1st mtre or so? I can hear feel the...
  2. paulusgg

    Low loss header in a central heating system

  3. P

    Oil fired central heating boiler issue ?

    Hi, Over the past few months, my wife and I have noticed a constant pulsing sound throughout the house which is particularly noisy at night (this could be as a result of us noticing the sound more when there is less environmental noise). Unfortunately, it is severely disrupting our sleep, so we...
    • pbn2774
    • Thread
    • boiler central central heating heating
    • Replies: 4
    • Forum: Boilers
  4. B

    What is the problem with my oil central heating system?

    Context for issue: Last winter the temperature switch on my boiler shorted somehow, the boiler was then running WAY too hot and ended up blowing/melting a hole in one of the pipes. I repaired this by putting in a new stretch of pipe in and just connecting it to the existing pipes with two...
    • Butchy10
    • Thread
    • central central heating heating heating system system
    • Replies: 6
    • Forum: Boilers
  5. B

    What is the problem with my central heating system?

    Context for issue: I'd like to start by saying I'd rather not read 100 "Hire a professional comments", I will do that when/if it comes to it, but I'd like to do it myself if possible. All images for system here: https://*********/a/ngPQkre Last winter the temperature switch on my boiler...
    • Butchy10
    • Thread
    • central central heating heating heating system system
    • Replies: 0
    • Forum: Central Heating Forum
  6. R

    Strange central heating

    Hello its my 1st post hope im in the right place We brought a new house a medium-large 3 bedroom semi, we moved in the summer. Now coming to winter we started putting the central heating on. The central heating has a mind of its on it’s really strange iv never experienced this We put the heating...
    • Richard smith
    • Thread
    • central central heating heating
    • Replies: 1
    • Forum: Central Heating Forum
  7. I

    Central heating cleaner removal

    Hi, Can anyone offer me advice, I’ll try and keep it short! Just cleaned my magma cleanse unit, and it wasn’t too bad since last boiler service 1 yr ago. I have had a blockage in a microbore pipe which has been cleared. For piece of mind I thought it would be a good idea to add some MC3+...
  8. S

    central heating unvented losing pressure

    Can central heating / gas engineer expert help me with below issue. During winter time only, I have been having issue with low pressure or pressure dropping with unvented hot water cylinder system. During summer time there is no usage of central heating so the pressure at unvented system is not...
  9. W

    Can I have single zone central heating when pipe installed for 2 zone?

    A bit of clarification - I have extended a 3 bedroom semi detached and at the time central heating pipes were going in I told the plumber could I have 2 zones - one for bedrooms upstairs and another for the living areas downstairs. Now the plastering has been finished and I am costing the combi...
  10. R

    Replaced Central Heating Pump - still have issue

    I have a conventional system, Potterton Prima Boiler, into a Pump into a Motorised Valve that feeds the Radiators and/or the pipes in the Hot Water Cylinder. Analogue Controller with slide switches (replaced 2 years ago) and analogue Room Stat and Hot water cylinder Stat. I'm just an amateur...
  11. K

    What could be wrong with central heating?

    Hoping for some advice as I seem to be hitting a brick wall. Moved into a house last year, radiators down strairs (4 of them) never really got warm, replaced the combi boiler this year as it was loud and leaking (its in the loft which has been converted into a room). Since turning the heating...
  12. J

    Blockages in 10mm plastic central heating pipes

    Our house was built in 2007 and we are the second family to live here - moving in in 2017. The central heating has been working fine - although the gas boiler is perhaps nearing the end of its life. But the boiler is not our current issue. Last winter two of the radiators did not heat up and...
  13. D

    New central heating - what should I be asking for?

    We live in a 1980s four-bedroom detached house. The time has come for new central heating. The current system is a mild revision of the original heating installed when the house was built, and this revision was largely to replace a life-expired boiler: non-condensing fan flue boiler open...
  14. A

    Central heating rads

    Hi all, My property is a 3-bed terraced with double glazing windows... It currently has no central heating, so I will get a new combi fitted shortly... However, I will be putting in the central heating. My question is, is it still necessary to have a lockshield on the hall rad? I assume that...
  15. G

    Control System for 3 zone Central heating?

    HI folks, this post is a follow up to my post relating to my single pipe heating system. In summary, I have a house built in 1980 (I bought it 2 years ago) that had a single pipe heating system but over the years there have been some changes made to the system that meant it didn't work. I have...
  16. L

    Hot water only works when central heating turned on too. Why?

    Hey everyone, I'll keep it short. Had our old system boiler replaced with a new Ideal system boiler set up. Then the problems began. First issue was the pump went faulty, so the pump was replaced. This then led to a new issue coming up where the central heating would work, but not the hot...
    • Leo Ismail
    • Thread
    • central central heating heating hot water water
    • Replies: 2
    • Forum: Central Heating Forum
  17. G

    Central heating pipe layout

    Hi. Hoping someone can advise. My heating system has 19 radiators. 13 downstairs and 6 upstairs. The downstairs layout has 3 loops with feed and return. The first loop has 3 radiators, the second loop has 7 and the 3rd loop has 3. All 3 loops return to the boiler via the main 22mm pipe...
    • Gary Clark
    • Thread
    • central central heating heating pipe
    • Replies: 2
    • Forum: Central Heating Forum
  18. D

    Limescale cleaner for central heating

    Hi Where I am living the water is very hard. The result is my heat exchanger most likely has accumulated limestone. The problem is that due to the limestone accumulation the boiler is cutting out at high temperature, thus not having the possibility to transfer enough heat to the radiators. Is...
  19. Ticking sound

    Central heating clicking noise. New install

    New install, under a year old. Boiler downstairs. Mega flow upstairs in airing cupboard. Undfloor downstairs. Rads upstairs. Whenever the heating comes on. I get a clicking ticking buzzing type sound. Please see videos. Coming I think from the metal boxes. Both upstairs and down. I believe...
  20. J

    Central heating on if water is on

    If the hot water is on, hot water is running round the CH system, even if CH is switched off. Vaillant tell me that you control the temp of the HW at the tank. And indeed I can’t adjust the water temp at the boiler. But if I increase the temp of the CH, the HE gets hotter. Also, if I turn...
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