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  1. dilligaf

    Grundfos Central Heating Pump Weak?

    Do central heating pumps lose their strength over several years and is it worth taking it apart and servicing it? Are the two seals either end 1 1/2 inch or 1 1/3 inch? What's the latest central heating pump should I need to replace mine (photo) like for like?
  2. G

    Central Heating noise on ignition and when turning off

    Hi, thx in advance if anyone has any ideas I've got a Worcester Bosch combi with Hive thermostat. Whenever the central heating turns on I get a beep like a gameshow buzzer, and then little rumble. Does the same when turning off. Never does this for just hot water. I had British Gas come out a...
    • GL7781
    • Thread
    • central central heating heating noise
    • Replies: 0
    • Forum: Central Heating Forum
  3. Chris-H1711

    nest thermostat not activating central heating

    Good Morning. I've been having an issue for a couple of days, that my nest thermostat is demanding heat, but the boiler does not activate. However, when using the heat link manual button, the heating works fine for around 2 hours. I have recently replaced the pump from a wilks gold rs50 to a...
  4. dilligaf

    Central Heating Filter??

    Can anyone tell me if I have a central heating filter? I have a glow worm micron 30ff with a tank in the airing cupboard and a tank in the loft. I know there is a Grundfos pump but I cannot see a filter?
  5. 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
  6. E

    Central heating doesn’t start heating for about 45 mins

    Hi, Been having a problem with our heating for a few weeks now. Heating is set on our Boilermate 2000 to come on at 5:15 but about 15 minutes later the radiators are still freezing cold with a small warm bit at the top. Another 15 minutes later and then it feels like hot water begins pumping...
  7. R

    advice on how to flush out the pipes on my central heating system.

    I need advice on flushing out my central heating system. Lower two floors underfloor, top floor radiators. Oil fired system
    • Robin Overall
    • Thread
    • central central heating flush heating heating system pipes system
    • Replies: 0
    • Forum: Central Heating Forum
  8. C

    Issue with oil fired central heating

    Hi. Currently experiencing an issue with our oil fired central heating system. When CH/HW is switched on, the central heating does not always work - the hot water does however without fail. We had the timer set to come on last night but alas, only the H/W came on. After a couple of hours of...
    • CarlMc
    • Thread
    • central central heating heating
    • Replies: 0
    • Forum: Boilers
  9. C

    Temperamental Central Heating

    When putting our CH and HW on, it’s sometimes a lottery as to whether the central heating will come on. The HW works every time with no problems. Furthermore, when the CH does come on, sometimes only half of the radiators in the house come on - when this happens, we switch CH/HW off and switch...
  10. R

    Grant Vortex 21 - lukewarm water but hot central heating

    Evening everyone, We've been having some issues with hot water coming from our Grant Vortex 21 boiler (external, oil fired, no cylinder) Water has been getting progressively colder over the past couple of months to the point where the little one struggles to have a bath. The hot water pressure...
    • RKvega
    • Thread
    • central central heating heating water
    • Replies: 1
    • Forum: Central Heating Forum
  11. V

    Central Heating - Blocked 22mm return pipe?

    Hello all. I've just joined, was going to post in the new members forum, but the first site generated email sent me here... I am here, as have a challenging and interesting problem, which I'll try as best to describe below keeping to the point and as short as possible, to avoid boring any of...
  12. H

    install new central heating system

    Hi All, I am very new to all this so forgive me if I am lacking alot of knowledge. Aiming to install a new central heating from scratch. Property details split over 3 floors 4 bedrooms 2 bathrooms open plan kitchen/lounge Current Installation assumptions install 8 rads in total running off...
  13. J

    Viesmann Vitedans 100-W 35kw Boiler : Central Heating not working

    New Boiler - Viesmann Vitedans 100-W 35kw Boiler Problem - Central Heating not working Central Heating is controlled by HIVE. Boiler was installed couple of months back. New radiators were installed as well. We never swiched on central heating until yesterday night. In the last 24 hours I...
    • jananjay
    • Thread
    • boiler central central heating heating
    • Replies: 11
    • Forum: Boilers
  14. C

    Can I add a small electric boiler in parallel with my central heating?

    Hi, I would really appreciate some advice on a proposed change to my central heating circuit. I am able to divert excess electricity from my recent solar PV installation to one (or two) hot water tanks and I would like to plumb in a small hot water tank in parallel with my central heating...
    • Catephatic
    • Thread
    • boiler central central heating electric heating
    • Replies: 17
    • Forum: Boilers
  15. ronnierome

    Hi All, needing help on my daughters central heating.

    Hi thanks for letting me join, if someone cant point me in the right forum area to try help my daughter out in her first house before the cold weather hits too bad. cant seem to get anyone to visit and sort it as its an electric boiler, so electrician wont touch it as its water and plumber wont...
  16. D

    Central heating programmer and thermostat issues

    Hi, We moved into our house last year and our current central heating set up is: Boiler: Vokera Mynute HE system boiler Thermostats: 2x Robus RRF10 analogue thermstats (one in hallway and one in master bedroom) Programmer: Anaglogue Flash Immermat Timer Clock. When we came into the house...
    • David Fernandez
    • Thread
    • central central heating heating thermostat
    • Replies: 2
    • Forum: Central Heating Forum
  17. AndyCoo

    Central mixing valve near unvented cylinder

    Hi all I have a mixing valve question. Should I have one fitted close to my new unvented cylinder?
  18. E

    Central Heating circulation issue

    Hello i recently converted heating system from old stove to grand vortex b house 90 , boiler runs and works fine . How ever i have issue with water circulation have installed new pump but for some reason water don't circulate at all . what are the possible cause ? i have pump installed on return...
  19. J

    Problems with small bore pipe and an old central heating system

    The small bore pipe to 4 radiators was completely clogged up. One radiator stone cold , others barely luke warm. Those plumbers that bothered to quote said ‘power flush’ but would not guarantee any success. So I tackled it myself, ripped up the floor boards and traced back the small bore that...
  20. D

    Central Heating Radiator Use

    Hi, This question is related to a 5 bedroom property, with a radiator in each room. Whereby heating is turned on/off in bursts of 2 hours (2 hours on, 2 hours off). 3 rooms are used constantly and 2 (smaller) are not. Assume the house is well insulated. A DIY family member believes that...
    • Dave Heating
    • Thread
    • central central heating heating radiator
    • Replies: 2
    • Forum: Central Heating Forum
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