Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

central heating

Recent contents View information Top users
  1. panda_96

    Bleeding air from Central Heating System

    Boiler is making a gurgling sound and keeps short cycling. I believe there is air in the the system and I've already bled all the radiators. This is the pipe leading into the water cylinder, is it where I should be bleeding the air from?
  2. B

    Ever had Central Heating Water leak INTO Cylinder fresh water ?

    Hi, Vented system, F&E Tank etc. Cylinder about 10-12 years old. Just running some x800 through to try & improve radiator heat. (another story) Been in a couple of hours. Just run a bath & the water has a slightly odd brown'ish tint to it. never had before. does not smell. Is there anyway it...
  3. B

    Central Heating cuts out when DHW reaches set temperature

    Hello, I hope someone can give some advice with this problem. I have a Vaillant ecoTec plus 418 with Drayton MA1 mid-position actuator, Drayton HTS3 cylinder stat, Honeywell DT90E room stat and Drayton LP522 controller. Boiler fires up reliably, but after it cuts out as soon as the DHW...
  4. T

    Central heating room thermostat replacement

    Hi all, I have a simple mechanical Honeywell wall thermostat (i think you call it a 2 wire). I want to replace it as it is a bit old and unsightly and seems to have a lot of "play" between on and off. I could obviously easily replace it with the same thermostat or a very similar one, however i...
  5. M

    Central heating switches off

    Boiler is working but out the blue is goes off. Controller is working, receiver is working, can see it clicking and red light flashes when I move thermostat up and down. If I override hot water, boiler fires up but nothing for heating. Boiler is Worcester Greenstar, 2 yrs old. Brand new...
  6. D

    Grundfos noisy oil central heating

    Hi. We have a wolf oil central heating system, with a grundflos alpha 2 circulation pump. Sometimes it makes a tinkle noise ( like metal to metal) and sometimes not. With and without burner running. I removed pump and impeller is ok and clean. Bled system through. Nothing helps.
  7. G

    Help please! Issues with Central heating & Hot water

    I will start by saying I am not a plumber but I have learnt loads thanks to people on here. I am currently having an issue with heating & Hot Water. It is working but I have to do certain things to make it work each day. The question is about the 2 gate valves in the picture. Valve number 1 and...
  8. N

    Dual zone central heating query

    Hopefully a quick question: I have bought a new house and had a few issues with the CH system (they connected the valves for the two zones to the wrong thermostats which has now been fixed) but have now come across something that doesn't make sense to me. I have a downstairs cloakroom (toilet)...
  9. A

    Understanding gas central heating system

    Hello everyone, We have recently moved to the UK, so really don't know much about gas central heating and boilers over here etc. So this is probably a very basic question but I just don't know! We are moving to a house later this month. It has a "wall-mounted gas-fired boiler for domestic hot...
  10. S

    How to test central heating pump?

    Happy New Year everyone! I need a little help on figuring out what's wrong with my central heating (CH) system. I'm in a new house, and I know the system has a single motorised diverter valve for hot water and radiators (rads). Problem is almost none of my rads get hot, except for 2 or 3 that...
    • Sam Wain
    • Thread
    • central central heating heating pump
    • Replies: 6
    • Forum: Central Heating Forum
  11. Desktop987456

    Pipework advice - Central Heating System

    I have a 320 sqft double storey house with 6 bedrooms. The house is serviced by two heat only boilers (non condensing); a 120k btu (35kw) and a 70k btu (20kw). Both Boilers are installed at ground floor (120k at front and 70k at the back). Front boiler serving front downstairs and upstairs rooms...
  12. D

    15mm pipe run from central heating manifold query

    Hi Guys Im aware the say you should keep 15mm runs supplying radiators to 12 metres. However if running one rad from a manifold, how much can I get away with? Im not holding a gun to your head. One of my runs has to be just over 13 meters. Thanks in advance. Donkey.
  13. T

    Drain Central Heating System- when is it safe to switch Boiler back on

    Drain central heating system (water tank in loft) in a two storey house - ground and first floor when is it safe to switch the boiler back on - is it only when the tank in the loft has stopped making a noise - implying that the system is back to where it was before the system was drained. The...
  14. 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?
  15. 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...
  16. 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?
  17. 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
  18. 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...
  19. 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...
  20. 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

We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.

Featured Content

Back
Top