central heating

  1. happydays129

    Central heating pump leaking

    Dear plumbing and central heating gurus, Good evening. I recently noticed that underfloor heating pump is leaking. The heating is working. Due to the leak, boiler pressure keeps dropping. See the photos where the rusty water dripping through. I am wondering, for fixing the leaking, do I need...
  2. M

    Central heating installation HELP!

    Good afternoon all, I am soon to have a new combi boiler fitted to provide central heating and hot water (currently just have an old hot water boiler). I am in the process of fitting my central heating system pipe work, and I am hoping for some advice. I have drawn up a picture below of what...
  3. D

    Position of pump in sealed multizone CH system

    In a sealed multizone CH system, does it matter whether the pump is between the pressure vessel and the boiler or whether the pressure vessel is between the pump and the boiler? (On the hot side in all cases) I know it matters in an open vent system but not sure in a sealed system. Thanks in...
  4. T

    Help: humming noise once the motorised valve is closed

    I wanted to reach out regarding a peculiar issue I've been experiencing with my heating system, and I'm seeking your expertise for guidance. I have a combi-boiler located downstairs, with the tank and motorized valves situated upstairs, specifically two zones and hot wanter. Recently, I've...
  5. T

    All radiators won’t get hot together

    All my downstairs rads come on together but upstairs won’t at all. Then when I turn all of downstairs off at the lockshield valves then I can get each rad upstairs to get hot but then when I turn the lockshield valves of downstairs back on the upstairs rads go cold again, has anybody any...
  6. D

    Perforated cylinder coil, F&E tank overflowing (Ed.)

    Hi everyone, About a month or two ago we noticed that the F and E was overflowing quite a bit. We also had some rusty coloured water. I can see now from research that this would naturally point to a hole in the coil. I had a plumber out, who I wouldn’t use again because he seemed completely...
  7. G

    Central Heating won't come on at all or needs HW on!

    We have a regularly WB boiler (with a Megaflo for HW, 14 rads mainly with TRVs and Wiser controls) and are having 2 distinct problems. Firstly, must add that following a misdiagnosis by BGAS about 3 months ago WB came out to check the boiler and it was fine then - it was subsequently serviced...
  8. RhysM96

    Thermostat change

    I am currently redecorating and the thermostat in my property looks ancient and yellowed. I found a nicer looking one, not too expensive on Amazon and wondered if the current wiring( Black,Brown,Grey and Ground) are compatible and in which way it should be wired. Thanks
  9. andyr123

    which is the best F&E System between these 2 Systems?

    Hi all I am just wondering which setup do plumbers/heating engineers like the best out of these 2 systems with CH header tanks in the Loft? - and is one better than the other or do they both work as good as each other , any caveats with either? *Diagrams not - no-where near - drawn to scale...
  10. M

    Drayton Wiser Wiring from ESI

    Switching from an ESI ESRTP4RF+ to a Drayton Wiser with a Worcester Combi boiler (single zone/one channel) The current wall plate wiring looks identical to the Drayton Wiser scheme, but just wanted to check if it would be plug n play. Attached photos of current wiring on wall plate. I...
  11. R

    Froststat is wired to permanent live, from the boiler switch, is this right?

    Hi, May I seek advice? House/boiler is mid-90's. I am updating my froststat (it physically broke internally and has been firing up boiler inappropriately) and I have found that it is on a PERMANENT live feed (on voltage checking) despite the boiler switch overriding its effect, (ie fully...
  12. S

    Central Heating Not Kicking in at night

    Hi All, Having a couple of issues with the central heating which I want to clear up before the temperatures drop. I run the CH via a thermostat. It’s set for 18.5 degrees and in the day it runs absolutely fine, if it drops below, the flame symbol comes on on the thermostat and the boiler fires...
  13. S

    Unvented central heating losing pressure only in winter

    Hello there Can expert help me with the problem of unvented hot water( mega flow) with two expansion valves and pressure gauge losing pressure only during winter when I turn on the central heating. I have got gas boiler Worcester installed. I could see two radiators always have gas or no water...
  14. D

    CH not firing after rad bleed

    Right so this is a long one so do bare with me ! Im not gas safe but i am a multiskilled engineer so have rough knowledge when it comes to heating and plumbing etc. So my radiator brackets was coming off my wall so today i valved off the rad and removed it from the wall and refixed the...
  15. A

    No HW OFF Y Plan

    Hi all, I currently have a Y plan heating system that previously had a Hive dual channel system installed. I had Nest installed recently but it has been giving me problems so I wanted to revert back and as the old wiring was there, I thought it might be straight forward. The Hive receiver was...
  16. D

    epoxy coatings and pipe liners to seal and restore your copper pipes while they are still inside your concrete slab

    Hello, we are looking to buy a 1970s built bungalow. The neighbour not our semi detached neighbour, an ex plumber, advised he had removed the boiler to the loft and replaced all the central heating pipes as originally they were copper pipes under (within?) the concrete flooring. A neighbour...
  17. M

    Microbore - basics for a newbie

    Hi all, I moved in to a 90s house recently and want to start doing some decorating etc. The house has microbore piping to the radiators and it is not something that I know anything about really. Through my father in law (who knows much more about plumbing than me) and a bit of googling, I...
  18. M

    System boiler system - how does the system top up after loss of water?

    Hi all, Apologies in advance if I get any terminology incorrect. I moved into a house about a year ago with a system boiler. I've always lived in houses with a regular/conventional boiler system so I'm still getting my head around how a system boiler works. I'm looking at doing some...
  19. R

    Replacing lockshield on bathroom heat leak radiator

    Hi all, I need to replace a 3/4" union valve lockshield with a 1/2" on a bathroom heat leak radiator. Usually I bung the header tank, release pressure, and quickly swap the valves over. However, as its an old school heat leak setup I'm unsure if I need to adopt a different approach due to the...
  20. K

    Stuck motorised valve on CH

    I have two Honeywell 2-way motorised valves (1990 vintage) in my airing cupboard, one for CH and the other for hot water. The CH valve got stuck in the open position. I investigated best i could, took the cover off and managed to shift it by pushing gently in one of the brass cogs with a...
Back
Top