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Central Heating Boiler | Boiler - Hot water boiling system​


A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications, including water heating, central heating, boiler-based power generation, cooking, and sanitation.
Central Heating Boiler | Boiler - Hot water boiling system

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  1. P

    Grant Vortex 50/90 oil boiler with open air tube spigot

    Grant Vortex 50/90 condensing oil boiler where the air tube spigot over the fan is not connected to the existing flue, should this be closed off with a Reillo cover plate to stop vermin getting into the open fan motor.If is blanked over will need a further combustion test to confirm adequate...
  2. MilkyBadger

    Seeking Engineer for Vaillant EcoTec 832 Boiler Issue - SE London

    Hello, I am looking for a heating engineer to diagnose and resolve an issue with my Vaillant EcoTec 832 combi boiler. Job Location: Copeland Rd, London. Job Description: Problem: The boiler is not providing heating under normal conditions, although hot water supply is fine. Interestingly...
  3. MilkyBadger

    Why Does Vaillant EcoTec 832 Boiler Only Heat in Chimney Sweep Mode?

    Hello everyone, I'm facing an issue with my Vaillant EcoTec 832 boiler and would greatly appreciate your expert advice. The Problem: Heating Not Working Normally. When I turn on the heating, it doesn’t start. However, I still receive hot water, suggesting the boiler does work in some...
  4. L

    soilid fuel back boiler leak

    I can see the small leak in back boiler, have tried all sorts of products to seal it. have drained the radiators but pressure from water in actual and pipes boiler keeping it wet!! any ideas please to seal, its my only heating.
  5. I

    Open fire with back boiler

    when I removed the back coal saver I can now see the mental back boiler. I could not see the back boiler when I put the coal saver in place last year . Do I recover the metal back boiler in fire cement or is their something better. The fire cement at the bottom of the photo is where I block...
  6. F

    Heating Possible conflict between Ideal boiler and Gledhill cylinder

    My heating system comprises an Ideal Logic 12 boiler located downstairs and a Gledhill OV SOL cylinder located upstairs . The problem is that when the Gledhill controls for the “hot water” and “central heading” are turned on the Ideal boiler makes a constant “clicking” noise and tries to start...
  7. Gazza9755

    Boiler keeps turning off

    Hi wonder if anyone can help. Had no issues last year. Have Valiant ecoTEC plus and Drayton thermostat. I have tended to leave thernostat and just turn boiler on when needed. Its showing 14 and when i set it higher sometimes it comes on sometimes it doesnt. Sometimes it starts and then...
  8. R

    Boiler service/ gas safe course

    Hello, I am looking for an honest opinion please, with my current employment I get a lot of time off, I am considering completing a gas safe course with the view to use my spare time to potter about doing boiler services and that only, am I naive to think it’s that simple? Thanks
  9. S

    Old back boiler question?

    Hey there I'm looking for some advice on a potential issue I'm having with an old back boiler. So just moved into my parents' old house with my partner, it's a terrace with back to back chimneys in the kitchen and the sitting room. The fireplace in the kitchen is the old back boiler that hasn't...
  10. J

    How should a boiler be fitted to stud wall? Guidelines.

    Hi. I moved in to a new build home and 3 years later (after the builders warranty expires) the boiler is slipping off the wall at one side. This is putting pressure on the flue. Not something I’m happy with. Does anyone know the guidelines on how they should be fitted? I want to prove they...
  11. B

    Right on the edge of the limit?

    Had our gas Baxi Combi inspected and serviced today, as it has been every year. Gas safety cert issued and says all okay, but engineer gave what I think was very... ambiguous... advice. 12yo boiler with the following readings on the analyser printout: O2% = 4.1 CO ppm = 192 CO2% = 9.5 Ratio =...
  12. chriskarl22

    Ariston Boiler Issues

    Hi, I am currently having issues with an Ariston Combi A series boiler giving an E08 - "No water in primary circuit" error code, the circuit is holding water pressure fine, the pump runs and seems to have a bit of force behind it and I have replaced the pressure sensor but the problem persists...
  13. M

    Boiler packs and heating products??

    Hi guys Who are you all using for the above mentioned please? Even budget boilers seem to be expensive these days. Thanks
  14. M

    Looking for advice or help

    I am repiping my radiators with pex al pex, manifolds. 2 zones one 4 rads and one 2 rads. I will have the circulator pumps on the return. The picture is sorta what I am going for My questions are: where should I install my expansion tank? what else should I have/add into the piping? if...
  15. G

    22mm Gas Feed for 35kw boiler - How do I know this is big enough?

    Hi folks, i've just moved into a property last month and begun to take note of things that may need attention. One of which is the feed to a 35kw system boiler appears to be in 22mm flexible steel pipe (tractpipe, or teslaflex or w/e). Distance from the meter is only 4m-5m or so, and I assume...
  16. B

    Combi Boiler pressure refill?

    Hi, Just had a "Main Eco Compact" combi boiler installed as the Biasi one failed. It seems to work fine, gives a hot bath, i dont ever use the radiators or kitchen hot tap. (no point in upping the landlords gas bill for no reason) On day 4, the pressure is below 1. I filled it back up to >1, but...
  17. R

    New Boiler - Metal Filings

    Hi, Is it normal/usual or acceptable for there to be this much metal filings in a heating system following a new boiler installation only 5 weeks ago? A supposed Chemical Flush was completed as part of the installation process.
  18. MarkWillGreen

    Add underfloor to S-plan - S-plan+? closely spaced tees? new boiler?

    Hi All, Looking for a bit of advice on the best way to pipe this. - 24kW Worcester regular boiler in kitchen, approx. 9 years old - unvented tank, zone vavles, pump, expansion is on first floor in airing cupboard - Currently piped as S-plan. - Hive controls. - Would like to fit 6-zone...
  19. G

    Oil boiler not heating up

    I have a danesmore 20/25 oil boiler and it is firing up but it’s producing no heat to the water or the radiators My next door neighbour an electrician has checked the cylinder and thermostat and they all check out ok so he thinks the problem is within the boiler Can Someone help give me some...
  20. W

    Boiler cuts out after repair

    Hi, looking for some advice. We have had an issue with our boiler of late and recently had a 3 port actuator replaced. What’s happening now is when we turn the water and heating on by the control panel the boiler cuts out after a couple of minutes. We opened the valve of the actuator and now...
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