• Welcome to PlumbersForums.net - The international free plumbing advice forum. Professional plumbers sharing advice with fellow plumbers and DIY alike. Register for free today! - Checkout the Plumbing Advice forum and then our Plumbing Videos area which still needs populating.


A central heating system provides warmth to the number of spaces within a building and optionally also able to heat domestic hot water from one main source of heat. It is a component of heating, ventilation, and air conditioning (HVAC) systems, which can both cool and warm interior spaces.

View More On Wikipedia.org
  1. T

    Oil heatslave 2 no heating

    Hi all , retired plumber here needing advice Just moved in to a house where a 1 year old green star heatslave 2 12/18 Geordie oil boiler is installed House has been empty for 5 months so technically the boilers hardly used Switched on pressure is fine , hot water fine but the heating is not...
  2. M

    Floor heating timer on boiler

    I'm trying to use an underfloor heating programmer/timer on my Worcester Boiler to control the central heating ? The switched output from the programmer is 240v at 16amps yet it will not fire up the boiler ? I cant understand why. Thanks
  3. R

    Career Change - Gas and Heating

    Hi everyone, I’m after some advice. I would like to make the move into gas and heating engineering. Currently I’m looking at the routes available and think that going through a training centre would be most suitable for me. Some background: I’m a junior structural engineer and have spent...
  4. T

    Heating cuts off for no reason

    Hi We have a Worcester Greenstar Ri boiler. This has been going on for years but we have just sort of lived with it but I would like to get it sorted now. When we knock the heating on, the boiler starts and the water tank starts making its noise. After about 25-30 minutes though, after the...
  5. L

    Underfloor Heating Manifold - what brand?

    Hi, I am trying to see if anyone recognises the brand of this underfloor heating manifold? I think it's about 22 years old. I'm trying to get more details to see if I can change the faulty actuator. Any suggestions welcome. Many thanks, Mark
  6. T

    Pipes making noise even when central heating is off

    We have a Grant condensing oil fired boiler in good condition and four years old. Sometimes after a period of use when the central heating has been on, we can hear a rhythmic sound from the pipes and the boiler is not firing up as it should Leave it for a while and turn up thermostat and it...
  7. G

    Thermostat broken, boiler heating rads up constantly

    My valiant thermostat has broken (kids knocked off table and wiring inside stat became disconnected) now the boiler is constantly heating up the radiators and house. Any idea how to fix!
  8. S

    What heating system would you recommend

    Hi, I would really appreciate your thoughts, especially given the current climate we're living in. I moved in January to a property which only has storage heaters. It's a two bedroom detached bungalow and I'm only putting 2/3 of the storage heaters on at night, together with the immersion so we...
  9. I

    heating works in service mode but otherwise hot water only.

    Hi, I have a problem with a Main eco 30 combi boiler. Hot water works fine but when heating is called for nothing happens. No light illuminates or anything. I've found a workaround where if you put it service mode (to change high / low flame) then the heating led flashes along with the hot...
  10. D


    24/7 EMERGENCY SERVICE AVAILABLE FOR PLUMBING - HEATING - DRAIN CLEANING. 2429 Hartley Place Wilmington DE 19808 Office: 302-308-1033
  11. D

    Cleaning central heating system

    Hello. We live in the UK and have an open vent CH system with a tank in the attic. Recently our hot water didn't work, so we called a gas engineer. He popped in , did tap a few pipes around water storage tank with a magic wound ( magnes ) and water started heating up. He said that some pipes...
  12. N

    What is this heating system

    I am trying to buy a house and it has this system installed. In pic . It’s a one bath house why does it have all that. It’s four bedroom house total heaters 12.what is this cylinder and what is that motor.do you think this house might have some water pressure problems.please guide Thanks. Nee
  13. R

    EvoHome Heating off still heats some rooms

    Hi, For EvoHome users/installers out there. Is it normal that when I select from Quick Actions - Heating off, the radiators will still get hot as set on individual Radiators valves (HR-92s). Every time I select heating off (to switch whole heating system off) I can see that some radiators are...
  14. P

    Plumber / Heating Engineer

    We are looking for an experienced plumber or heating engineer to join Pinnacle Heating & Plumbing Ltd. We offer very competitive salary (up to £42,000) based on your qualifications and experience, a van, pension and 28 days holiday. Normal working hours are Monday to Friday 08.00 - 16.30...
  15. E

    My gas central heating uses a lot of electricity - Why?

    I have gas fired central heating and hot water system. It is on a timer, but, in winter, I leave the central heating on and the thermostat set low - 17c. I'm well insulated so the heating comes on infrequently but enough to keep the house warm enough for a family of three. Here's the problem...
  16. P

    Identify my heating component

    Could someone please explain why the hot water doesn't just pass straight through this manifold and bypass the smaller radiator pipes? Is there a splitter running down the middle of the manifold? Does this mean its a single circuit system? Cheers guys Paul
  17. B

    Oil Heating staying on when clock is off

    Hello, My heating is coming on when the clock is off and typically this has been a motorised valve failed but i have checked both valves, (i believe both replaced in last two years and the manual levers are solid i.e closed). Now what is strange is that full heat gets to the radiator closest to...
  18. C

    intermittent discharge from the PRV from my Vokera28

    the problem only occurs when the heating is on OVO engineer came and declared it to be a choked heat exchanger and choked hoses, he cant do anything as the insurance doesnt cover sludge. I'm sceptical as there is no shortage of heating, but there is a reduction in hot water temp. My view is...
  19. M

    Baxi Combi Boiler (Duo Tec) - water not heating

    Hi all I’m having a problem with my Baxi combi boiler and wondering if anyone is able to help. In short, the water isn't heating. A few months ago (c.2 months) my Baxi combi boiler had an issue where the hot water would go hot and cold on a regular cycle; it would get hot, then cool down, then...
  20. bill90

    Boiler OK - No upstairs Heating

    My boiler is fine and I am getting heating downstairs and water on demand up and down. On the upper thermostat when i manually ask it to come on - the boiler is not getting the demand. The electric motorised valve is making a racket so I am thinking it might be to do with that. When the...