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central heating

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.

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  1. G

    Central heating pipe routes

    I need to extend my central heating from my newly built extension in to the old part of my house. I need to feed 3 rads in separate bedrooms on the first floor and then to feed a towel rail in a bathroom a rad in the utility and a rad in my lounge on the ground floor. Can I run my 22mm flow &...
  2. P

    Should I insulate vent pipes in loft (from DHW cylinder and central heating)

    Hi I recently did some pipe insulating in my loft. The only two I didn't do were the vent pipes. Not sure if that is the right term for them? They are the pipes that feed water back into the top of the tanks when there is excess, presumably from steam, expansion, etc. The one going to the cold...
  3. mattgriff88

    Flushing/Cleaning central heating system?

    Hi I have recently bought a house which is 17 years old. There was a small leak from one of the radiators So I took the pipe off and drained the radiator and the water was black/brown. I took the radiator off and flushed it out with a hose pipe out the garden but it's got me thinking and I...
  4. B

    Central Heating T up & downstairs, valve to restrict upstairs?

    Hi, I have 3 port value for HW & CH. Loft extension added many years ago so they added a T to go upstairs, only 2 rads up but 11 downstairs covering at leave twice the floor area As per diagram has free flow Up or Down, no way to balance. Works pretty well but last few Rads (in kitchen) are...
  5. M

    Hot water demand effect on central heating for Combi boiler

    Hello, We’ve recently moved into a fairly old, fairly big detached house (i.e. fairly draughty, but not too bad by any means) with a fairly new well maintained Worcester combi boiler. We weren’t convinced the heating was working right and then got hit with a £610 energy bill for the first 6...
  6. J

    Banging noises in central heating - Help!!!

    Desperate for some help! Be a life saver of someone can help as suffer from a high intolerance to noise. Moved into new house 1940s (copper pipes) and having serious issues with banging pipes only when central heating is on. Not when running taps We have a wall in living room that has stop tap...
  7. Dan

    My Central Heating Doesn't Work - Master Thread

    I thought I'd create a master thread to move all of these similar threads into, over time like. If your central heating doesn't work boiler doesn't work radiators not working radiators or heating system is cold thermostat wont work or respond Then post a reply in this thread. Rather than us...
  8. A

    14,15mm pipe for central heating

    Hi guys. A couple of things. 1 am I better fabricating bends in 14 mm copper for my ch or are 90 degree elbows fine, ref flow, friction ect. 2 my ch boiler, non condensing is playing up, I can get hot water, but when heating is on pipes only get hot for 1st mtre or so? I can hear feel the...
  9. B

    What is the problem with my oil central heating system?

    Context for issue: Last winter the temperature switch on my boiler shorted somehow, the boiler was then running WAY too hot and ended up blowing/melting a hole in one of the pipes. I repaired this by putting in a new stretch of pipe in and just connecting it to the existing pipes with two...
  10. B

    What is the problem with my central heating system?

    Context for issue: I'd like to start by saying I'd rather not read 100 "Hire a professional comments", I will do that when/if it comes to it, but I'd like to do it myself if possible. All images for system here: https://*********/a/ngPQkre Last winter the temperature switch on my boiler...
    • Butchy10
    • Thread
    • central central heating central heating system heating heating system oil boiler problem system
    • Replies: 0
    • Forum: UK Plumbing Forum | Plumbing Advice
  11. W

    Can I have single zone central heating when pipe installed for 2 zone?

    A bit of clarification - I have extended a 3 bedroom semi detached and at the time central heating pipes were going in I told the plumber could I have 2 zones - one for bedrooms upstairs and another for the living areas downstairs. Now the plastering has been finished and I am costing the combi...
    • waynetr
    • Thread
    • central central heating central heating system engineer forum heating installed pipe pipework plumbing single zone zones
    • Replies: 0
    • Forum: Plumbing Zone
  12. K

    What could be wrong with central heating?

    Hoping for some advice as I seem to be hitting a brick wall. Moved into a house last year, radiators down strairs (4 of them) never really got warm, replaced the combi boiler this year as it was loud and leaking (its in the loft which has been converted into a room). Since turning the heating...
  13. J

    Blockages in 10mm plastic central heating pipes

    Our house was built in 2007 and we are the second family to live here - moving in in 2017. The central heating has been working fine - although the gas boiler is perhaps nearing the end of its life. But the boiler is not our current issue. Last winter two of the radiators did not heat up and...
  14. G

    Control System for 3 zone Central heating?

    HI folks, this post is a follow up to my post relating to my single pipe heating system. In summary, I have a house built in 1980 (I bought it 2 years ago) that had a single pipe heating system but over the years there have been some changes made to the system that meant it didn't work. I have...
    • George Kaplan
    • Thread
    • central central heating control forum heating plumbing system zone
    • Replies: 8
    • Forum: Plumbing Zone
  15. L

    Hot water only works when central heating turned on too. Why?

    Hey everyone, I'll keep it short. Had our old system boiler replaced with a new Ideal system boiler set up. Then the problems began. First issue was the pump went faulty, so the pump was replaced. This then led to a new issue coming up where the central heating would work, but not the hot...
    • Leo Ismail
    • Thread
    • central central heating central heating system heating hot hot water no hot water system boiler turned water works
    • Replies: 2
    • Forum: UK Plumbing Forum | Plumbing Advice
  16. D

    Limescale cleaner for central heating

    Hi Where I am living the water is very hard. The result is my heat exchanger most likely has accumulated limestone. The problem is that due to the limestone accumulation the boiler is cutting out at high temperature, thus not having the possibility to transfer enough heat to the radiators. Is...
  17. G

    Need Advice about Boiler and Central Heating Repair Please

    Hi. I'm having some issues with my boiler / central heating and have enlisted a local 'Combi Heating Specialist' to sort it out but he seems to be making things worse. I really need another expert's opinion, to put my mind at rest, or help me make the decision to stop using his services. I...
  18. 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...
  19. 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...
  20. 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)...
    • Neil Atkins
    • Thread
    • central central heating central heating system dual dual zone forum heating plumbing query zone
    • Replies: 2
    • Forum: Plumbing Zone
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