central heating | Page 10

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central heating

Recent contents Top users
  1. J

    Should I replace central heating pipework.

    Hi This is my second question and follows on from discoveries made while investigating dropping flow rates where you guys contributed a lot. I have made an access point to the crawl space and had a look around. Let me say at this time we are a living in a cottage so all is on one level. A...
  2. Jock Spanners

    To seal a central heating system or not?

    Good morning everyone, I have a big old vicarage which needs a new regular boiler. They also want fancy mixer taps in the kitchen . They have two hot water cylinders linked together, a shower pump and curved old radiators in the bay windows. I'm agonizing over what to do. The easiest option is...
  3. M

    Central Heating cut and shut

    Hi All, Just a quick question, would it be possible for me to shut the gate valve to the flow pipe to the central heating and open the return at any radiator without it causing a mess? From what i know, the flow goes in to the radiator and after coes out as the return, so technically if the...
  4. J

    Central heating in a garden outhouse...

    Hi there, I am building a single storey outhouse at the bottom of my garden and I want to install two radiators in there. I’m just trying to ascertain whether it will be feasible to just connect them to my existing central heating circuit in the main house? My current boiler is a Vaillant...
  5. L

    Noisy Pipes on central heating system

    I'm having some rumbling and water trickling noises in radiators on my central heating system. When the hot water clicks on there is no problem and if the central heating clicks in at the same time again there is no noise - but if the central heating doesn't come on and the thermostat is turned...
  6. R

    moving central heating radiator.

    hi.i'm repositioning radiator in bathroom but there's no isolating valve on pipework..after i've turned electric off to the boiler and drained down the system will i still be able to have a shower,fill the kettle while the radiator is re-plumbed in the new position.thanks
  7. D

    Central Heating - Pipe Sizing?

    A couple of years ago I had a new central heating system installed as part of a full modernisation. Unfortunately I’ve been having problems with other aspects of the renovation so for a while I’ve been running it without a control system or TRV’s (I have a Honeywell EvoHome set ready to go but...
    • Deleted member 116030
    • Thread
    • central central heating heating pipe
    • Replies: 3
    • Forum: Central Heating Forum
  8. S

    how to stop tapping / clicking noises from central heating pipes even though there not on?

    Changed from a gravity feed boiler system to a combi boiler and had problems with noisy pipes? About 4 weeks ago now had a new combi boiler installed, and from day 1 had noises from the heating pipes even though not on. Thought I was just up grading to a more modern space saving cost efficient...
  9. V

    central heating permanently on, faulty motor?

    My central heating won't turn off via the wireless thermostat. I can see that it communicates correctly so suspected a problem with the zone valve. It is a Honeywell 2 port and I notice the manual level is completely loose and I can't lock it in the manual 'on' mode. We have other zones and...
  10. C

    Drip from central heating additive vessel. Does it unscrew? I can’t budge it.

    I’ve tried unscrewing this thinking I can use ptfe tape and re-screw it, but it’s not budging. I don’t want to force it if I’m wrong and it doesn’t have a thread. Does anyone know please?
  11. K

    Noisy grundfos pump central heating

    Hi My pump has started making a loud rattling noise. I’ve undone the screw at the front and no air escaped! Any ideas would be most welcome thanks
  12. P

    Peculiar central heating problem - any ideas?

    Our central heating system "bangs" sometimes when the Hot Water comes on. A single bang. The engineer came and replaced the mid valve actuator. This had no effect. The engineer came back and replaced the mid valve. This seems to have had no effect. We have a recording taken on my iphone when...
  13. R

    Speedfit to copper on central heating systems.

    As per the title. What do you think of using Speedfit in part of the cental heating system? In particular a 15mm x 300mm flexi pipe. Bent at 90 degrees. See link. Not sure what I am dealing with yet but I suspect a leaky Yorkshire elbow below the floorboards. Rather than remove it, clean it...
  14. S

    Help please! Need to identify Central Heating Filter

    Hello, I am a new home owner and I need some help please. I have a filter attached to my boiler (Baxi Combi). The filter does not have a label. I need to identify what the filter is. Apparently these filters come with a sort of circular key to tighten the top. I did not get a key with the House...
  15. C

    230 volt central heating box under bath

    Hi, I’ve just taken off the side of the bath with the aim of fitting an overhead shower to the bath, and have found an electrical unit under the bath, which appears to be for the central heating system. It’s fixed to the floor, so it’s not raised, and the fact that a small ingress of water has...
  16. D

    Central heating reset?

    I have split-level heating in a 3 storey townhouse. The control unit on the ground floor is wired and controls the heating on the ground floor and half of the first floor, and the hot water. The unit on the first floor is battery powered and controls the heating for the rest of that floor and...
  17. C

    Central Heating plan

    Hi Firstly I'm not a plumber or an artist 😂....... Could you guys look at my sophisticated plan and tell me if this is correct, advice would be much appreciated. My situation, concrete floors, boiler downstairs I have 4 rads up and 4 rads down and will be running copper solder. Is it possible...
  18. B

    Can I have the central heating on even though the grundfos water booster has packed in?

    As per title I have a water booster and it is now broken but I am not sure I can have heating on as it may be topped up by the booster. The booster was for taps and 2 power showers so no no showers and only a trickle from cold less from the hot. Its an oil fired CH system with a condensing...
  19. N

    Do central heating sealants work?

    Hi Iv been trying to find a leak on a central heating system for a few days now but haven't found nothing obvious. I took up the floorboards downstairs and everything looks good. Another gas engineer has recommended I use central heating sealants as they can be quite effective but a second gas...
  20. C

    Can't remove air from central heating after replacing pump

    I have what I believe is a fairly standard open vented Y-plan heating system with a header tank and cold water tank in the loft (I have attached a picture of what I have worked out). I am not a plumber, but I am confident with pipe work - normally I would call a plumber but with the current...
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