central heating

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central heating

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  1. K

    Issue replacing 22mm pipe on central heating

    Hi all I was hoping to make good this corner of my central heating (22mm) (where the old magnet was) and fit a new Adey Pro 2 just above but on cutting the pipe at the lower end its really difficult to get a coupler on. I tried chamfering the pipe as much as I can but its a struggle to get the...
  2. J

    Power Flushing Central Heating

    Hi, I have an old 3 story property with radiators on each floor. The radiators have become increasingly less efficient so feel flushing the system would have a hopeful benefit. I have bought a secondhand flushing unit (pictures attached) and would like some advice on how to set it up. Also...
  3. B

    Replace central heating gate valve with 2-port valve

    My house has a separate central heating loop that heats an annex. The annex loop has 3 x radiators (all with TRV), pump (manually switched) and a gate valve. The gate valve is very awkwardly sited, and difficult to operate, so I am wondering whether it is a good idea to replace this with...
  4. H

    Central heating system cleaning

    Hi all, I have added a bottle of Fernox F3 into my towel radiator upstairs, I have run the heating for a good few days now. I have bleed off points downstairs I can attach a hosepipe to drain the system. Question when all the water has drained out can I leave the hosepipe on and fill the system...
  5. rwb196884

    Replacing one central heating radiator with two

    I want to replace one radiator underneath the window (which is useless when it's cold and dark becuase it's behind the curtains) with one tall radiator at each side of the window. I imagined plumbing them in parallel like this. (The dark squares in the middle are where the existing pipes go...
  6. B

    What do you think of this price for fitting gas-fired central heating?

    Hi folks, I would be super-grateful if you could let me know what you think of the price below: Convert from Economy 7 to gas using Worcester Greenstar 4000 30kw high efficiency combination boiler positioned in hotpress and flued horizontally through wall, with extended flue, system to...
  7. M

    Y Plan central heating gets hot on hot water demand

    Hi guys, just want to get some advise, basically new vaillant regular boiler has been fitted approx 5 yrs ago, i believe it was back boiler previously. The heating worked fine till now and for some reason central heating radiators started getting hot on hot water only demand. I`ve checked 3 port...
  8. K

    UK Running central heating pipe past electrics?

    Hi all I need to run this CH pipework to a radiator located beyond the electric wiring in the image below. Just to be safe I was wondering if there are any rules / distances, etc I need to be following when avoiding the wiring? Many thanks. P
  9. SnosRap75

    Boiler losing pressure only on central heating

    Hi, I have a Worcester 28i junior boiler that has started to lose pressure, only when using the central heating. When using hot water I have no issue, however, when running the heating the pressure drops. Im looking for some ideas on what could be causing this. I have no sign of pipe leaks...
    • SnosRap75
    • Thread
    • boiler central central heating heating pressure
    • Replies: 6
    • Forum: Boilers
  10. M

    Central heating losing pressure all the time

    Every two weeks or so I have to go and top up the system because the hot taps are running cold. Boiler display is flashing 0.6 bar and I fill up to 1.3. I've had an engineer look inside the boiler and he can't see anything wrong. I've checked the pipes all over the house and cannot see any...
  11. 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 &...
  12. S

    Repiping Central Heating System Advice

    I am repiping my whole house and changing from combi boiler to a 30kW system boiler & 250Ltr or 300Ltr unvented indirect hw tank. Can somebody give advice on my rough plans/sketches for repiping my radiators using 22mm & 15mm. I have only shown the flow line as the return line will just be a...
  13. 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...
  14. ericmark

    Google Nest Central heating control how to improve?

    I have a home with an oil boiler in a garage turned into a flat, heating both flat and main house, running c plan with two pumps, two motorised valves simple bi-metal thermostat on wall in flat with 4 standard TRV's rarely used so not worried about the flat, and main house has Nest Gen 3 in the...
  15. S

    Where is the hidden central heating pipe leak causing low pressure?

    I have been facing central heating low pressure on unvented hot water RM Cylinders but can't see any leak on the PRV, expansion vessels and plasterboard celling. I have got unvented pressurized RM Cylinders hot water system with 27KW Worchester gas boiler with expansion vessels . When...
  16. 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...
  17. 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...
  18. 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...
    • MartinPod81
    • Thread
    • boiler central central heating combi combi boiler heating hot water water
    • Replies: 0
    • Forum: Boilers
  19. 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...
  20. 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...
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