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  1. S

    Corrosion problem in central heating system with standard plastic piping?

    Five years ago I had a new central heating system installed. The pipework for two of the radiators was done in plastic, running under the floorboards. Although the system was dosed with plenty of Sentinel X100 inhibitor, after about 18 months the water suddenly started to go brown, and I had to...
  2. Reddwarf4ever

    Central heating pump sizing

    Hi I have a valiant plus ecotec 418, ( about 8-9 years old ) it has always had the same problem, continually going from S.5.3 to S5.4 and back again....when ever I check, the Delta T while running normally is around 20oC and I am told S.5.3 doesn’t occur until the DT is 30oC. The boiler fires up...
  3. D

    Gas central heating with warm airflow

    Hi, I am not sure what i am trade I am looking butt here is my question. I am in the process of buying a house and the homebuyers survey said there might be possible asbestos in the ventilation pipes. The house was built in 1980.Who tests this ? I contacted an asbestos company and they said it...
  4. L

    New Build House - Central Heating Issue

    I have just moved into a new-build house and can't for the life of me get all the radiators to come on at once. There doesn't seem to be any issues with the downstairs radiators but on the 2nd floor it's random, some days one radiator comes on, another day it will be a different radiator. Then...
  5. Gee

    What is the best setting to keep the central heating coming on daily when I'm away?

    Hi, I have some questions about setting the thermostats and would appreciate some help. I would just set the programmer to twice a day but I'm concerned about power outages which we get a lot of so would like some advice. If I set the thermostat for the pipes (numbers on dial start at 3 and end...
  6. P

    How to stop excessive air in central heating?

    I have a central heating system and hot water tank (Y plan) heated by a conventional system Baxi Solo 2 60PF gas boiler (~20 years old) with a Grundfoss UPS2 pump and a combined 22mm feed/expansion pipe from a cold water tank in the roof. There are 11 radiators and 2 towel rails, I estmate...
  7. A

    Central heating leak

    I have a leak under my floor but having had 9 plumber visits this year no one has found it. it seams it’s a small leak that must happen when pipes cool and contract. I was wondering if there was a dye I could put in so I can trace where it has dried up. I presume it’s dried before plumbers can...
  8. P

    Replacing combi boiler central heating pump - fair cost

    Hello, recently my central heating stopped working and an engineer diagnosed the problem as being that the electrical connection point on the heating pump has partially melted, presumably due to the connection being poor. The pump is inside the boiler body. He recommended replacing the pump and...
    • Pagw
    • Thread
    • boiler central central heating combi combi boiler heating pump replacing
    • Replies: 4
    • Forum: Boilers
  9. B

    What is this leaking valve near the central heating pump?

    Hey all, I'm relatively new to DIY pluming and I've found this forum super helpful so far This is my first time posting. I've got a leaking isolating valve on one of the pipes running I think back to the boiler from just after the central heating pump. I'm pretty sure I've read that this...
  10. D

    Flush gravity fed F&E central heating system

    Forgive me is this is a stupid thought! I'm looking to flush dirty water out of an F&E system. Can I attached a hosepipe to the lowest drain off point and simply drain off water outside without turning off the water supply to the F&E tank? So my thinking is that it may take some time but...
  11. J

    Central heating not turning off

    Hi I'm having a problem turning my central heating off. My indoor thermostat shows the heating is off, even though it is still on. There is an Altech receiver box next to our combi boiler which constantly has the green light on which tells the boiler to turn the heating on. I can only turn off...
  12. S

    Water Dripping from Pipe Connected to Filling Loop for Central Heating

    Hi All, I recently increased the pressure to the central heating using the built in filling loop. In doing so, I noticed there is water dripping from the bottom of the pipe that the filling loop is connected to ( the pipe that allows water to the enter the system). This also looks like it is...
    • slimjim_1983
    • Thread
    • central central heating filling heating pipe water
    • Replies: 3
    • Forum: Central Heating Forum
  13. B

    Warnflow Oil Central Heating Condenser Boiler turning itself on

    Hi, The boiler is coming on when the timer clock is set to off. Because the timer clock is off no motorised valves open and so no heat gets around the house but the radiator nearest the boiler gets hot, (obviously not controlled by the valves). Why would this happen? The control box was...
    • barrymurphy
    • Thread
    • boiler central central heating heating
    • Replies: 4
    • Forum: Boilers
  14. M

    Central Heating Pipes

    Hi all, Earlier today I was trying to get a few floorboards up to get access and one of the 15mm pipes came out of its brass tee connector with the ensuing wet face and mad panic that a bar of water can give you. I popped a bucket under the fountain (it was pointing ceiling way) and ran down...
  15. MrGatch

    Central Heating Flow Rate (Rads+UFH)

    I have a house over three floors with three heating zones. Ground floor is UFH and newish, the 1st and second floor are radiator zones. Historically the radiators don't get very hot on the top floor, however I've just switched them on for the first time since last winter and they are the best...
  16. R

    power tools needed to install central heating

    what power tools are needed to install a central heating system?
  17. milleniumaire

    URGENT F.20 after refilling central heating system

    Today I partially emptied the central heating system (1st floor and loft) so that I could disconnect an old towel rail and install the pipe work ready for the new towel rail. All went well and I have two capped pipes sticking out of the wall where the new towel rail will be fitted. Having...
  18. R

    Oil Fired Central Heating Tank Question

    This is what it looks like. It has been inspected and it is still servicable just needs cleaning up and painting. Yes, I know it's ancient and could do with replacing but so is the owner and funds are limited. Has anyone in PF land got any idea of how the gauge works? Is it a float mechanism...
    • RayPooley
    • Thread
    • central central heating heating tank
    • Replies: 8
    • Forum: Boilers
  19. A

    Central Heating Drain Down

    Needing to change a radiator in bathroom and will need to change out trv and lock shield. On the bottom radiator I have this valve but no drain off attachment. What can I add to this to attach a pipe to drain off.
  20. K

    Avoiding airlocks in central heating system teeing off from the main pipework

    central heating radiators to feed upstairs and downstairs main paperwork runs in ceiling void downstairs ,need to tee off to radiators downstairs do I tee off from above or below on the main pipework to avoid airlocks
    • Kevo
    • Thread
    • central central heating heating heating system main pipework system
    • Replies: 1
    • Forum: Central Heating Forum
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