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  1. Crofton Gas

    Nest and Baxi boiler - I am learning, please help me?

    Think the override button only switches relay on the 240v side
  2. Crofton Gas

    Nest and Baxi boiler - I am learning, please help me?

    Are you sure the nest opentherm is not holding boiler off due to inside/outside temps?
  3. Crofton Gas

    Is this likely to be load bearing.

    What's directly under the stud wall?
  4. Crofton Gas

    Nest V3 and Vaillant EcoTec Pro24... a simple question.

    Save trying to get a link wire across from live to 2 in nest, Live - L Neutral - N Live out - 2 (terminal on same plug a RT) RT- 3
  5. Crofton Gas

    Nest V3 and Vaillant EcoTec Pro24... a simple question.

    Doesn't have to come from boiler supply, although it's easier to just run 4core from the boiler to stat.
  6. Crofton Gas

    Rad balancing order when multiple rads are stone cold?

    When balancing a system, you open the furthest rad fully open and then restrict the flow as you you get nearer the boiler. Any that are hotter are restricted more.
  7. Crofton Gas

    Control on boiler to reduce output?

    The knob on the front controls the temperature of the primary water (water going around rads)
  8. Crofton Gas

    Control on boiler to reduce output?

    Download the installation manual, will tell you all you need to know. Most installers don't bother rating boiler down, so you'll probably find its factory set to highest output, unless it was done right.
  9. Crofton Gas

    Confused, not dazed but definitely confused.

    Depends on how it's installed, if your near Edinburgh, get hold of Ryan from g.d mills plumbing and heating... highly recommended
  10. Crofton Gas

    Confused, not dazed but definitely confused.

    If its air, you will need to shut all radiators, then with the boiler/pump running open one rad and vent into bucket until it's hot, then close and repeat on other radiators. If it's sludge, your need a powerflush of the system
  11. Crofton Gas

    Confused, not dazed but definitely confused.

    And do the others get hot? Or try turning all the rads off apart from one of the cold ones, if that gets hot there's a circulation problem, sludge or air
  12. Crofton Gas

    What type of Shower do i have?

    That looks like a standard pivot shower door...measure the width from wall to wall and go to any home improvement store and you will get one
  13. Crofton Gas

    Confused, not dazed but definitely confused.

    Have you tried balancing system, ie throttle down the hot radiators on the lockshield? Could be air locks...
  14. Crofton Gas

    What is this drain cock

    Search 1/2" drain off valve...your find one
  15. Crofton Gas

    Need to re-pressurise EcoTec Plus 618 system - but how?

    It will be the hot water storage cylinder, normally in an airing cupboard
  16. Crofton Gas

    Need to re-pressurise EcoTec Plus 618 system - but how?

    Hello, The Vaillant 618 is a system boiler, therefore the filling loop would normally be near the unvented cylinder
  17. Crofton Gas

    Radiator getting hot when Hot Water on

    With the head removed turn on hot water and manually turn the spindle if heat still goes down the CH side then the three port needs replacing.
  18. Crofton Gas

    Flushing central heating system question

    Yes, unless you use a powerflush machine with internal heating element. As above tho, powerflush is only required on systems with problems or new installs
  19. Crofton Gas

    How to cut this waste pipe?

    It's copper, use a hacksaw and no need to cap.
  20. Crofton Gas

    Flushing central heating system question

    The black sludge is iron oxide, known as magnetite, which is a result of the water in the system oxidising and breaking down the inside of rads, its then magnetised as it passes through the AC field in the pump and sticks together. Inhibitor only slows this process and does not stop it. A...
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