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Search results

  1. B

    Megaflo wiring problem, help pls!

    I am trying to wire the s plan of a megaflo system, however i dont have room thermostat, how to bypass it? looks there is no power going to the boiler at the moment... thanks a lot
  2. B

    i gave the boiler 'at risk'

    i went to an old house yesterday to do a landlord certificate, the boiler is an Ideal RS40S in a first floor bedroom cupboard, RS, natural draught, checked everything fine, it is old but still working well, the only thing is the flue terminal, the direct distance between the flue terminal and...
  3. B

    gas meter union nut size?

    Dear all, I tried to replace half meter length of lead pipe with copper pipe this morning, i removed the lead together with two nuts, thought just new copper pipe and two new 22mm nuts and should be easy. then realised that the nut size is slightly bigger than 22mm nut, brought the nuts to BSS...
  4. B

    what is the difference between worcester combi boilers?

    hi all, have not installed any boilers before and still in training strictly speaking, i just wondering what is the difference between greenstar 30CDI and greenstar 30HE? they are all combination boilers, cheers in advance
    • bluesky
    • Thread
    • boilers combi worcester
    • Replies: 4
    • Forum: Boilers
  5. B

    will Vaillant Ecotec Pro 24 work for this house?

    hi all, just got the ticket really, really need some advice, this is a 4 bed detached house, built in 70s, one bathroom only, 3 sinks, i put details in the sedbuk website calculator, the answer is 19kw, is this calculation ok? some people said at least 30kw, who is right? cheers in advance
  6. B

    filling loop for megaflo boiler?

    Hi all, we are going to install a megaflo system, the boiler is a baxi megaflow, but there is no instruction for filling loop, can i just install one between cold water and boiler pipes? cheers
    • bluesky
    • Thread
    • boiler filling
    • Replies: 2
    • Forum: Boilers
  7. B

    how to check the flue performance of air heater?

    i am going to do the flue performance test of a Johnson and Starley air heater. But cannot find where is the best place to test the flue. Anyone has done this before? cheers
  8. B

    is 15mm cold water ok for megaflo?

    first of all i never installed megaflo although i have passed the course, we are going to install a 300L megaflo, totally 5 shower in this HMO, i am going to connect balanced cold water after the pressure reducing valve, at the moment the water pressure is about 1.5bar in the house, do you guys...
  9. B

    22mm for shoewr hot water in megaflo system?

    i am studying unvented system now, i am studying plumbing as well, it says the outlet of hot water is 22mm, so for showers and basins hot water on first floor are they going to use 22mm all the way or just for connecting to the megaflo cylinder? cheers
  10. B

    Can TF1 filter be installed in flow pipe?

    Customer asked me to installed a filter, i had a look, i know it should be insalled in returen pipe, but this one it is very easy to install in flow pipe, if i do that how serious is the consequence? Just curious.. cheers
  11. B

    electrical supply to megaflo!

    hi all, we are going to install a megaflo cylinder in a HMO. i had the Unvernted course but never installed one before. I think there is one 2.5mm cable for the boiler, but do i need to run a seperate 2.5mm cable for the immersion heater? or they can share one 2.5mm cable? cheers
  12. B

    Can this wall support a boiler?

    We are going to install a boiler on a conservatory wall. it is a 100mm brick wall. the mortar looks in good condition. the only thing worries me is that the wall only support a light plastic roof, the foundation might be only 300mm brick foundation, do you guys think the boiler can be put on...
  13. B

    which unvented cylinder shall we choose?

    we are going to install an unvernted cylinder in a HMO. Totally 5 showers. i know there are different makes on the market, Which unvented cylinder do you think is the best for this house? will 300 liter work? also how to calculate the size of boiler? i had the unvented course but never install...
  14. B

    how to deal with the tiled wall?

    I am going to install an extract fan in a bathroom. it is on first floor. it should be a quick job but the outside wall is tiled wall, the tiles are about 100mmx100mm, how to make it nice? what kind of kit shall i buy? cheers
  15. B

    can i install a boiler in the conservatory?

    Hi all, I am not a qualified gas safe engineer and still work with experienced engieers, today i had a look in a property whose landlord wants to install a boiler in the conservatory, i think it is ok, but the roof is not glass, only transjparent plastic, the wall is 100mm block wall, will it be...
  16. B

    does unvented system need a external moterised pump?

    hi, i am in the training of ACS, just had some reading on unvented hot water system, it certainly needs a motorised pump for water circulation, but if a system vaillant boiler installed, like ecoMAX618, the boiler has a pump inside already, so does the system still need a motorised motor outside...
  17. B

    flow or return water goes to DHW he?

    dear all, i am studying gas safe now, i opened a friend's vaillant boiler yesterday and found that the divert valve is on the return way back to boiler, does this mean actually the return central heating water goes to secondary heat exchanger and is warming up the DHW tap water? this must be a...
  18. B

    boiler has no hot water

    been called by a friend, he has a vaillant turbomax 242e, he said the boiler only works 5 seconds and then have a rest of about 5 seconds, so there is no hot water, i got there and checked: 1. air switch is fine, 2. rectification lead is ok, 3. pump is running 4, i noticed that when the boiler...
    • bluesky
    • Thread
    • boiler hot water water
    • Replies: 12
    • Forum: Boilers
  19. B

    does gas hob need rigid connection?

    hi all, i am in training of gas safe, one plumber told me that gas hob should use rigid pipe, i know gas cooker can use flexible hose for connection but really not sure about gas hob... cheers
  20. B

    what certificate should be issued after installing a new boiler?

    a friend has a new boiler installed in his kitchen, the guy issued a landlord certificate to him, i thought the landlord certificate is only for landlords who going to let their properties, am i right? cheers
    • bluesky
    • Thread
    • boiler new boiler
    • Replies: 38
    • Forum: Boilers
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