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  1. M

    Megaflow and awful flow rate from showers.

    My friend has a megaflow system but the flow rate at the showers in the house is awful. What is the best way to increase the pressure/flow rate for this sort of system? They already have a 25mm MDPE pipe from the mains coming in to the property. I need to quote them for fitting a shower on...
  2. P

    megaflow

    hi can anyone tell me what unvented cylinder they think is best and why. I know heatrae sadia megaflow are the leading ones but are so expensive.
  3. A

    Drain down rads from a megaflow

    Hi all I was wondering how i would isolate the flow to the radiators in a house which has a megaflow system. I need to move the flow & return pipes to the opposite side of the room to install a new rad. Any help would be great! Thanks. Alan.
  4. T

    Megaflow or Combi?

    Hi there all - we're doing a loft conversion in our house so will have a 4 bed property with 2 bathrooms - should we be going for a megaflow or a combi as a couple of gas-fitters have quoted for? They seem v keen just to rip out the old system and put in a combi - I'm not sure this would be best...
  5. D

    Disconnecting radiators - Megaflow

    Apologies if this hass been asked before... I am getting the bathroom completely re-done and part of this involves stripping tiles off and re-plastering. However, I want to remove the radiator that's in there and also the radiator pipes as far as the ceiling (so it can be plastered). Every...
  6. R

    Problem with Heatrae Sadia Megaflow

    Hi I am a new member to this forum. I am not a plumber - just an interested householder. I have water dripping from a valve attached to a Heatrae Sadia Megaflow CL 170 unvented system. The leaking part no is 95 605 021. Do I need a new valve - or is this a result of a problem elsewhere in the...
  7. N

    Megaflow question

    Hi all, its Friday :17: Well just been out to have a look at a faulty Megaflow and just want a few thoughts and opinions if poss (sorry if people have asked about this before) Water is being discharged via the tundish at a v.slow rate probs about 1 drip every 5 seconds. The water being...
  8. L

    Pumping a Megaflow.

    A strange one , I know, but this is something that I need to do. (Customer is only getting 2 bar at the mo along with 14ltrs/min flow rate) Can anyone advise me on what would be a good pump to buy for my customer. Will be using the old c/w storage tanks as a break tank. then from there...
  9. S

    Combi vs megaflow

    We are renovating our bungalow down in cornwall. We are off gas, and currently have an old oil fired boiler. After much research we've decided to stick with an oil fired boiler. What we can't decide is whether to go with a combi or a megaflow pressurised system. The place will be well...
  10. G

    Moving to a megaflow, been suggested to also have a feeder tank

    Hi, I have been discussing a new water system with a professional and he suggested a megaflow (due to poorish mains pressure), but also suggested a 200litre+ cold water storage feeder tank in the loft - he did try to explain that this would provide constant pressure but I thought the megaflow...
  11. C

    Megaflow - basic questions

    Hi (this is my first post) My builder has recommended a Megaflow system - in order to meet our requirement for instant hot water and high pressure power showers. He says that the pressure and flow rate are 3.8-3.9 bar and 22l (per min I assume) - and that this should be ok for Megaflow...
  12. S

    Hot water secondary return

    Hi All, Has anyone got a drawing of how a typical secondary hot water return system would be set out? I think ive got it right but just wanted to check. Its on a 300ltr megaflow with two boilers cascading for the CH but i want to pump the DHW at peak times Cheers
  13. K

    Megaflow unvented pressurised 125 litre hot water cylinder query???

    Hi a plumber has recently installed a DD125 MEGAFLOW hot water cylinder into my 4th floor flat, however it was not possible to connect the safety outlet to the outside due to the original one not having this (Gledhill). At the moment i have put a bucket under it. How much of a problem is this? i...
    • kean
    • Thread
    • cylinder hot hot water hot water cylinder litre megaflow pressurised query unvented water
    • Replies: 37
    • Forum: Plumbing Jobs | The Job-board
  14. K

    Megaflow overflow

    I would be really grateful if anyone could give me advice. My new build house has a megaflow hot water system. This overflows outside especially afer showers. This has been a problem for 2 years and the 'bubble has been reset about 8 times. When a megaflow engineer came out the message seemed to...
  15. M

    Heatrae sadia megaflow problems

    I am site manager of a block of flats in sunny glos. We have 35 off heatrae megaflow d 145 immersion heater tanks, half of which have leaking overflows which are damaging the fabric of a grade 2* listed building, formerly the largest woollen mill in the county. I have regenerated air pockets in...
  16. T

    Is it now illegal to have a pump fitted onto a megaflow unvented system

    Could anyone help, the megaflow system was fitted around 18 months ago, there is an old stuart turner pump ( fittrf around 10 years ago) still operating as a shower booster on the system, is this allowed as the pump is leaking a bit and needs replacing but am a bit confused as ive since been...
    • taffy1
    • Thread
    • fitted illegal mains megaflow plumber pump should system unvented water
    • Replies: 13
    • Forum: Plumbing Jobs | The Job-board
  17. M

    Megaflow needing topping up daily

    I have a megaflow system that has been working fine for a few years. Recently though (over the six months or so), Ive had to top up the expansion tank at ever increasing frequency. My plumber has changed the expansion tank (apparently the membrane had gone, so i guess it needed doing anyway)...
  18. A

    Vaillant 438, VR65, VRT392f and Megaflow connections

    HI , I wonder if there is someone out there who can help, i've got a Vaillant Ecotec 438 open vented Boiler , a VR65 control center and a Wireless VRT392F thermostat controls with a large Megaflow HE 250L tank. I have installed the VR65 as per Vaillants instructions, the Hot water and Heating...
    • azam
    • Thread
    • boiler central central heating system connections control controls cylinder ebus eco hot hot water megaflow open vented pump safe safety tank temp control temperature vaillant valves water wireless
    • Replies: 0
    • Forum: Plumbing Jobs | The Job-board
  19. B

    Megaflow , a bit confused

    I am looking at a megaflow that runs out of hot water quicker than it was . I have megad both immersion heaters / stats and they read 19 ohms which is correct. They both have a 230v supply . so i am confused as by all accounts they are ok. Age of cylinder approx 7 years , thanks for any thoughts...
    • billybongo
    • Thread
    • confused cylinder electronic fuse hot hot water megaflow supply water
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  20. A

    Connection of VR65 and Megaflow

    HI , I wonder if there is someone out there who can help, i've got a Vaillant Ecotec 438 open vented Boiler , a vr65 control center and a Wireless VRT392F thermostat controls and a Megaflow HE 250L tank. I have installed the VR65 as per instructions, S plan , the pump valve and Heating Valve are...
    • azam
    • Thread
    • boiler central central heating system connect connection connections control controls ebus eco ecotec hot hot water megaflo megaflow open vented pump s plan temperature vaillant valve water wireless
    • Replies: 0
    • Forum: Plumbing Jobs | The Job-board
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