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gravity

Recent contents Top users
  1. C

    Hive to replace Drayton LP722 on Gravity Fed System

    Hi all, I am planning on replacing my Drayton LP722 Programmer for a Hive programmer.( THIS HIVE?? : https://www.amazon.co.uk/d/Home-Kitchen/Hive-Heating-Thermostat-Professional-Installation/B011B3J6B8/ref=sr_1_2?ie=UTF8&qid=1547395207&sr=8-2&keywords=hive%2Bheating%2Bhot%2Bwater&th=1 ) The...
  2. B

    Gravity system pumping over?

    Happy New Year all. Just been out to a noisy gravity system where pipes are making a racket. Checked vent in f and and e tank and it's warm full of brown sludgy water. Am I right in saying that the see sawing of dirty water will make the system dirtier and pull in air over time. pump speed was...
  3. T

    Unvented santon (45 yr old?) immersion heater with gravity fed tank?

    Hello, I hope someone can help, we recently were forced to move to a ground floor social housing flat because of my partners worsening health condition. It has an assisted shower with a mira advanced thermostatic low-pressure shower unit so hot water for baths isn't a problem. However, the...
  4. W

    What is considered a decent shower flow rate for gravity?

    In litres per minute at say 0.2 bar. Thanks
  5. A

    Full Pumped or Gravity Fed / Part Pumped system ?

    I am installing Hive Active heating and need to know if my system is fully pumped or Gravity Fed / Part Pumped. I have a small tank in the loft to feed water so assume this is open vented. I also have a Grundfos pump attached to the pipework. I also have a megaflow tank. Appreciate your help !
  6. G

    Why are Cylinders rarely in the loft for Trad. Gravity Vented Systems?

    Sorry if I come at this form the wrong direction. I'd like to move my vented-cylinder into the loft. I run two shower-pumps too. I realise a sealed-cylinder is the easy route. Sadly I've not got much mains pressure. Combination boilers don't really have the grunt for fire-hose showers. I'm...
  7. S

    Boiler move with Gravity hot water

    Hi all first timer here...I need a bit of advice on a central heating job..the job is for a relitive who gave me a call wondering if I could move an oil boiler from the utility room of his house to the corner of the garden he wanted to buy a new condensing oil boiler that can be fitted...
    • Scotty123
    • Thread
    • boiler gravity hot water water
    • Replies: 16
    • Forum: Boilers
  8. S

    Hot water to hot on gravity fed

    Hi guys wonder if someone could help. Hot water on a gravity fed system (y plan) is far too hot. Tried swapping cylinder stat but is the same. With hot water on the boiler fires up even when cylinder stat is set at 50c. If I turn the stat down lower the pump and boiler go off. Customer has...
  9. W

    A Fluidmaster fill valve works well on gravity fed?

    The standard ones bundled in a pack with the flush valve from the sheds/screwstation/toolfix don't perform well on gravity fed in my experience. I've heard one of the 'pro' version has a restrictor you can remove to make it work better? If so :- 1) Which valve is this? 2) Does it perform well...
  10. M

    Wireless controls to upgrade gravity system

    Morning all. I am looking to either convert a Potterton performer to a fully pumped system or replace the boiler. Either way I am going to need wireless controls to get to the cylinder thermostat. Can anyone recommend any controls they use or is it just go with honeywell. And what system...
  11. J

    Aqualisa Quartz Gravity Pumped QZD.A2.EV.14 Shower

    I have a customer who wants an unvented HWS, they have a Aqualisa Quartz Gravity Pumped QZD.A2.EV.14 Shower which has a max pressure of 1 bar. My question is if I fitted PRV's set at 1 bar, on both H & C services to the shower pump once the UVHWS system is installed, would this be sufficient...
  12. E

    Gravity fed to combi ring?

    hi. Am redoing a bathroom, taken out an old airing cupboard. When people installed the new combi (15ish years ago) they put a ring in, see pics. I am guessing there was no access to bury it or take it out. I would like to know, why they put it in. Obviously it’s got an air vent but I now have...
  13. A

    Gravity hot water system plumbed into central heating circuit.

    Any body seen this b4? I have just moved into a bungalow and it has a Baxi Boston boiler installed around 20yrs ago (still working). Whilst up in the loft I noticed there was only one cold water tank and no header tank for the central heating. The hot water and central heating vent both...
  14. S

    Gravity feed system sucking air open vent

    Evening all, I have been researching what could be the reasons behind my system sucking air through the open vent on the gravity feed central heating system. What I know.... The system was installed more 30 years ago and I believe looking at the pipework/soldering of the fittings that Jack was...
  15. D

    Do unvented cylinders require a 'gravity' drain?

    Hi again. Exploring options for my bro's flat. One is to convert to a pressurised system. The preferred location for the new unvented cylinder would be where the current vented one is in his airing cupboard. Problem is, it would be tricky to get a gravity drain from this to the outside (he had...
  16. Ted808

    gravity system, loud noises

    Old boiler was replaced with Valiant 425. The customer is complaining- rightfully so, sometimes when the heating is on there is very loud noises from the radiator/pipes - that wasn't there before. I've been back and rebalanced the system, a few times - as it seems to keep loosing the...
  17. O

    Gravity fed hot & cold taps - pressure the same??

    Hi everyone, My first post here! :).... Let me start by saying I am not a registered plumber, but I am an experienced DIY enthusiast, with many successful plumbing projects behind me and keen to learn. I have a fairly basic question - hoping you can help; I am currently doing work at a flat...
  18. R

    Gravity feed combi boilers

    Is it time for manufacturers to make a gravity feed/expansion combi boiler on the primary side. When I was a plumber many years ago I think about 1982 I remember installing an optional gravity feed boiler instead of a presure system. I was never called back to the boiler. Any thoughts
  19. F

    Conversion from gravity fed heating to fully pumped air issues

    Hi All. I hope you can help me. We have a 1970's 2 story house with Oil fired heating. The boiler is a Worcester Danesmoor 15/20 DF. (Its the original boiler from 1976). It is floor mounted in the kitchen in an alcove with the flu / chimney going directly up through the centre of the house...
  20. GQuigley67

    Gravity to sealed question

    got an open vented electric thermal store I want to convert the heating system to a sealed system due to pipework being above the F&E. boiler is in airing cupboard and pipes drop from loft to rads, the boiler is 9kw so I need a plate heat exchanger, was wondering if taking one from a Combi would...
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