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gravity

  1. R

    Air locks in hot side gravity system.

    I have a repeat call back to a propert where after 4 to 5 weeks the hot stops flowing. All I do is back flow mains cold through a kitchen mixer and bingo it works. But what's causing it? We have 50 gal coffin tank in loft new 48 inch hot cylinder , triton power shower in en suite leccy shower...
  2. S

    ripping out an old gravity fed HW tank and fitting a thermal store?

    thanks for your time for reading this... ** The situation There's a reasonably good gas Baxi back boiler that gravity-feeds a very old hot water tank in an airing cupboard on the landing, header and expansion tanks directly above in the loft. Central heating controller is a Honeywell 7 day...
    • speculatrix
    • Thread
    • fitting gravity tank thermal
    • Replies: 16
    • Forum: UK Plumbers Forums
  3. J

    Gravity HW, pumped CH.

    Hello. A customer has a gravity HW, pumped CH system, boiler is (I think ) an Ideal Classic. Heating is a one pipe system. There is unwanted circulation in rads when the programmer is calling for HW only, above and closest to the boiler. Access is poor, but the CH flow is very hot, return stone...
  4. R

    Gravity fed system.

    Hello I would like some information on a small job I'm doing for my mum. My mother has a gravity fed system with the bathroom and kitchen both on the ground floor where the hot water cylinder is also situated. There is central heating with radiators upstairs and down. There is also the cold...
  5. P

    Pumped conventional gas boiler connected to gravity solid fuel boiler system??

    I am a gas safe registered engineer, I have been asked by customer to change oil boiler for gas boiler.The conventional oil boiler is floor mounted with pumped heating circulation pipes but gravity hot water coil connection. There is also a solid fuel wood burner which flow and return are...
    • pcplumbing
    • Thread
    • boiler gas engineer gravity system
    • Replies: 18
    • Forum: Boiler Advice Forum
  6. B

    Poor hot water pressure on gravity fed system

    Hi all. Got a job on and hw is gravity fed. Renewed bathroom but we had to take the hot into the basement and bring it back up into bathroom (couldn't avoid it really) and cylinder is in the attic but since doing so the pressure has worsened so much so that new mixer shower won't work. Would...
    • Bhoydavid
    • Thread
    • gravity hot water pressure system water
    • Replies: 6
    • Forum: Bathroom Advice
  7. J

    Gravity hot water problem

    Hi guys got a bit of bother with a gravity hot water system. The layout is as follows hw cylinder with spartan tank pumped ch with 2 port valve gravity hw problem is heating is working done but he isn't. Boiler fires for hw but shuts down shortly after. Thinking circulation problem or airlock...
    • jordand
    • Thread
    • gravity hot water water
    • Replies: 14
    • Forum: Bathroom Advice
  8. W

    Kitchen tap suitable for "gravity fed systems only"

    Swirl Divine Mono Mixer Kitchen Tap | Kitchen Mixer Taps | NoLinkingToThis Presumably this can't mean tank cold too as it's a kitchen tap. Anyone come across a tap that says that before? Perhaps the hot side is made in such a way that it would be an uncontrollable jet if put on mains hot from a...
  9. C

    Gravity flow and return from wood burning stove to thermal store ??

    Hi i would like some other plumbers advice who have had good experience with solid fuel and gravity installations. I have just fitted a 300 litre thermal store in a customers new house. The thermal store is upstairs in the hot press and the wood burner downstairs. This house however has...
    • Crowbar259
    • Thread
    • flow gravity return thermal
    • Replies: 8
    • Forum: UK Plumbers Forums
  10. Z

    Gravity fed hw system

    I have little experience on these old systems. A mates bought a house with the setup shown. Had a quick look today, heating on boiler and pump fires rads heat up. Hw only pump goes off boiler cycles, flow gets red hot returns cold. Any ideas?
  11. W

    Air lock in gravity system

    I changed the pump and the three way port valve on a pumped gravity system. I filled the system (it took ages) and now have an air lock on the system, no water upstairs in the radiators. I've drained it down and tried to fill it again, it's even worse now. Would it be best to leave the system...
  12. cr0ft

    Been asked to convert existing gravity HW to fully pumped system.

    Hi all. Usual thing, existing floor standing gas boiler is pumped for CH and running into a 28mm cylinder coil for DHW. I am planning on capping off the CH flow and return at the boiler and converting the system into a y-plan fully pumped system. Question for all. I realise the pipework is...
  13. Best

    Kitchen sink 'spray' mixer for gravity?

    Does anyone know if a monobloc kitchen sink mixer with a spray type head of some sort exists that will work on gravity? Lady really wants one but I have told her they are designed for high pressure & her home is a bungalow, with the cwt just raised slightly above joist level, so only a couple...
  14. R

    Cold Gravity Shower if Mains cold tap on

    Hi we have a very odd problem, our house is Barratt house about 20 years old with standard plumbing a gravity fed hot water system with the cold water tank in the loft, it has two output pipes at the bottom one for the Hot tank via 22mm pipe and the other 22mm pipe to the bath and shower only...
  15. L

    bit of advice 2nd shower gravity system

    Hi. Have gravity system(vented)bathroom and ensuite with a shower(no pump).Planing bathroom upgrade to 2nd shower with bath.What would you recomend to go for: 1.Electric shower 2.mixer shower(with pump)or would it work without pump(concerned about low preassure) 3.digital shower from...
  16. P

    Gravity Fed Air In System

    Hi All, I've just added four new radiators to a property. System: conventional heating system Conventional Potterton Suprima boiler I've bleed the air from the radiators correctly, starting at the bottom then upstairs. All the radiators seem to be getting hot, but the boiler seems switch on...
  17. B

    Gravity DHW with conventional oil boiler with 1 flow & 1 return top connections?

    For the last 30 years our house has been very successfully heated by a 70/90 Myson oil fired cased boiler in the kitchen. 1 flow + 1 return on one side for gravity DHW system and 1 flow + 1 return on the other side for pumped radiator circuit. My heating engineer advised that the boiler should...
    • bigjr
    • Thread
    • boiler flow gravity oil boiler return
    • Replies: 17
    • Forum: Boiler Advice Forum
  18. W

    Advice on pumped CH and gravity HW system

    My CH system consists of a Potterton Suprima 60 boiler, Sunvic 207 Select programmer/timer , Honeywell 4073A 3 port valve Grundfos 15-50 pump on the ground floor with a immersion tank on the 1st floor. I believe it's a pumped CH and gravity HW system. When I switched on HW (with CH off) on the...
  19. E

    Gravity solid fuel with remote cyl + oil

    Hi all, looking for some practical guidance, went to a bungalow to quote on relocating and upgrading oil boiler and controls. Found; 30+ year old house which originally had a Tirolia solid fuel cooker/boiler (now a Stanley stove boiler) with 1 in (28mm) copper rising to attic and traversing...
  20. T

    Gravity heating circuit

    Hi all. Looking to fit addition all rad in each room of house so will have one off of combi & one of solid fuel fire, 4 rads tops going on. Want to have gravity rather than pumped so uses no electricity. House is a 30`s chalet bungalow, any idea on sys design (already thinking 28mm tube with...

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