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gravity

  1. I

    gravity DHW pumped heating upgrade???

    hi got an install to do 'exsisting, ground floor boiler ,loft (2nd floor) cylinder-FE tank, 28mm flow return to boiler reducing to 22mm onto cylinder coil with the OV and WF from FE tank on 22mm flow just before cylinder. heating pumped ground floor 22mm reduced to 15mm - typical 70-80's set up...
  2. I

    gravity DHW pumped h????

    hi got an install to do 'exsisting, ground floor boiler ,loft (2nd floor) cylinder-FE tank, 28mm flow return to boiler reducing to 22mm onto cylinder coil with the OV and WF from FE tank on 22mm flow just before cylinder. heating pumped ground floor 22mm reduced to 15mm - typical 70-80's set up...
  3. J

    Gravity Hot Water ???

    Post copied from plumbing forum Hi Its now 11:05pm and I can't see the wood for the trees! I have visited a customer today who wants to replace their old Ideal E type RS 50 with a more modern and efficient floor standing boiler on a fully pumped Y plan system (Obviously avoiding the...
    • jaw
    • Thread
    • gravity hot water water
    • Replies: 4
    • Forum: Bathroom Advice
  4. J

    Gravity Hot water ???

    Hi Its now 11:05pm and I can't see the wood for the trees! I have visited a customer today who wants to replace their old Ideal E type RS 50 with a more modern and efficient floor standing boiler on a fully pumped Y plan system (Obviously avoiding the possibilty of "pumping over"). The current...
    • jaw
    • Thread
    • gravity hot water water
    • Replies: 11
    • Forum: Bathroom Advice
  5. J

    Pressure problems.. Gravity fed system.

    Hi, I am very inexperienced at plumbing but I am having a real problem with low pressure in my upstairs bathroom. The problem only affects the cold water taps for some reason, the hot water is fine. The problem first appeared about a year ago when we had the bathroom redone, the cold water...
    • Jreucassel
    • Thread
    • gravity pressure system
    • Replies: 11
    • Forum: UK Plumbers Forums
  6. S

    Is my P-Trap defying gravity?

    The kitchen sink had been giving some trouble for a while, and chemical cleaners wouldn't clear the blockage. After waiting till all the chemicals had fully drained away, I took the J-Trap out and found a horrendous amount of fat build-up - cleaned it all out and reattached it. Water won't...
  7. D

    Gravity feed pipe sizing

    Anyone got any info about pipe size/run lengths v total heat load for gravity systems. All I was ever taught was that you needed to use 28mm pipe to connect your gas boiler to the primary of your HWC. Connecting a woodburning boiler to a thermal store is a somewhat different ball game! Not...
    • Deleted member 2053
    • Thread
    • gravity pipe
    • Replies: 5
    • Forum: UK Plumbers Forums
  8. W

    draining down gravity fed c/h system

    Hello. I'm a novice diy'er and need some help....I need to drain down my gravity fed system but not too sure how to do it. I know how to connect to the drain off valve on the lowest rad but not too sure of isolation or shutting off the water? Do I need to isolate both boiler and the...
  9. P

    Gravity to pumped

    Converting old oil boiler with gravity HW to pumped system with condensing boiler. at present there are the usual feed and return gravity pipes from the boiler. The central heating feed with a pump on the boiler splits for 2 radiators on the ground floor and the rest feeding the first floor and...
  10. V

    Gravity Boiler Heating / Hot Water Query

    Hello - I have a quick question. We have a Ideal Mexico gravity boiler. It's very old (not our choice - landlord's choice). We currently have the central heating completely turned off. However, whenever the hot water heating comes on, certain of the radiators are also heated to a very high...
    • vandyalum
    • Thread
    • boiler gravity heating hot water water
    • Replies: 17
    • Forum: Boiler Advice Forum
  11. T

    Gravity drainage system

    Hi, we have a gravity drainage system. The pipes goes from treatment tanks to the water treatment plant where the water will be treated to achieved regulation. The system doesnt use any pump, just gravity, but for landscape reasons we have to make an arragenment to the pipe, so at the end is...
  12. C

    Gravity system pressure

    Guys, need advice, got a gravity hot water system, head is 12 m but had to install a pump because there is 4/5 Victoria style old baths which can be run at the same time this at moment makes the water die when 2 or more are run. the pump installed blows over the expansion back into the tank...
    • Chalmers7
    • Thread
    • gravity pressure system
    • Replies: 6
    • Forum: UK Plumbers Forums
  13. G

    gravity hot water

    heating working fine on pump but cant get cylinder to heat up for hot water which is gravity
    • GAZZA19
    • Thread
    • gravity hot water water
    • Replies: 8
    • Forum: Bathroom Advice
  14. S

    Mechanical Timer for a pumped heating gravity hot water system

    Can anyone recommend a good mechanical timer for a pumped heating gravity hot water system. Thank you for your help.
    • storeyn
    • Thread
    • gravity heating hot water system water
    • Replies: 1
    • Forum: Bathroom Advice
  15. N

    Anti gravity loop

    Apart from siphonage and air what are the other reasons for installing this so called London loop?
  16. L

    Cap off towel heated towel radiator - open vented heating system with gravity feed

    hi there. Have an old corroding towel rail in our main bathroom which I would like to remove and simply cap off. I was going to simply lift the floor boards and connect the two pipes under the floor after removing the spurs to the towel rail as didnt what to cap each one off individually as...
    • lyndonho
    • Thread
    • gravity heating heating system radiator system towel
    • Replies: 12
    • Forum: UK Plumbers Forums
  17. R

    Gravity hot water not circulating.

    Got asked to look at boiler today as they had no hot water. It was an old Worcester Heatslave oil fired boiler with pumped heating and gravity hot water. The flow was only getting hot about 6-7 inches above the boiler. The whole install is a mess, feed and vent are BOTH 15mm. The feed used to...
    • R1CKY
    • Thread
    • gravity hot water water
    • Replies: 5
    • Forum: Bathroom Advice
  18. E

    Gravity fed system with no open vent?

    Hi all, just viewed a proposed boiler install heat only direct swap. The system is gravity fed but has no open vent? So I presume the water expands back into the cistern. Is this common?
  19. E

    Gravity fed combi

    I'm trying to figure out a problem for a guy with solar heating that connects through a cylinder and then to the DHW inlet at his combi. The warm water from the solar panel is a closed circuit which warms the water in the cylinder through a heat exchanger, the water in the cylinder is static, it...
  20. 1

    Bath with gravity fed hot

    Dear (ladies?) and gents, I'm due to help a friend install a new bathroom suite, and he has chosen a bath with tap holes on the long side of the bath, the side which sits against the far wall...My original thought for plumbing this ridiculous thing in was to buy some of those extra long...

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