mixing

  1. P

    Faulty UFH mixing valve?

    Please advise, With the UFH mixing valve set to give 45^ Flow temp To the manifold circuit am I right to expect this temperature To remain constant whatever the flow rate, if any, there is to the manifold circuits? Thanks
  2. D

    UFH mixing valve not restricting heat to floor

    Hi, I've installed a 2 zone kit that uses an RWC mixing valve, Thermomix with hot in, return to boiler and heat out to Ufh pump and return from floor manifold. From underfloor heating store but basically the same as a jug speedfit Ufh kit. I thought I had a duff thermostat inside the reliance...
  3. H

    Avoid Turbulance in Digital shower mixing valve

    I intend installing a digital shower. The mixing valves would be mounted in the loft. Water feed- Hot 22.mm copper pipe Cold 15mm. copper pipe. I understand that turbulence can be a problem if the mixer valve is close to my last elbow. What length of a straight run would I need to avoid...
  4. J

    Thermostatic Mixing Valve 22mm for hot water cylinder outlet?

    Before I embarrass myself asking a plumber to come and quote for installing a TMV on a hot water cylinder is it possible/advisable? We have holiday apartments and each has an electric shower but all hot water taps (bathroom & kitchens) are fed from an old hot water cylinder, heated by immersion...
    • john999uk
    • Thread
    • 22mm cold cylinder heating hot hot water hot water cylinder mixing mixing valve outlet thermostat thermostatic valve water
    • Replies: 11
    • Forum: Plumbing Jobs | The Job-board
  5. T

    Fernox Mixing?

    Hi all, Old open vented 3 position diverter system. I needed a drain down, clean out etc about 6 months ago whilst some other work was done and the system was filled with 4L of Fernox MB-1. Once the air was removed from the system ( which being a bungalow has never been easy ) it performs quite...
  6. P

    How does Heatmiser control radiators + HW undefloor heating ?

    Hi, thanks for looking. Keen to get some advice please Boiler: Valiant 637 connected to a 300l Megaflow. 13 Zones in total (6 Radiator + 7 HW Under floor heating) Each to be individually controlled via a Heatmiser solution (Wired solution). Keen to understand how each of the individual...
    • Pali
    • Thread
    • control heating heatmiser manifold mixing please radiator radiators undefloor wiring
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  7. V

    Thermostatic mixing valve on an electric instantaneous water heater

    Any one have any experience on installing a thermostatic mixing valve on an electric instantaneous water heater for a basin ? My concern is that electric instantaneous water heaters generally heat water above a comfortable temperature and then can not deal with the demand and go cold until you...
    • VWUK
    • Thread
    • basin cold electric heater heating hot instantaneous mixing mixing valve thermostat thermostatic valve water water heater
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  8. S

    Fitting thermostaic mixing valve

    Have a Thermal store for my underfloor heating & DMF. The store which has a TMV on the DHW take off ... no problems there. I attach a drawing of what it 'was', I have added the shunt pump circuit, used as a de-stratifying stir when DHW called for, normally provided by the boiler pump ... but...
  9. M

    Mixer Tap not mixing - cold spurts out independent of hot flow

    HI there, I'm not a plumber but am considering changing the kitchen mixer tap as I think its not working right, but Im not sure; Its a mixer tap, but the hot and cold water come out of the end unmixed. Theres no aerator on the end (nor any threads wher eone may have been/ may be fitted) and...
    • mr_p_mart
    • Thread
    • cold could flow hot independent kitchen mixer mixer tap mixing pressure tap water
    • Replies: 6
    • Forum: Plumbing Jobs | The Job-board
  10. Meady

    Taps, shower tray, kickspace heater, mixing valves for sale

    Having a bit of a clear out of a load of gear I have in the garage, never going to use it so thought I might aswell sell it, currently on eBay but if anyone's interested I can sell through here :) Hansgrohe Talis S2 Variarc Single Lever Kitchen Mixer | eBay 4 pairs or these - Vado Life Mono...
  11. W

    Thermostatic Mixing Valves

    I had some guy on saying that I should be fitting TMV's on cylinder outlets to reduce hot water temperatures down to 45 degrees C on leaving the cylinder. Apparently he fits his that way! Now I have been involved in legionella prevention in commercial and industrial systems for about 20 years...
  12. H

    Hot water pressure issue, boiler shutting off when mixing cold water in

    Hi all, I am at a complete loss. I have lived in my flat for 2 years, it is on the third floor of a 4 floor block containing a total of 13 flats and my water pressure has always been low, since day 1 of moving in i have not been able to have a shower without the hot water cutting out and going...
    • HJames
    • Thread
    • boiler cold cold water hot hot water hot water pressure issue mixing oil pressure water water pressure
    • Replies: 8
    • Forum: Plumbing Jobs | The Job-board
  13. U

    Low hot water pressure, boiler cutting out when mixing

    Hi all, I am at a complete loss. I have lived in my flat for 2 years, it is on the third floor of a 4 floor block containing a total of 13 flats and my water pressure has always been low, since day 1 of moving in i have not been able to have a shower without the hot water cutting out and...
    • Unregistered
    • Thread
    • boiler cutting cutting out hot hot water hot water pressure mixing oil pressure water water pressure
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  14. A

    mixing 10mm & 15mm

    Is is ok to go from 15mm to 10mm bore then 15 again when connecting to one small bedroom rad? The feed & return pipes across the landing are 15mm, spur feeds are needed from these to a new rad in the bedroom. There are 2 steps up from the landing to the bedroom, there are existing unused 15mm...
  15. M

    Check valve on cold to in body mixer tap

    Hi, does any one fit a check valve on the cold feed to an in-body mixer tap? Heard water regs states you should?
  16. P

    Thermostatic Mixing Valve

    Hi guys, quick question regarding tmv's, I have been asked to install a tmv for a school as the childrens sinks are very hot. They have 5 sinks in a row, would I need a separate valve for each sink or could I use 1 for all of them? Thanks
  17. Chalked

    Hot water mixing valve

    Doing some alterations t a house with a wood chip boiler that feeds a large buffer tank, this has a coil for hot water that is then circulated round the property. the hot water is very hot (70*c) can I fit a mixing valve at the cylinder between the cold supply and hot take off . if so can...
  18. T

    thermostatic mixing valve madness

    Hi all had some new horne 15 tmvs fitted which were set and left on 41 c but for some reason the temperature will not hold within +/- 1c. The temperature always raises up to 43-44~ after adjusting back to 41 with allen key. I have adjusted the tmv back to 41 for a few days in a row and the...
    • tbxr
    • Thread
    • cold fitted heating hot mixing mixing valve property temperature thermostat thermostatic valve
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  19. A

    Mixing valve for underfloor heating

    Hi, can anyone recommend a good mixing valve for underfloor heating with a good temp range. My UHF is connected to an accumulator tank and water temp could be anything from 30-85+ degrees. I've a Robot Compact Manifold and I don't think it gives me the variation I would like. regards Archmoco
    • Archmoco
    • Thread
    • heating mixing mixing valve ufh under floor heating underfloor underfloor heating valve
    • Replies: 29
    • Forum: Plumbing Jobs | The Job-board
  20. H

    Aga

    Been to a house with a shower that runs by pump but when you shut the valve, water stops but the pump keeps going! I measured the water temp at basin....83 c!!! I think it has therefore distorted the flow switches. I want to know what mixing valve I can use to get the temp down....looked at a...

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