underfloor

  1. C

    Underfloor heating inhibitor.

    We have a Daikin Air Source heat pump feeding our hot water and under-floor 8 port manifold heating system. The Daikin has just had its annual service and the engineer commented that the water looked discoloured and that the inhibitor needed replacing?? Is this an easy procedure? I'm pretty...
  2. B

    Underfloor heating boiler pump always on

    Hi. Newbie question, couldn't find a similar one. When my underfloor heating pump is on, the pump on the combo boiler is also on, this is both when the boiler is calling for heat or not. So, gas light on boiler pump on, gas light off boiler pump on. (Worcester Bosch greenstar 30cdi) Is this...
  3. J

    Low Profile Floor for Water Underfloor Heating retrofit

    I've installed a wet underfloor heating system over my ground floor subfloor and have just been told by a supplier that I can no longer buy the stiff boards that would have gone under the finish layer. My builder doesn't have experience with UFH so I'm asking for any recommendations for what...
  4. P

    Preparation of concrete subfloor for wet UFH

    Hi All, I am doing a kitchen extension. 3m X 6m, and like to install wet ufh. need help to decide the best way to prepare my concrete subfloor for wet ufh. option 1: mot + sand blinding + dpm + kingspan + dpm+ concrete + ufh boards (18mm) + ufh pipes + screed + tiles option 2: mot + sand...
  5. N

    UFH which one best for wooden and concrete floor?

    Hi All, Need expert's ideas. I am extending the house, I would like to go with water-based under-floor heating. The total floor area is 85 sqm and going to use tiles on top of it. I have 50% wooden sub floor (existing floor) and 50% concrete sub floor (new extension). 1. Can someone suggest...
  6. M

    UFH wiring mess

    Hi wondering if anyone can help we have 11 zones of under floor heating which are linked to 3 separate thermostats. the plumber is different to whoever laid the underfloor so he can’t figure out which actuator / wire links to which thermostat so at the moment each thermostat heats up the...
  7. C

    Evinox problem pressure relief valve?

    [A se TTACH=full]256624[/ATTACH] I have a leaky what I believe is a pressure relief valve on the return of an Evinox underfloor system (see photos). There is a flo tube between the heating and return with a flo control (grey plastic knob in pic) set to maximum (4). Could this be the...
  8. S

    Heatwell thermostat aube TH232 question

    Hi all, I have a few of these Heatwell Aube thermostats in a new property, for underfloor heating. None of them seem to be actually controlling the heating in any way. Its just not firing at all. I've had them checked by an electrician and he's confirmed that there is power, which makes sense...
  9. T

    Which new thermostat to fit? Radiators now, UFH soon as well

    Hi All Apologies if this is answered elsewhere, I couldn't see an answer but I may have missed it I have a crap combi boiler thermostat, I would like to replace it. (It's in the wrong place, hardwired and not very capable) We are having an extension built this year, and will add wet...
  10. G

    Insulating under suspended timber floor... maybe?!

    Hi all, Just had a room stripped back and skimmed, and while deciding on flooring options the idea of restoring the floorboards came up. They’re not in bad condition so that part of it should be relatively painless (if dusty!) but as we’re on the ground floor we’ll need to insulate. It’s a...
  11. E

    Extending my existing (water) underfloor heating

    We had an extension to the house a few years ago and installed water central heating in the new concrete floor. This heats less that half of the floor space of the open plan kitchen / family room. The rest of the floor is the original house floor (un-insulated concrete slab). The builders broke...
  12. P

    Omnie TorFloor UFH - anyone used it?

    I’m looking at this UFH solution for an upcoming project on suspended timber floors. https://www.omnie.co.uk/torfloor/ It’s the only solution I’ve found which gives a low floor build up and is designed to replace the structural floor. It comprises a routed 22mm chipboard sheet with a foil...
  13. hellopaul2

    Dampness around low level underfloor vents

    Hello, I've recently bought a house that was build about a year ago. It has underfloor heating (wet type, running off an air-source heat pump). The other day I noticed the low-level underfloor vents had water around them, as you can see in these photos. 20190101_141831 by hellopaul2 posted 9 Jan...
  14. A

    Underfloor heating controls - a conundrum

    Almost a year ago I was trying to resolve a few issues with our underfloor - see orignal thread in plumbing here: https://www.diynot.com/diy/threads/underfloor-heating-a-couple-of-issues.493454/ The meachancal side is fairly under control (!) now nut the control side - electrically, is still...
  15. ritchieee

    I'm sorry... another suspended floor insulation question!

    Hi folks. I've got an 1840s Georgian terraced house. The living room is blinking cold this time of year! I guess it's caused by draught, so I'm looking to insulate under the suspended floor boards. There are millions of posts on this and I've looked through a good chunk, receiving different...
  16. K

    Orangery - Need some advice

    Planning an orangery extension to our house. Originally thought, underfloor heating and radiator to keep it warm.. But now not sure as I have been reading things. Firstly, can I add a radiator as an extension of the house heating? (Combi Gas boiler) Can I add underfloor run as extensoin of house...
Back
Top