under floor heating

Underfloor heating and cooling is a form of central heating and cooling that achieves indoor climate control for thermal comfort using hydronic or electrical heating elements embedded in a floor. Heating is achieved by conduction, radiation and convection. Use of underfloor heating dates back to the Neoglacial and Neolithic periods.

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  1. Qwerty89

    Best practice for a large (120sqm) tiling job

    Hi all I’m so glad to have stumbled upon this forum, which seems to be a treasure trove of advice. I wanted to put my own situation up, and ask for some advice from the specialists on here! I’ve added the details, as hopefully this helps others too… Situation Ground floor renovation job...
  2. D

    Floor tiling - dot and dab over electric under floor heating

    Bathroom fitter says this is the correct way to lay tiles and nothing in the rule book says he can’t dot and dabb
  3. D

    Waterproof floor build-up over cement backer boards

    Hi everyone, I'm looking for some advice on final floor buildup. We're installing a shower tray onto ply (with grab addy), it's 1700x800mm so should perform as a wetroom, closed on all sides apart from a bit at the end of one side to get in and out. So my question is about the rest of the...
  4. N

    Are insulation boards needed?

    Hello, I’m just having some work done in my house and decided to go with underfloor heating. Seen some other comments about using underfloor insulation boards. Asked my builders who said not needed as would raise the floor too much. Just wanted to check before work starts. Floor is concrete...
  5. B

    British Ceramic floor tiles

    Can anyone let me know if you have used British Ceramic Florence Oyster floor tiles with underfloor heating? Concerned they may crack.
  6. R

    Commissioning under floor heating

    Good evening. Could someone kindly give me an idea of the process of commissioning water fed under floor heating which has been set in sand and cement screed. It’s fully dried and is ready to be commissioned record I may it and tile it. I’ve got some knowledge but it would be great to gain some...
  7. A

    Screed \ Under floor heating advice

    Hi, We have had a screed (anyhdrite) with wet underfloor heating put down recently. After a few weeks they turned on the heating and then after a few days a small dark spot appeared, this grew in size to a 10cm elongated circle. There is metal pipe coupling directly below. We suspected a leak...
  8. R

    Electric UFH Under floor heating, Hardie vs Ditra

    Hi Guys, Opinions please, upstairs bathroom, brand new 22m chipboard, new install. I have always gone with 6mm Hardie Glued and screwed, then cleaned up acrylic primed and wire layed on Hardie and taped down, then latex ed over with 2 Part SLC, then tile? Customer/electrician has suggested...
  9. Wishiwasatoptiler

    Wet under floor heating up cycle

    Hi Peeps Done a fair bit of reading on how the wet under floor heating should be warmed up prior to tiling and then after. But theres a fair bit of difference both from advice from screeding firms thats given to customers and from info online. Thought it would be good to seek clear advice thats...
  10. P

    Looking for advice on tiling over UFH

    Dear Experts! Here's a homeowner looking for advice about a home renovation project. It's a mid-terrace property built in the 70's, located in southeast London. I'm planning to retrofit wet UFH to the whole ground floor and laying procelain / ceramic tiles on top. There are two rooms to be...
  11. F

    Ditra heat duo under floor heating

    has anyone used it? At the moment there are a few brands competing in this market of uncoupling / underfloor heating combo's, but this ditra duo claims to have a special thermal fleece backing that insulates and pushes 80% of the heat upwards. I'd be interested to know how that compares to an...
  12. F

    Quartz and under floor heating

    Alright chaps, Had a call about a job which I have to quote, Not got the full info until tonight but what I have is, 35 sq m, multi room, quartz. Also there's ufh wants fitting first, they apparently have all the materials supplied by tile giant. I'm getting more info tonight. New build onto...
  13. B

    Under floor heating tester

    Bought one of these for testing under floor heating, you can leave it connected whilst installing and if any problems will sound an audible alarm, and nice and quick to test before, during and after installation and screed. ;)
  14. M

    Tiling in a room with suspended and concrete floor, with under floor heating

    Hi. We are tiling a ground floor kitchen that is half suspended floor (100x50 joists on 300 spacing, with supports every 1200mm) and half concrete slab. The concrete slab has just been poured and once insulation has been added, it will have UFH pipes buried in the screed top layer. The tiles to...
  15. Rick-o

    Which way do you do it?

    Hi all, Was talking with an adhesive rep yesterday and he was demonstrating some slc.. his demo was over decoupling membrane which raised the question.. Do you level over the decoupling membrane or under it? If you had under tile heating for example would you put this on the levelled (wood lets...
  16. S

    are expansion joints in tiling pointless if there is no expansion joint in the screed ?

    hey all just got a job that requires me to tile 150m2 floor using porcelain wood effect plank tiles the main area ill be tiling is around about 100 m2 with the other 50m2 spread over the house in hallways..bathrooms etc the thing is the main area ill be tiling (100m2) is a power floated...
  17. JMC tiling

    Awkward wetroom floor.

    Evening all, got a job to start next week with a wetroom floor that is gonna be a bit of a challenge. Situation is as follows: A suspended floor with very little deflection if any. 1600x800 former tray going in that is going to be tiled in 16mm thick encaustic cement tiles envelope cut...
  18. jobdone

    Electric UFH Damaged electric under floor heating cable

    I have managed to damage the cable on my kitchen floor while making a few modifications to the floor. Does anyone know a repair company in the west surrey area. GU24 post code. Many thanks
  19. A

    Epoxy Grout on a Heated screed / Under floor heating

    Can you use expoxy grout over a heated screed or an under floor heating system? YES YOU CAN. Mapei, Ardex, BAL , Tilemaster, Mapei and Weber all say there is absolutely no problem in this procedure. There are a few guide line to follow when doing this: 1. Make sure the screed has been...
  20. A

    Best Bathroom Flooring, For Wet Ufh? Heat Throughput!

    We are looking to have wet UFH installed under our main bathrooms floor. It is a new build house with joists 600mm apart. I was intending on asking the plumber/builder to noggin heavily the floor, back it out with Kingspan/celotex and then run UFH pipes through the notched noggins. What...
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