Anyone fitted electric underfloor heating?

Discussion in 'General Discussion' started by Merlin Cat, Apr 11, 2018.

  1. Merlin Cat

    Merlin Cat Moderator

    Morning all,
    I’m currently fitting a bathroom and the customer wants underfloor electric heating. They will have a towel rad running off the existing central heating.

    The floor is floor boards that will be cement boarded.

    I’ve never fitted it before. An electrician is doing the controls.

    Any recommendations/handy hints gratefully accepted :)
     
  2. That's disappointing, I thought you were upgrading the camper! :D
     

  3. Me too ...

    I thought you`d finally lost it :D

    :hattip:
     
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  4. Betty the Bay

    Betty the Bay Supporter

    I had considered it for the camper.....seemed logical to me !
     
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  5. It's probably entirely feasible but as the thread the other week on here said it's much easier and cheaper to just buy a £20 fan heater or a small oil filled radiator:)
     
  6. and/or an electric blanket!
     
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  7. you can get the mats, or otherwise it is loose. Mats are easy to fit and come with easy instructions. I did it in one house and was great. You have to avoid places where there will be heavy objects/ permanent bits, so nit under toilet or kitchen units. Someone else did it for me when we moved and they forgot to put thermometer cable under tile and just left it to dangle no underfloor boards making it all rather pointless, but didn't discover till after i paid so had to carefully make hole from underfloor boards and slide thermometer near heating
     
    Merlin Cat likes this.
  8. can join many mats together too, but suppose to test them before laying otherwise invalidates any warrenty
     
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  9. I've done underfloor heating in kitchen and bathroom and hallway under tiles. It's simple enough, the only question being where you put the controller. You have to use adhesive and grout that is compatible but all the tile stores supply it.
    It can be a faff laying out the wires and taping them down so budget some extra time for the job.
     
    Merlin Cat likes this.
  10. [​IMG]we fitted this at a job,and the electrician wired it,be sure to check continuity at every stage


    Sent from my iPhone using Tapatalk
     
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  11. Betty the Bay

    Betty the Bay Supporter

    We haven't got campers for the cheap and easy option!
     
  12. I wish I had been told that 5 years ago:D
     
  13. I have it in my bathroom, at the suggestion of my plumber.
    I think we've switched it on about three times in the last seven years - it must use huge amounts of the electrics.
    A complete waste of time & money.
    It's not hot instantly - because it has to warm through the tiles - so you need to plan ahead.
    If I were to have it done again,
    I'd have hot water pipes running back & forth under the tiles so they would heat up as a matter of course for no extra cost.

    (I'll just go & copy and paste that to my plumbers trust pilot page).
     
  14. I'm looking to put the carbon foil hearing in my puck.

    Have it in my kitchen and works really well. Without it was seriously cold underfoot
     
    Merlin Cat likes this.
  15. How did it add to you leccy bill...

    I fitted similar for someone..
    It doubled their bill...:eek:
     
    Merlin Cat likes this.
  16. Thicker socks that's all you need
     
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  17. Dub and Dubber

    Dub and Dubber Supporter

    It's good as a retrofit if, like us, you're off the gas grid and don't have/want central heating radiators.
    If there's an existing hot water central heating system in place, and you don't mind either digging up floors or raising them, then the water version starts looking more viable.
    It's easy to "zone" your heat, and being underfoot means lower ambient temperatures needed for "comfort" ....
    Bathroom controller has to be outside the bathroom, which can cause problems with setting it up right.
    Our bills haven't been knackered by ours, but they're set almost like a defrost heater in a greenhouse, so not on all the time, and that's all we've needed, with a woodburner available and one or two 500w leccy panels for spot heating.
    Small kit costs about the same as a "posh" radiator.
     
    Merlin Cat likes this.
  18. Dub and Dubber

    Dub and Dubber Supporter

    .... and heat up times are no different to a rad, but get longer the deeper you bury the wires ... and the worse the insulation is underneath!
     
    Merlin Cat likes this.
  19. we've got it in the kitchen and bathroom under tiles

    it's not meant to heat the space so only needs to be on very low, just to take the chill off the tiles really rather than heating the room - if you use it this way it won't be a massive expense for the leccy - we have a controller that you set the temp you want and what time you want it; it does the rest and calculates when it needs to switch itself on/off to achieve the desired temp at the right time. we switch it off entirely for 6 months of the year though, only needed during the winter but during these months it's "on" all the time but governing itself with via the controller.

    one thing to note though, you don't need it everywhere - just on the parts of the floor you use most - there's no point running it all the way to the edges if you never/ rarely walk there.
     
    Merlin Cat likes this.

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