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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
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Heating and cooling: UFH on heat plates - any good/best practice?

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    • CommentAuthorMaren
    • CommentTimeAug 21st 2009 edited
     
    We are planning on fitting UFH in our new extension. This will be just one room of ca 50m², fitting UFH makes sense to us after receiving a quote for Thermaskirt around £1600 inc VAT&Del excl installation and UFH on heat plates for ca £2000 incl VAT&installation.

    The Plumber is suggesting fitting UFH on heat plates as we are installing a suspended timber floor. After reading the UFH threads here, I am no longer sure this is the best option as esp CWatters has stated his own UFH is fitted on OSMA boards.

    Is fitting these OSMA boards cheaper than insulation plus heat plates? (Plumber is using polypipe)

    This results in a lower thermal mass so how responsive is your setup, CWatters - and anybody else who has this?

    Is OSMA the best manufacturer for these boards?

    Does the water from the boiler run through the pipes in OSMA boards at a temperature much closer to that used for radiators?

    Does it make noise on heating up? How much?

    When would heat plates be a better choice?

    Is it possible to fit solid wood or laminate or marmoleum (esp marmoleum click) on this type of UFH?

    Any advice would be greatly appreciated.
    • CommentAuthorPaul_B
    • CommentTimeAug 21st 2009
     
    I stumbled across this product yesterday as I am currently installing the companys modular radiant wall panels. http://en.variotherm.at/en/02_produkte/023_fussbodenheizung_kfbh.php. It is 20mm fermacell boards with notching for UFH pipes which then get covered in a further layer of compound. Guess you could insulate below the joists then use these boards instead of 'floorboards' not sure if you'd need to infill between joists to add strength.

    Paul
    • CommentAuthorMaren
    • CommentTimeAug 21st 2009 edited
     
    Thanks Paul, had a look just now and it really does look good, although probably more expensive than the OSMA boards? Company states that this is a lightweight system perfect for retro-fitting existing floors and it does seem to be very thin, too. Thankfully, space is not a problem with our new floor but I might have used that for my old floors - heaps better than crawling around underneath the floor trying to fit 200m plus of pipe or so.

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