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underfloor

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. F

    Downstairs underfloor heating is dead due to electrical problem

    Hello all, I'm hoping someone can advice me on my heating problem - I seem to have lost all downstairs UFH, but the upstairs heating and hot water are fine. About our system: We have a gas boiler feeding an 5 zone UFH system downstairs, some radiators upstairs and the hot water cylinder. This...
  2. S

    Best way of wiring underfloor heating?

    Good afternoon. We have just finished our single storey extension and due to costs, I have done quite a lot of the work myself (GRP roof, kitchen fitting, joinery etc) I also laid all of our underfloor heating pipes and connected to the UFH manifold having spent hours researching both online...
    • sbracken88
    • Thread
    • america central heating system heating ufh help underfloor underfloor heating usa wiring
    • Replies: 6
    • Forum: USA
  3. P

    Underfloor heating

    Can I ask for advice, would it be ok to install underfloor heating as an additional zone on an existing s-plan circuit. The plan would be to have the thermostat for the room with the underfloor heating, operating the new zone valve, and at the same time switching the underfloor pump. Would it...
    • Peterdart
    • Thread
    • america central heating system heating underfloor underfloor heating usa
    • Replies: 7
    • Forum: USA
  4. C

    Underfloor heating

    Just having a bit of trouble with one room underfloor heating. New build bungalow in 2016 with a Daikin Air Source heat pump. No idea what make the manifold is for our underfloor but for no apparent reason the bathroom will not come up to temperature. Being "older" we have always kept it ay...
  5. M

    Question on underfloor heating pipe conduits

    Dear community members, Got a question here in hope someone can help to advise. I recently got my extension done with U/F heating installed. The manifold is in the garage next door so there are four pipes pass through the wall. The work is done and is working ATM. I wanted some plumbing work...
  6. U

    I Need Your Help! Underfloor Heating Not Working - Flat with HIU

    Hi Plumbersforums Experts, I have a question that I hope the experts in this forum can help me with. Our underfloor heating (water) has stopped working a few weeks ago. We live in a new-build block of flats with a central boiler and an HIU unit in our flat. I have asked two engineers to...
    • UFH_MONO
    • Thread
    • america central heating system flat heating help hiu not working power flush underfloor underfloor heating usa working
    • Replies: 9
    • Forum: USA
  7. S

    Mixing Pressure Problems

    I have a rather large wet UFH system. Water is flowing around the system, but I don't get any (or minimal) hot water injecting from the primary boiler flow into the ufh system. this means the mix temp never gets above 20 degrees. I think that the ufh system's pressure might be too high which is...
  8. P

    Hybrid system for heating and underfloor

    Hi All, New here and first post. Currently working with a client on a refurb in Spain and would appreciate your thoughts. The client has a new 500L tank that is currently heated via a boiler and some (defunct) solar panels. He would like to change this method to ASHP and new solar which is no...
    • PJB Spain
    • Thread
    • america central heating system heating hybrid system underfloor usa
    • Replies: 4
    • Forum: USA
  9. A

    Stopcock not turning off all water to house - pipe leaking underfloor

    I’m looking for a bit of advice as I’ve just had a plumber around so wanted to see if his theory matches others. I’ve just inherited a house so wanted to start renovations, when I went to pull up utility tiles noticed they had started coming up..remove them and there is a stretch of cement that...
    • Anp
    • Thread
    • america house leaking pipe stopcock turning underfloor usa water
    • Replies: 7
    • Forum: USA
  10. B

    Biocide for underfloor heating?

    How essential is biocide in UFH? I have brown dirt in nearly all flow-meters and heard different views on how effective biocide (such as X700) may be. Some say brown colour is from iron particles (magnaclean is fitted) other say its from bacteria living in the pipes? On a close topic: Is it ever...
  11. S

    Underfloor heating worries

    Hi guys, I'm having some trouble with my builder and the plumber who fitted my underfloor heating. In a nutshell, the plumber has laid Hetta aluminium pipes over c. 40 square metres comprising of two zones. The builder has then laid around 6cm of semi dry aggregate-based fibre screed. He's then...
    • sj007
    • Thread
    • america central heating system heating underfloor underfloor heating usa
    • Replies: 7
    • Forum: USA
  12. R

    Underfloor heating clean

    Not cleaned one before any tips before i get involved, not sure its a problem or boiler People tryimg to generate work (Boiler insurance engineers)
    • Ricky
    • Thread
    • america central heating system clean heating underfloor underfloor heating usa
    • Replies: 0
    • Forum: USA
  13. bozor

    Dirty water in underfloor heating loops - how big a job to drain/clean them?

    Hi, I have been noticing my underfloor heating taking longer than usual to heat up. Decided to take a look at the manifold and noticed the water in all the loops looking a bit worse for wear: While not super urgent right now, I think I should get that sorted out in the near future. How big a...
    • bozor
    • Thread
    • america central heating system dirty heating job loops underfloor underfloor heating usa water
    • Replies: 0
    • Forum: USA
  14. U

    underfloor heating. one section not heating.

    Problem with activator in just one area of the UFH system. I don't know how to take off the activator to check the pin. No problem with water flow. Not sure how to handle the flex coming out of the activator. I know the pins aren't working as the water gauges are not responding (that's what...
    • una
    • Thread
    • america central heating system check flow heating not heating problem section underfloor underfloor heating usa water
    • Replies: 2
    • Forum: USA
  15. S

    cost effective options to heat a small temporary space.

    Hello I hope everyone and their families are ok at this time. During my own self-build I have to build a small living space (in a garage) two-story for myself and my family of 5 for 1- 2 years before I finish the full-size house. it is temporary but will be approx 30sqm meters downstairs with...
  16. R

    Underfloor heating flow won’t get up to temp

    Hi all. As above having issues with my UFH. Boiler fires up and works as normal . Issue is the return stays cold and as such when the boiler switches off when it reaches temp the flow stays about 35 degrees and the cycle continues . Have had it running with just one short loop open , pump on 3 ...
    • Rb1980
    • Thread
    • america central heating system flow heating temp underfloor underfloor heating usa
    • Replies: 0
    • Forum: USA
  17. A

    Underfloor heating - manifold valve leak

    My underfloor heating has sprung a leak where one of the pipes reaches the manifold. I have tried giving it a bit of a clean and tightening it, but to no avail. Every time I re-pressurise the system is goes again. Is it as simple as shutting off the water supply to the heating and replacing the...
    • andycollins1312
    • Thread
    • america central heating system heating leak manifold underfloor underfloor heating usa valve
    • Replies: 5
    • Forum: USA
  18. M

    looking for a Wunda underfloor heating plumber - London

    I'm looking for someone that has experience with the Wunda underfloor heating system. I'm based in Mortlake SW London
  19. FateFirst

    UFH pump stopped working. Replaced and still not working...possible sensor issue?

    Apologies for any terminology used that doesn't make sense to any plumbers here - not sure on part names etc. so please correct me as I'm always keen to learn and understand 👍 Moved into a property about 3 years ago and water UFH already installed (JG Speedfit One Room). Been working fine and...
    • FateFirst
    • Thread
    • america central heating system issue pump replaced sensor still stopped ufh underfloor underfloor heating usa working
    • Replies: 5
    • Forum: USA
  20. Christopher buzzard

    Uponor underfloor heating valve.

    Can some please identify the valve on this underfloor manifold ( with the black wire coming out of the top). Have an issue where the system is turning off every 10-20 minutes and staying off for a while then coming back on again. The room can’t get up to temperature because of this. Power was...
    • Christopher buzzard
    • Thread
    • america central heating system heating underfloor underfloor heating uponor usa valve
    • Replies: 8
    • Forum: USA
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