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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. A

    Completely clueless underfloor heating

    I live in a property where underfloor heating was already installed by a previous owner. No manual was left, not even sure of the model/setup of our system (other than the fact that it’s a wet system linked to my boiler/central heating system & I can see these pipes behind a cupboard). It is...
  2. M

    How to get underfloor heating flowing

    I am seriously stuck with an underfloor heating system which isn’t getting warm enough. I have previously had it working perfect in January however is been off a year and now decided no to play ball. I have changed the reliance thurmogaurd mixer which has helped and the manifold is now getting...
  3. D

    Advice on faulty water underfloor heating system

    Hello all and hope everyone is well, New to the forum and would be very grateful for any expert help. I live in a small flat that has underfloor heating zones in living, bedroom and bathroom. Unfortunately, the floor no longer heats up when I activate the bedroom and living room zones...
  4. W

    Polypipe underfloor heating not heating up properly after a few years

    Had polypipe underfloor heating installed around 4 years ago. Flow rate used to be around 2.5 l/m now its just over 1 l/m. Tiled floor now is heat patches I have a nest connected to this also. And 3 zones come on at once in same port on slave unit I've changed the pump, diverter valve and...
  5. R

    Underfloor heating pricing

    Hi I have a 600 Meter square new build commercial job to install UH . I am mainly a domestic plumber and this job is quite big for me. And i was wondering if i could get some ideas on how to price the labour. looking around 2 weeks to complete the job with 2 men and a apprentice. any help would...
  6. I

    Underfloor actuators working on one system but not on another?

    Downstairs I had a 12 port Hetta underfloor system installed by a plumber. Upstairs I installed an 8 port Hetta system myself using the existing pipework which had an old system on. Both systems are now fully Hetta with exactly the same components on (wiring centre, manifold, actuators...
  7. thedoomguy6312

    SMART thermostats mixed underfloor radiators for ashp

    Hi all, Would value your input. I have recently replaced a boiler with an airsource heat pump. The heat pump feeds ground floor and 1st floor underfloor circuits as well as radiators on 1st floor and second floor. Rooms with underfloor have thermostats (but they are not smart). The radiators...
  8. R

    First Underfloor heating install advice and tips

    Got an underfloor heating to install and Ive done a few repairs on manifolds etc but this is the first design and install for me. Advice and tip requested. The job is a kitchen extension with under floor heating this .will be added to the existing rad heated house. The new heated areas will be...
  9. L

    Underfloor Heating Manifold - what brand?

    Hi, I am trying to see if anyone recognises the brand of this underfloor heating manifold? I think it's about 22 years old. I'm trying to get more details to see if I can change the faulty actuator. Any suggestions welcome. Many thanks, Mark
  10. C

    Underfloor Heating broken

    Hello Underfloor heating installed in 2019 - no probs at all. Suddenly stopped working yesterday. Thermostat is starting the pump, and lights come on. Pipe is very hot at point 1 - and cold at point 2 I have also noticed a leak at point 3 My theory is the motorised valve has broken - and...
  11. A

    Underfloor heating enquiries

    A friend wants a radiator moved but has underfloor heating in the kitchen. Do I need to drain the underfloor heating down or is it completely separate
    • Anonymous
    • Thread
    • america central heating system heating radiator underfloor underfloor heating usa
    • Replies: 1
    • Forum: USA
  12. S

    Underfloor heating problem

    Hi there, I’m in a new build property, approx 6 years old and our underfloor heating system has been running fine up until now. We have underfloor heating both upstairs and down stairs, upstairs is fine, but since last week the downstairs has been a lot cooler and is not getting up to...
    • Spindlerm
    • Thread
    • america central heating system heating hep2o problem underfloor underfloor heating usa
    • Replies: 2
    • Forum: USA
  13. C

    Underfloor Heating Suggestions

    We've just moved into a house where there is underfloor heating in the lounge. It's not a big lounge yet there are 2 x Heatmiser PRT-WTS controllers - one for the front and one for the back. The Heatmiser controllers no longer work (Heatmiser say they're too old and I need new ones) but they...
    • capezz
    • Thread
    • heating heatmiser pulsar suggestions underfloor underfloor heating
    • Replies: 11
    • Forum: Central Heating Forum
  14. J

    Underfloor heating is stuck on - actuator issue?

    Hello. I am here for some advice please. We have a water underfloor heating system in our house and have recently had some issues with one of the zones seeming to overheat with the heat still being sent despite the thermostat not sending demand or even being on an all. These are all new...
  15. M

    Zone vales underfloor

    Has anyone seen this configuration before with zone valves installing under the floor in the joist area with an access trap. Not ideal I know. Is for zoning a downstairs drop system and upstairs 15mm up though the floor. Boiler in the kitchen with pipes exiting upwards from the boiler via stand...
    • Matt0029
    • Thread
    • america forum plumbing underfloor usa zone
    • Replies: 6
    • Forum: Plumbing Zone
  16. H

    Underfloor Heating Pump goes into a blocked error (Grundfos UPM3)

    Hi all! Went to stick the underfloor heating on and the pump started making a weird noise and the first red LED and the last amber LED are on - which per instructions means that the pump is blocked and it is necessary to deblock the shaft. It has a deblocking screw in the centre of the control...
  17. A

    Insulation installation around kitchen prior to underfloor heating

    Hi everyone. A slight conundrum im hoping to get some educated advice on from people who actually know. Ill be having the whole of my downstairs dug up in order to install insulation (none present) with a 75mm screed on top. Ill then have a wet system underfloor heating installed. My...
  18. T

    Have added an underfloor zone to existing heating have issue with temperatures

    So I have just added an underfloor zone to a house extension. Boiler is Worcester Greenstar 30Cdi. has a Comfort II RF stat fitted that controls the radiator zone. I have added a zone valve to my new zone and used the 230V side of the control board to fire the boiler. the boiler fires fine but...
    • Timlazisa
    • Thread
    • added central heating system existing forum heating issue plumbing temperatures underfloor zone
    • Replies: 0
    • Forum: Plumbing Zone
  19. S

    Wet underfloor heating adding a rad.

    Hi there, just after some advice. I have an underfloor system installed and at the time of laying I had a spare loop put in with a view to adding a conservatory. I've now changed my mind and want instead to add in a single radiator. I can see the unbroken loop protruding into the conservatory...
  20. P

    Underfloor heating, radiators and Nest

    I currently have a radiator central heating system, controlled by a Nest with OpenTherm (combi boiler, no zones/valves). I'm now getting an extension built which will be one big room from the new structure and the existing kitchen and dining room. I'd like to install underfloor heating in this...
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