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  1. G

    UFH manifold

    Can anybody tell me what make this manifold is?
    • gerardwrenn
    • Thread
    • america manifold ufh usa
    • Replies: 3
    • Forum: USA
  2. townfanjon

    UFH auto balance valves

    Guys , customer is having problems with his ufh , not heating enough ,cooling down etc etc,he wants me to fit some auto balencing actuators / valves , I have no experience of them at all, and honestly cant see the point of just trying them for the sake of it . System is in screed and is approx...
    • townfanjon
    • Thread
    • america auto balance ufh usa valves
    • Replies: 7
    • Forum: USA
  3. S

    Ufh or rads upstairs?

    Hi there, ufh is being installed on the ground floor of a new build highly insulated dormer house, 120m2 on ground floor plus 90m2 on first floor. The design flow temp will be 40 deg C and I'm thinking of using radiators sized for 40C on the first floor, Should I consider underfloor heating...
    • surfcob
    • Thread
    • america cold radiator hot rads ufh upstairs usa
    • Replies: 2
    • Forum: USA
  4. D

    UFH system queries

    Hi, Any help or opinions appreciated on this topic. Summary - last year bought a 90’s build house that had a wet UFH heating system designed and fitted to downstairs by NU-Heat. It’s the last of the santoprene rubber contra flo systems. The floor is a suspended timber type where the pipes are...
    • d307hpo
    • Thread
    • america system ufh usa
    • Replies: 4
    • Forum: USA
  5. L

    Help with Polypipe UFH

    Hello, I am new here and have come looking for help. I live a small 2 floor ( 1 bedroom house) with Polypipe underfloor heating. the UFH is upstairs and downstairs. Its been installed for around 6 years and worked fine, I have 2 single RF receivers under the stairs ( this is it Polypipe RF...
  6. T

    Max UFH Temp = Lukewarm Rads?

    Hi, Not long in a new build house and getting to grips with the heating and everything else. We've a Nibe F4020 heat pump, UFH for downstairs heating and rads/towel rails for upstairs. The upstairs is on a single zone with a thermostat on the landing (makes no sense to me, but whatever.) The...
    • TheMiddle36
    • Thread
    • america cold radiator hot rads lukewarm temp ufh usa
    • Replies: 15
    • Forum: USA
  7. A

    Polypipe UFH manifold temperature conflicts

    Hi all. Hope all is well and safe. I need your advice please. I have a Valliant boiler serving the CH and DHW (megaflo). Just recently, we’ve had underfloor heating installed. Before the UFH was installed, the boiler flow temp was set at 65C (it could be adjusted to 75C) using the -/+ buttons...
    • Amarka
    • Thread
    • america manifold polypipe temperature ufh usa
    • Replies: 7
    • Forum: USA
  8. L

    UFH Advice required

    Good Evening, We live in an old stone farmhouse which we are steadily 'improving' as the years go by. The heating is provided by a CTC GSi 12 GSHP feeding UFH in the kitchen and Dining Room and radiators elsewhere. The time is fast approaching when the bathroom is due a workover. In common...
  9. whatsthenews

    Help us understand how this UFH system works please!

    Hi folks. Sorry this is a long one. I'll try and keep it organised. Son has just moved into a purpose built (2013 ish) 4th floor apartment as a tenant. No gas in the building. Triple glazing. 1. The letting agent led him to believe that the electricity supply was on an Eco 7 meter. He didn't...
  10. S

    Air to water heat pump with ufh, how many zones?

    Hi, For a small house (100m2) with and air to water heat pump and underfloor heating, how many thermostatically controlled heating zones would you recommend? There are 3 no. bedrooms, a bathroom, hall, sitting room and kitchen/dining room. The house will be rented out so providing a zone for...
    • surfcob
    • Thread
    • air air to water forum heat heat pump plumbing pump ufh underfloor heating water zone zones
    • Replies: 3
    • Forum: Plumbing Zone
  11. IanAitchi

    Strange UFH behaviour at manifold

    Hi, Hoping someone can comment on whether what I see happening at my UFH manifold is OK, or whether there is cause for concern. I'm not an expert on underfloor heating, Our system was fitted about 10 years ago and has worked flawlessly with zero issues all this time. As you can hopefully see...
  12. A

    Polypipe UFH Flow meters - does anyone know the measuring scale?

    Hi all. I have a Polypipe UFH manifold with flow meters for each circuit. I’ve worked out the pipe length and know what flow rate to achieve BUT the flow meters do not have any scale. All I have is min (top) and max (bottom) and nothing in between! The Polypipe product code is PB129FM for the...
    • Amarka
    • Thread
    • anyone flow measuring meters polypipe scale ufh
    • Replies: 4
    • Forum: DIY Plumbing Forum
  13. D

    Unsure if wet UFH is working - advice on diagnostics needed please.

    Hi, I’m hoping someone can help – I need a bit of advice / help as I'm not sure if the recent cold spell is too much for the UFH in the main living space (it's a barn conversion so 25ft high vaulted area) and I've checked all I can think of. It's 15 degrees despite all looking to be OK to me...
  14. A

    UFH actuator has started to close way before the room temperature is reached!!!

    Hi. First time poster here. My UFH doesn't heat up like it used to. I've isolated the issue (I think). It seems that whenever there is a call for UFH heat, the boiler fires up (like it used to), the actuator hums and opens up, the pump on the UFH manifold starts to run and the various valves on...
    • Amarka
    • Thread
    • actuator before close started temperature ufh
    • Replies: 10
    • Forum: DIY Plumbing Forum
  15. A

    UFH single zone and radiators with single thermostat and open Therm vs multi zone with

    I'm in the process of designing heating for a new property. Downstairs there will be a radiator in the lounge, utility room, toilet and the garage. Upstairs there will be radiators in 4 rooms and 2 bathrooms. Bathrooms upstairs will also have dry ufh and toilet and utility room downstairs will...
    • Andree
    • Thread
    • america forum multi plumbing radiators single thermostat ufh usa zone
    • Replies: 5
    • Forum: Plumbing Zone
  16. J

    Wiring for ufh zone Worcester greenstar heatslave 18 25

    Hi, first im gas safe registered so know a bit about wiring but my own boiler is giving me a head ache. Worcester greenstar heatslave 18 25 oil i fitted a nest just linked ch from boiler demand to programmer demand all good. I now want to wire in another stat for my ufh but dont know what to use...
    • jakeh83
    • Thread
    • forum greenstar heatslave plumbing ufh wiring worcester zone
    • Replies: 3
    • Forum: Plumbing Zone
  17. J

    Temporary gas water heater for ufh

    First post. Limited experience of plumbjng design but adequate soldering skills and am not too shoddy at tightening threaded connections... What do you think about using a cheap instant water heater (300 quid variety) to heat a buffer tank for underfloor heating. Gas bottles as no town gas...
    • Justin Adie
    • Thread
    • gas heater ufh water water heater
    • Replies: 8
    • Forum: Ireland
  18. F

    Large UFH with electric boiler

    Have a large ufh job to do 250m2 with low profile boards, 12mm pipe, 150mm spacing. Customer does not want gas in the house so wants an electric boiler. Unvented cylinder will be direct so boiler will only be running ufh. 2 manifolds to be installed 3 phase will be installed, but this means...
  19. R

    UFH is it worthwhile ?

    Hi , thanks in advance for taking the time to read my post. I’m currently about to start renovating my kitchen / dining room, I am looking at the idea of putting 1 zone UFH in .The construction is a suspended timber floor on dwarf walls. I was looking at the metal spreader plate with the...
    • Rotor
    • Thread
    • america ufh usa
    • Replies: 3
    • Forum: USA
  20. C

    No flow through UFH?

    Hi Guys, see attached pics. Can anyone help with the following issue; I had UFH system installed last year for my kitchen extension, the system was working ok when the plumber finished but as it was completed in the summer months the system was left off until required during the winter months...
    • Cliff11
    • Thread
    • america flow through ufh usa
    • Replies: 10
    • Forum: USA
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