ufh

  1. G

    Underfloor heating power

    Hi everyone, we're thinking of getting some works done in our loft and have a chance to get underfloor heating installed. I have been reading around on this forum and the web and would like some advice before deciding on next steps. We want to get 3 x underfloor heating mats (UFH) across 3...
  2. E

    Glued Flooring over screed and UFH

    We are in the middle of a small kitchen extension and have installed wet UFH over insulation and screed which was laid on 13th December. We have engineered wood flooring to be installed on top (glue down). Our builder is now saying because the flooring is glue down it will need more drying time...
  3. alex0291

    Minimum space required for UFH (Ed.)

    Good Evening Everyone, This is officially my first post here, and even tho i made a bit of research on the webiste before to post this, i was not able to find the answer to my question (if someone already replied to something similar, i do apologise in advance!) I'm about to purchase a...
  4. T

    Luke warm radiators - on Rad + UFH System

    Our house has a heating system identical to the one pictured. System boiler with unvented HW cylinder, upstairs radiators (12 of them) and about 100 square meters of UFH. All separated by individual 2 port valves. We've recently been renovating the far end of the house (and far end of the...
  5. A

    Multizone system and OpenTherm, mixing radiators and underfloor heating

    I’m in the process of acquiring a new boiler due to the conversion of my loft and the installation of a mechanical ventilation and heat recovery system. I’ve recently discovered that Google Nest is unable to handle multi-zone systems and reverts to a simple on/off thermostat. My preference would...
  6. Auric

    Is this quote for an extra UFH manifold right?

    Hi all I'm having a kitchen extension built and getting UFH installed - the quote for that is £2900, which sounds about right to me. Eventually, I plan to install UFH in the rest of the house myself, so I've asked for a quote for putting a four port manifold on the first floor too as part of...
  7. M

    warmafloor UFH replacement or parts

    has anyone attempted a "diy" to replace the flow meters and valve pins on a warmafloor UFH manifold ? also how easy is it to just replace the whole thing as I'm seeing manifolds for under £200 and wondering if its worth buying parts or just replace the whole thing but I'm not sure how straight...
  8. B

    UFH - Free Design Software ?

    I have an existing 20+ year old UFH install but don’t have the original designs or design Flow Rates per circuit. I have measured up the rooms and using thermal camera can see the circuit spacing is approx 150mm in Spiral layout. I’ve flushed all the loops and cleaned all the flow meters, but...
  9. A

    Underfloor heating on new and existing space

    My partner and I just started building a 4mx7m rear extension. We plan to knock two walls down so the extension is part of a large open plan space along with the current kitchen/dining room (also 4mx7m). We've already decided to install wet UFH on the new part, but we are struggling to decide...
  10. kminbuildinghell

    Floor disaster

    Wondering if anyone could shine some light om my flooring? Ive got amtico spacia, ontop of an electrical ufh system which has been set into a screed. Its been done by a professional but after 2 weeks the floor started bubbling, and the mat that the cables sit in has buckled in several areas of...
  11. S

    Mouldy floor, tanking membrane?

    Need to know if the attached photo is likely evidence of a failed tanking membrane? Background... Recently bought the property and I knew the basement floor needed re-tiling as almost all were cracked. The tiles were laid over an electric underfloor heating system which, the previous owner had...
  12. L

    UFH + heat pump - is it connected correctly?

    Hi, we had UFH installed dowstairs in our house recently, and I'm not 100% sure that it's connected correctly. I'd be grateful if someone could have a look at the diagrams and tell me if what the plumber did makes sense. The house is heated with an A2W Samsung/Joule heatpump. The buffer...
  13. R

    What kind of filter do I need with underfloor heating?

    So I have a combi boiler and two zones, one is underfloor heating and the other goes around 9 radiators. There has been alot of black sludge blocking the heat exchanger the last few years. I am planning to get a filter on the system and I was recommended the Magnaclean Pro 2. However I dont...
  14. D

    CV UFH & warm water supply system for a tiny house

    Hi all, I'm new in here. So I'm working on a tiny house for myself and currently designing the CV & warm water supply system. I'm an engineer myself, but CV, electrical and plumbing are not my core expertises, so I was trying to seek for a professional advice here in the Netherlands where I'm...
  15. infiniteloop

    Swapping ThermoSphere with Tado UFH thermostat

    Hi folks, I want to replace my Thermo Sphere UFH thermostat with a Tado unit so it can be controlled using Alexa. This is the original unit: https://www.thermosphere.com/products/heating-control/programmable-thermostat And this is the Tado one...
  16. T

    Grundfos pump flashing green LED

    I have a Grundfos UPM3 Flex AS pump for my UFH system. The lights on it are as follows: LED 1: Flashing green maybe every second LED 2: off LED 3: Solid yellow LED 4: Solid yellow LED 5: off I understand the yellow LED's indicate the speed/performance setting it is set to and I can change this...
  17. T

    What counts as a cold spot with UFH

    I purchased a infrared thermometer to monitor the surface temperature of my floor with the UFH turned on. I have been monitoring it for a few days in the same spots and recording the data every 2 hours during the day. It seems I have a few hot/cold spots in locations I would expect there to be...
  18. A

    Cold UFH run

    Hi, I have an unknown UFH system (not long moved in) that had to have the blending valve replaced due to a leak. I was worried that this would have introduced air into the system so now am looking to refill/pressurise the system (the emergency plumber just did the blending valve and said it was...
  19. A

    UFH bleed/refill

    Hi all, hoping for some help/guidance on this one. I've got a UFH system downstairs that had to have the blending valve replaced. It was a fairly bad leak so Im assuming the system will need topping up/bleeding but the plumber that replaced the valve didn't do it. Obviously google search...
  20. MeldrewsMate

    Installing underfloor heating throughout...

    Good afternoon all, as part of a major refurbishment of my dad's 90 m2 semi-detached bungalow I am considering ripping out the existing suspended wooden floors throughout (some of which will have needed re-packing anyway), adding insulation, UFH pipework, and screed. It seems simple enough as...
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