ufh

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  1. A

    UFH pump not turning on

    Hi all, I've noticed that my UFH pump is not always turning on as soon as the stat & valve calls for heat. This results in hot water passing through the underfloor pipes but without being pumped, which means it takes forever for the room to heat. From testing with a multimeter I see that it's...
  2. sythai

    Honeywell EVOHome help please....

    Hi Guys Got a job where property is set up with Honeywell evohome TRVs and controlled via central panel. They're having an extension done with wet UFH going in which Customer wants to hook up and also control via the existing evohome. Anyone know if this is possible without having to buy the...
  3. S

    Wet UFH/ Radiator system

    What’s the best setup for a system that has a heating system with existing radiators but a wet underfloor heating system is being added to a new extension. I will need a 3 channel programmer I assume? The plumber mentioned having it on all the time but just working on/off the independent stat in...
  4. G

    UFH - 4 core old and 2 core new Actuators

    Replacing 15 year old FAR Italian manifolds (2 downstairs, 1 up) with new Warmup units. However, old actuators have 4 core and new only have 2 core. Can someone please explain what the additional 2 cores are used for in the old actuators and how to modify the wiring for the new, and perhaps if...
  5. sythai

    UFH pump help please.... ??

    Hi Guys Just seeing if anyone can help please. Does this pump come with plug in type/ pre flexed feed (hopefully that makes sense!) as cant see how to get inside to wire it up ? Where its located have zero room and struggling to get in and see properly (thanks plumbers !) Cheers Sy
  6. J

    Combi S plan ufh and rads

    A combi is heating 5 ufh zones downstairs and 1 radiator zone upstairs. It has a two port valve for each. My question is, would you fit this with two wiring centres? One normal one that everything goes back to and then a separate ufh wiring Centre that all the stats and actuators connect to...
  7. R

    UFH Thermostat model help

    Hi, I'm looking for some help with an UFH thermostat that I can't find the model of. All I can see is that it's made by Rehau. Installed roughly 2008-09. I'm trying to set the schedule on the device but the symbols aren't obvious what they are trying to communicate so I want to find the manual...
  8. littlespark

    UFH actuator fault. Causes?

    What can do this to an actuator? Overvoltage? Wear and tear? Stuck pin on the valve? This is in the German built kit house I’ve done work in before. The actuator controller is powered separately to the central heating boiler.. each room has a stat, which then opens one or more actuators for...
  9. sythai

    Where do i get one of these please ?

    Hi Guys Got an Emmeti UFH manifold box we wired up a while ago, fuse inside has gone 'pop' for some reason. Not brought this type of fuse before - clear casing, got 4a marking on PCB above. What do I search for is it a special type ? Thanks Sy
  10. M

    Wet UFH Tripping RCD

    Hi. I’ve recently had installed a manifold (including zone valve and pump) for the newly installed Wet UFH in my extension. The system is split into three zones 1) Hot Water 2) Extension UFH 3) The rest of the house which is the original central heating system. All work fine when switched on...
  11. S

    Large electrical ufh install

    Hi all any advice welcome. Long story but at the last moment I have been asked to advise on the possibility of installing electric ufh in a large yoga room as bums are cold on the floor. Room is 90sqm but my thinking for easy install supplier does 12sqm mats so perimeter left out that is 2x...
  12. R

    Smart Heating System - Heatmiser or other?

    Hi all, I have a slightly mish-mash heating set up, in that downstairs I have wet underfloor heating with an individual thermostat per room, but upstairs it's a single thermostat for the entire floor with normal radiators with TRVs. I want to be able to control the temperature in each room...
  13. UKMeterman

    Electrician Jobs Periodic inspection and UFH test required 2 bed flat in Cardiff

    I am looking for someone to carry out an in service inspection and test of a two bed flat in Cardiff and also check that the under floor heating is in full working order. Property is vacant and the testing can be done over the next couple of weeks,
  14. K

    Advise on how to route Power supply for UFH on concrete slab

    We are replacing the flooring for the whole ground floor - it is a circa-2000-build house with concrete slab. We're taking the opportunity to put in UFH at the same time. As it is a retro-fit, we are going with electric to keep the floor raise to a minimum. Going with 150W/m2 heating - which...
  15. Pretty Mouth

    Wireless UFH thermostat

    All of the UFH thermostats that I have ever fitted have had the air temperature sensor integrated into the hard-wired wall mounted programmer, with the floor temp sensor cable also connected directly to it. I have a small UFH job where the UFH will be the primary heat source, so an air sensor...
  16. D

    UFH Heatmiser to Grant Vortex combi help

    Hi I have a heatmiser uh4 wiring centre and a grant vortex combi condensing oil boiler, doing the heat and HW in a small cottage, the room stats, pump and actuators are ok, but I need a bit of help with the connections to the boiler please, the connections at the burner plug are – 1 - sw live CH...
  17. R

    Ufh contactor wiring advice please

    Evening all, Doing a bit of forward planning for an extension with possible electric ufh. i Have worked out room will need 25m2 split between 2 matts 15 and a 10. 150w per square meter matts. I work out as about 16.3 amps in total. Only one stat so a contractorwill have to be fitted.. if...
  18. T

    Rewire of apartment with economy 7, storage heaters, immersion & UFH

    Hi all looking for a bit of advice. I've been asked to price a rewire for a early 70's build 2 bed apartment. The apartment block was built in the very early 70's. It has 2 consumer units (one being economy 7) and appears to have underfloor heating in the rooms, 2 storage heaters & an immersion...
  19. Weezy

    Adding an additional zone to existing heating system, should this work?

    So iv got to add a mini one UFH zone to an existing property's heating system, i have already wired in all the easy parts ie. actuator, zone valve, stat etc. however i just need to hook it up to trigger the boiler. iv attached a few images to try and explain things better, the plumber told me...
    • Weezy
    • Thread
    • adding additional boiler electrical work existing heating heating controls system ufh
    • Replies: 5
    • Forum: Central Heating Systems
  20. S

    Drayton wiser smart hub and ufh wiring centre

    I’ve currently got a Drayton wiser hub 2 channel for heating and hot water. I’m looking to install hydronic ufh (3 zones) and would want to use the Drayton ufh wiring centre. So it can all be controlled via the same app. Would I need to get a new Drayton wiser hub with 3 channels or can I use...

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