heating

  1. F

    Fuse box makes humming sound when off-peak water heating

    Video of issue: Hi I’ve noticed a humming from my fuse box when my nightly off-peak water comes on. When I first moved in I had a similar issue, albeit louder / more high pitched. An electrician replaced the contactor at the time. It might be worth noting that that little grey box (I think...
  2. P

    Heating wiring advice

    I have wired a heating system with 8 heating control zone valves and 1 on water,all work ok,problem is it has heating pump which comes on with heating valves but also with hot water zone valve,how can I separate the heating pump to only come on with the 8 valves.
  3. T

    Air source heat pump heating issue

    Hi there, I have an air source heat pump with a few issues: 1. It gets stuck on defrost mode. When it goes to defrost, it gets stuck and ends up becoming an air conditioner in the depths of winter (fun). I suspect this may be a faulty valve (or what ever reverses the coolant) getting stuck on...
  4. C

    underfloor heating do i need a CPC-Mesh

    just checking the regs 753.411.3.2 which state i need to use a conductive mesh connected to the CPC of the circuit. I am installing a flexible heating mat from Warm Up in a kitchen and i dont see any mention of the mats needing a conductive mesh needing to be installed??
  5. G

    polypipe underfloor heating, wifi vs NEST

    HI all, got a holiday let that wants to control heating from their home as people leave it on etc. setup is s plan upstairs HW and heating(rads) , with stat up there for heating downstairs two zoned UFH, bathroom and Lounge ive priced up the polypipe stuff, new center and stats and its...
  6. J

    Electric space heating

    I need to provide heating for a converted warehouse, approx 150 - 180 sq meters. (1 large square room) The space will only needed to be heated for a couple of hours in the morning, I was thinking possibly fan assisted to get the temp up quicker, any suggestions? Thanks Judd
  7. F

    snug stat controller for under floor heating

    recently installed underfloor heating in my glass room 16m2 the under floor heating is 1800w which im told is 160w per square metre anyway issiue is its not reaching the temprature im calling for in fact ive never got it above 22 degree c it can take about 8 hours just to reach 19 any help please
  8. M

    Top electrician and top heating engineer

    Doing a periodic...previous certs show full re wire in 2011...so...the old colour mains tails were obviously just tat they wanted rid of...only 16mm main earth jointed in the board But then...along comes the plumber/heating engineer and decides he'd rather be a comedian
  9. K

    HELP. Back plate wiring to smart heating hub HELP

    Trying to install Drayton wiser hub r... The backplate has previously been wired and is as in picture. Attached. The diagram is in instructions as how it needs to be. Attached. Which wired need to go where.. Please help
  10. Ian1981

    Overload protection to a central heating pump x2

    Is it a requirement to provide overload protection to a central heating pump rated at 2.77amps? I’m kinda under impression that an almost 3 amp pump jamming will get rather hot. I mentioned this to the heating installer who has requested we just installed 2 x isolators for the pumps through a...
  11. GBDamo

    Sanity check regarding electric underfloor heating.

    Been asked to look at an electric UF heating system. As yet it is laid but no connected and no supply is present. There are two mats at 1600w so total 3200w, 14A. My intention is to run a feed off a 20A RCBO via a 20 DP isolator to the thermostat. Run in 2.5 T&E, clipped direct total <10m...

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