boiler

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  1. Michaelwgroves

    Boiler Fused Connection Unit location

    I need to wire a new system boiler, the obvious place to put the supply is with the control unit which powers the boiler. But should the FCU be next to the boiler in the same way any isolation switch would be located close the load. This would still power control unit, but also need cable coming...
  2. L

    3 Nests, Boiler, Megaflo and UFH - wiring assistance

    Hi, I'm doing a refurb of my house and as part of that all of the old plumbing and electrics have been replaced (by their respective tradesmen). In the new world order the downstairs heating is run off a 9 port polypipe ufh heating manifold and a new system boiler and megaflo have been placed...
  3. H

    Protecting a boiler with a relay

    I am fitting a Heat only boiler that just serves the radiator circuit, the boiler has its own dedicated block terminal connector on the PCB but I cannot connect the pump to it as we normally do, the pump is a commercial type and Worcester Bosch have stated it will damage the PCB because of the...
  4. X

    Central heating problems as programmer not bring on boiler fixed

    A client has decided to attempt a dual programmer replacement and made a mess, i have reconnect everything as following but the boiler and programmer arent working together, just wondering if any one would have a look at the connections to see if i missed something or if they have another idea...
  5. Soulsurfer

    Boiler problem Camray 3 Boulter / Buderus.

    Hey all have an old boiler looks like C+, I have had to use an rf mains link to act as a remote switch line if you get what I mean from cylinder stat into dhw valve, valve motors around and goes to boiler in wiring centre via rf link and calls boiler in, only issue is that boiler is also...
  6. S

    Combi Boiler reverse polarity

    Hi sparks. Gas safe plumber here please be gentle. Just went to a boiler breakdown. I traced the fault to the room thermostat so I linked it out on the pcb board in the boiler. The boiler is working fine now. 2 year old B&Q combi. While I was there I checked with my multimeter the supply...
  7. M

    Off peak switch for boiler

    I've moved into a new flat and have managed to change my tariff with EDF to a better value plan. There is a cheaper price for evening use. I have two switches on the wall and connected to my boiler one that says "off peak". They were both switched on when I moved in and I am not sure how it...
  8. the pict

    Boiler relay options

    A new. 10k boiler has been installed where there is an existing shower normally i use a RL1 voltage relay but is there perhaps a current sensing relay which can be used instead Pict
  9. R

    Wireless contacter for boiler enable

    I am looking for a 2 part contactor to transfer a boiler enable signal from first floor to ground floor where there is no practical way of running a cable. In short the unit needs to receive a 230v call for heat from the wiring centre and send an RF signal to a receiver contactor that will call...
  10. K

    Surface mounted wiring into recessed box for boiler?

    We are now 18 weeks into a six week project. There are so many things that just seem a bit botched. I'd be grateful for any advice - is this usual, legal, acceptable? 1. The electrician suggested a grid pattern for down lighters but now that the plastering is done the lights are very off...
  11. W

    Need some help connecting an oil combo boiler

    First time connecting an oil combo boiler. I have a Honeywell wireless room stat and 2 channel programmer. Could anyone with boiler experience give me some guidance please? Upload the image directly to the thread: The most awesome images on the Internet - https://Upload the image directly to the thread.com/a/j1ZuV
  12. A

    Worcester Boiler and Uponor underfloor heating

    afternoon, I am currently doing a rewire and have come to the connections for the heating system. What I have is a Worcester Combi Boiler and an Uponor Underfloor heating manifold. I also have two zone valves 1 for radiators and 1 for underfloor, I have a thermostat in place to control...
  13. M

    Splitting of UFH and Rads via Stat

    Good evening. Finally the futility of the design of my heating system has led me to try and alter it. Central heating is something i'm not brilliantly versed in. To keep it short, presently a BG WR-1 wireless clock controls the rads and the manifold via the switched output, powering up to the...
  14. jedder

    Fitting Hive 2 to a oil boiler in Spain

    Hi all, Can you help, I have bought a Hive 2 active heating (heating only version) to replace the thermostat we have in spain, Its an oil combi boiler (Tifel - Eurofel 40 See pic) The exising thermostat / control only has 2 wires goin to it from the boiler (see pic). Can someone give me an...
  15. J

    Nest wiring for combi boiler

    Boilers a glow worm home30c combi I have run a 5 core from boiler to where my spur+nest heat link will be Am I right by following: Spurs LNE into LNE of nest heat link Link out L to common (terminal 2 in heat link) Rt boiler connection to terminal 3 of heat link Then 12v from heat link...
  16. G

    Boiler with only l-n-e

    I had to extend a flex for a boiler today that was being relocated to an opposite wall, the flex was only 3 core and the boiler only had live , neutral and earth terminals . I've only been doing heating on new builds for about 10 years and not come across this as usually have a permanent feed...
  17. Rocboni

    Frost protection on combi boiler

    Quick hypothetical question, Combi boiler in garage with frost stat and pipe stat on return pipe, two zone valves for upstairs and downstairs, does the frost stat have to open one of the valves or just fire the boiler? Do they have a bypass valve?
  18. B

    Main bonding flow and return to oil boiler

    Hi this is pickling my head and any advice is appreciated. I have a TNCS system. I have an external oil boiler fed from the house in a detached garage. The main water in the house and the flow and return from the boiler are all bonded back to the house MET from within 600mm of where they...
  19. Malcolm

    New combi boiler & wireless programmer.

    Hi I don't usually get involved with central heating wiring systems, but I had a new boiler fitted last week and I thought it would be a good idea to get to know how they work. Could someone just check that i have got this right please. The boiler is an Alpha Intech 34C combi, the wireless...
  20. M

    Keeping Horstmann 7 on all day?

    Hi all, I have zero experience with boilers and timers so hoping I can clear up some confusion. I have a Horstmann Electronic 7 with a simple digital interface controlling a Heatrae Sadia megaflo tank. I need hot water at irregular and different times of the day throughout the week. I can set it...
    • Made135
    • Thread
    • boiler horstmann setting timer
    • Replies: 7
    • Forum: UK Electrical Forum
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