central heating

  1. S

    Solar Panels Best option for central heating & hot water w solar PV installation

    Hello, I am looking at getting a solar PV installation (8 x 350W plus 4.6 kWh battery) and wondered how I might best take advantage of it when re-designing the central heating system, with the aim of reducing natural gas usage without spending more money on electricity from the grid. This is...
  2. R

    Horstmann Thermostat

    Hello all, I just moved in to a new flat and it came with this beauty. I have absolutely no idea how to operate it, though and there’s no manual anywhere to be found. The boiler is placed behind a bed so it’s not easy to access on a daily basis. I think I can programme it if I spend enough time...
  3. E

    Central heating pump on continuous

    Hi I have just had my boiler replaced which was a potterton suprima 60l. Heat only boiler as it kept cutting out. I have had a vailent ecofit 425 fitted by engineer but now my pump is running continuously. This wasn't the case before. It's s plan with two heating 2 port valves and 1 hot...
  4. A

    How do I fit a digital thermostat?

    Hi everyone I am hoping someone can offer me some advice. I would like to get a digital thermostat (something like a Nest, but I am open to suggestions on this). However, I am a little unsure on how I would fit it. Does it go in place of the digital thermostat (Drayton, in picture 1) or the...
  5. B

    Do AC powered wireless thermostats exist

    Hi, Does anyone know of a wireless thermostat which can be mains powered rather than batteries? We have very difficult cable routes for the control cables but easy AC supply. It seems a shame to hang the system on batteries if the stats could be main supplied. Thanks in advance.
  6. Mark Wright

    Switch 2 port Valve with Light Switch...........for project only

    This isn't for central heating really this is for a project Can I switch a 2 port valve like bellow .I.e is the "Switch line" 230v? MCB >>> Junction box >> Line, Neutral, Earth >>> 2 port valve ........................................>> Line split to Light Switch >>> Connected to SL/Orange of 2...
  7. A

    Can anyone identify the make/model of this storage heater please?

    Hi All, after a bit of help and wondered if anyone can tell me if they know the make/model of this storage heater. Recently purchased a property and this storage heater does not work, so looking for parts to fix it or may replace. There is no manufacturers make or serial numbers I can see on the...
  8. D

    Nest 3rd gen thermostat power supply

    Hi, I've got the thermostat nowhere near the heatlink to supply 12v, so currently using the usb power supply. This means that it's cannon fodder for a toddler... I was hoping to wall mount it and supply it from a light switch via a 12V transformer mounted in a back box behind it. Would supply...
  9. C

    FCU at boiler

    My parents have have their boiler replaced but the plumbers have left the ageing controls in place. I’m in the process of replacing the programmer etc and have found there are 2 fuses connection units. One is at the boiler, the second is at the programmer (which also isolated the boiler). The...
  10. D

    Pump (and boiler) on even though all zones off

    We have an oil-fired boiler and a three-zone programmer. Some of the time it works fine, but not infrequently we get the following scenario. 20.30 last night: Programmer switches on the upstairs heating and the water heating. OK. 21.00 Programmer switches off the upstairs heating and the water...
    • Deleted member 134500
    • Thread
    • boiler central heating off pump though zones
    • Replies: 2
    • Forum: Central Heating Systems
  11. Doomed

    Interesting place for a room stat

    In a cupboard in the corner of a bedroom I find this
  12. J

    Central heating wiring salus ep210

    Hi there just to ask on wiring for a salus 2 channel programmer. We only have the boiler coming off this at present. We don't want to seperate the rads and water as yet as this wiring is upstairs! So we are using two channel programmer to basically operate the boiler. We have LNE coming off a...
  13. C

    Nest Thermostat - vacation home setting - hot water / heating

    Dear community, as the Pro Nest are too fare away from my place in Italy, I am seeking here for advice. The actual work will be done then by my local electrician - I am a DIY. Goal: I want to install a Nest 3rd generation learning thermostat (not the thermostat E) including heat link to my old...
  14. A

    Hi, can anyone offer any advice as to why the heating would run when HW is called for?

    Hi, can anyone offer any advice as to why the heating would run when HW is called for?
  15. D

    Boiler tripping main fuse

    I have a grant vortex combi boiler and it has started tripping the main fuse when the programmer calls for heat. Any ideas. Regards
  16. E

    Nest thermostat e installation

    Hi I want to replace my current Honeywell CM927 with a Nest e. I'm having some trouble identifying the correct wiring. Please see pictures of current receiver I want to replace with the nest e heat link. Any advice and instructions would be greatly appreciated.
  17. M

    Wifi Connected SMARTSTAT installation

    Hello - I have a Worcester Bosch Greenstar System Boiler. I have a simple Honeywell programmer at the boiler to programme both HW and Heating. I have a Honeywell CM67 programmable roomstat. I have a hot water cylinder with cylinder-stat. All works well but having a WB 30i system condensing...
  18. S

    Immersion heater failure

    I've just rewired my old I.H. and it seemed to be working fine although it was quite noisy. Something tripped the RCD last night and I suspect it was that. Now there is nothing - No noise at all. I don't have the meters to test it unfortunately. Is it likely that it's packed up completely with...
  19. Z

    UK Cable routing central heating wiring centre

    Spaghetti wiring using lots of terminal blocks. Wish to move to Wago mbox. Cable entries too small for cables so need to wire into back of box. All cables are either surface mounted or free running across cupboard. Need to raise Wago away from wall as I don’t really want to bury cables in the...
    • Ziggie
    • Thread
    • cable central central heating centre heating routing wiring
    • Replies: 14
    • Forum: UK Electrical Forum
  20. S

    Can someone please tell me what sort of unit this image is.

    Can one of you kind electricians explain to me what the unit in the image is and the function of the two buttons please.
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