nest

  1. therafox

    Why do I have so many thermostats?

    Hey folks, I just recently moved to the UK and the way heating systems work here is new to me - apologies if this is a dumb question. In my current flat, I have an immersion heater which consists of an unvented indirect cylinder (TI120P4) for both hot water and underfloor heating. This is...
  2. C

    Which smart thermostat for Vaillant Ecotec 831 plus?

    I’ll try to keep this as short as possible! Basically the timer has died on my Ecotec plus 831 combi and rather than just replace it with similar I was thinking now maybe the time to go smart and get something that can help my heating system run more economically as we’re off grid so run off...
  3. J

    Nest Thermostat E Heatlink installation (replacing Strom receiver for Valliant ecoPure Plus)

    In the attached photos you can see the wiring and wiring diagram of the receiver I am looking to replace with my Nest Thermostat E Heatlink. My question is around the Common connection. As you can see I have a jumper from L to COM. Am I correct to believe that I should use L (brown wire) as...
  4. L

    Replace Honeywell Programmer and Room Stat with Nest 3rd Gen

    Hi Looking for some advice....I have just purchased a Nest 3rd Gen and are looking to install myself. I have a Honeywell ST9400C programmer for heating and hot water positioned next to my oil fired Firebird Combi boiler. I also have a Honeywell room stat. I have photographed the existing...
  5. J

    Flexicom 18hx manual start

    Hi, I have a flexicom 18hx glow worm with a nest thermostat connected. The nest panel has gone dead so I cannot switch on the heat at the moment. Can anyone explain to me how I can manually start it and override the nest setup. Google are sending me a replacement nest but won't have it for a few...
  6. Romedan

    R6660D with fuse box to nest e thermostat heatlink

    I've had a quick look on the forum and have found similar but nothing I can see that's double cabled and with a fuse box. I think I've identified the black as C and grey as NO via the forum. Question is, what do I do with the wires from the boiler and fuse box. I'm assuming these do not go to...
  7. B

    Advice/confirmation for Nest install for Greenstar 30DCi classic boiler with Integral Diverter Value

    Hi all, I have read several posts and searched the internet and believe I have now got the correct procedure to install a Nest for my Greenstar 30DCi classic boiler with an Integral Diverter Value with a DT20 timer. If I could just get a second opinion, before I proceed it would be really...
  8. A

    Replacing current thermostats to Nest 3rd gen thermostats

    Hi I would like to change my current thermostats to google nest thermostats. This is my current thermostat and inside I don't know if it is relevant but my boiler is Logic Combi ESP i35 boiler and it is dual-zone. I found where are my motorised valves, however, I'm not sure what to do...
  9. KeyGreem

    salus t105rf to google nest wiring clarification (vaillant ecotec pro 28)

    Good afternoon everyone. I hoping someone could shed a little light on my current thermostat wiring. 20201116_163322 by KeyGreem posted 16 Nov 2020 at 4:50 PM20201116_161153 by KeyGreem posted 16 Nov 2020 at 4:50 PM As you can see from the first picture I have Live neutral earth coming from the...
  10. ChingiZ

    Nest Thermostat E. How does it work with underfloor heating.

    Hi. So Combi Boiler Heating type: Water Underfloor heating, Only one Zone. Nest type: Nest Thermostat E (Images For Reference) Just received the Nest Thermostat E and trying to replace it instead of the OLD Thermostat, but I am having some difficulties with connecting the underfloor heating as...
  11. Krzysztof UK

    Wiring Nest Heat Link to Vaillant Ecotec Pro 28 (duplicates merged)

    Hi All, I have got question on installation Nest Heat link to boiler. I have got Vaillant Ecotec Pro28. I currently have Honeywell thermostat and receiver (wiring) has been shown on picture attached. Should I do exactly the same as on the picture above ie: N to N L to L With yellow/ green cable...
  12. L

    Heatmiser UH4 with Nest for Zone 4 and Hot Water

    Hi all, I've got my UH4 setup with nest thermostats for my UFH zones, the hot water is on a timer. the nest supports hot water too so I was wondering if it was possible to use zone 4's nest thermostat for the Zone And the hot water? see attached for the wiring diagram of the uh4
  13. L

    Nest with ESi

    Hi, I wired up my Nest (3rd gen) fine in my old house a few years ago, but have just moved into a new build and the heating system is WAY more complicated than the last one! We have a boiler in the garage, hot water cylinder in a cupboard upstairs, programmer in the utility room and two zones...
  14. A

    Has anyone successfully installed Nest hotwater function to 30cdi classic boiler?

    Hi all A new member here! I have bought a 3rd generation nest that I want to integrate with my Worcester greenstar 30dci classic boiler. The central heating control is straight forward enough but I can't find much advice on the hot water function wiring on my particular configuration. The...
  15. Ronsil

    Nest wiring to Glowworm 24C in place of old thermostat

    Hi all, I have just moved into house which has the original 1980's thermostat on the wall. It is very worn and old, we are decorating and would like to replace this, hopefully with a Nest unit. The boiler we have is an old Glowworm Betacom 24c, installed in the loft. It is in very good, like...
  16. Gwreay

    Horstmann H37XL Nest Integration

    Good morning, I've had a look at a few threads featuring a horstmann H37XL however the wiring on the posts is slightly different in that our box has 2 lives, earths and neutrals. Our central heating is a 2 zone controlled by Drayton ZA5 aculators, oil fired and currently using the horstmann...
  17. Rich2020

    Nest - Central Heating Problem

    I have a Nest gen 3 Gas C/H system in a standard size semi. Up until a couple of days ago, the hot water and central heating worked fine. The schedule and app on phone triggered as should. Nothing has changed in the house whatsoever. The thermostat and the Heat-Link(receiver) are paired so I...
  18. C

    Boiler wiring for thermostat

    Hi was having a look at the wiring for my boiler (baxi duo tec a 24) to see if a nest thermostat would be suitable. My currant thermostat has a mind of it own. The wiring doesn't look right to me, just popping it all in a terminal strip together. Normally my dad would have a look (he was a...
  19. C

    Is my Baxi boiler openthrem compatible?

    I know this is probably a dump question but just want to check. I'm thinking of getting a nest 3rd gen thermostat fitted to my Baxi duo tec 23 HE A (about 6 years old). Will it work on openthrem or just on/off ? Thanks
  20. Branflake98

    Nest Thermostat E Installation

    Hi, I plan on installing a Nest Thermostat E with Heat Link to my property however can’t seem to match up the wiring on the apps instructions. The property was built last year and has air source heating installed, I have, in the cupboard some sort of tank with a Daikin control panel. I have...
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