1. F

    connect boiler and nest heatlink from the same switched fused spur

    My boiler is currently powered by a switched fused spur. The spur is located 40cm underneath the boiler. I haven't checked but it is probably a 3A fuse. My boiler is an Ideal Logic combi ESP1 35 : I would...
  2. bettz1

    Nest 2nd gen thermostat help

    Hi I've been changing our kitchen socket switches to brushed metal ones and on Sunday I changed the fuse switch for the boiler. Turned off the main fuse board took a picture of the wiring and went and changed the socket. Now we've noticed the nest thermostat has gone off at the wall and the...
  3. A

    Nest E & Baxi 228 OpenTherm issue

    Hi all, I've searched online and can't find anyone with the same issue, so thought I'd post here. At the weekend I installed a Nest Thermostat E to my Baxi 228 using OpenTherm, replacing an on/off thermostat. Initially, I removed the old thermostat's wire from terminal X4 and did not reinstate...
  4. C

    Replace Honeywell Wireless with Nest

    Hello, I've got a quote for a tradesman to do this but I'd like to see how much of a direct swap out it is, as I'm happy to do it if it's as simple as I expect. So I have a Honeywell thermostat and programmer (it's a single wireless unit in the hall) with a control box just next to the boiler...
  5. R

    Nest to tado EK wirering

    Hi all, I want to move from nest to tado but can't find anything to help me swap the heatlink wirering to the tado EK. I also need help with jumper position. Has anyone done this and able to share diagram. Thanks in advance.
  6. S

    Installing Nest Thermostats

    Hi I would like to install 2 nest thermostats to replace the 2 thermostats I currently have in my home. My boiler is an Ideal Logic ES38 and it's controlled by 2 Honeywell CM707 thermostats. One for upstairs and one down. I've watched loads of videos and read tons and seems pretty...
  7. F

    Smart Thermostat recommendations?

    I'm looking to get a new combi boiler fitted soon, likely a Viessmann. The combi boiler will be servicing about 9 radiators (including 2 towel radiators) and 2 showers in a 3 bed flat. I'd like a smart thermostat system for this, but am a bit flummoxed by the options especially the zoning...
  8. C

    Nest v3 - heating not switching off

    Can't find an identical problem, so here goes. Nest v3 installed in the summer, by my local gas engineer. Don't want to bother him again as he took pity on us and charged us an unbelievably low price to sort out many issues left by a previous cowboy. Heating and hot water are on a Y plan...
  9. N

    Smart Heating Control Advice

    Hi All I have had a search through previous posts and google, but everything I find seems to get me more confused. I have just had a new Vaillant boiler fitted, an ecoTEC plus 838 combi. It is just the boiler at present, operated by the controls on the front only. My plumber is offering to...
  10. P

    Nest thermostat with 2 hot water cylinders - how?

    Hello all, been a frequent visitor here for lots of tips over the years, but this is my first question. I would like to upgrade my Drayton digistat 3 (central heating) and separate Drayton LP711 (hot water) controllers to a single Nest system that controls both CH+HW. System is open vented...
  11. G

    Nest Gen 3 to replace an old Horstmann Potterton controller to a Ideal Mexico 2 Boiler

    Hi, We have just moved in to an old property with a Ideal Mexico 2 boiler controlled from a Horstmann Potterton controller. The timer function has just stopped working and I thought I could upgrade the potterton controller to a Nest thermostat with heat link. I think the Ideal Mexico 2 is a...
  12. N

    Google Nest Installation Advice

    Hi All, Looking for some advice regarding the compatibility of a Google Nest to replace existing Drayton timer and stat. I know the Nest is compatible with my S Plan system generally but cannot see how I would wire the new stat into the T1 and T2 ports on the Heatlink (which is a 12v...
  13. O

    Advice on wiring Nest Thermostat E to Alpha Eco Combi Boiler

    Hi, I.m looking to add a Nest Thermostat E to my Alpha Eco Boiler. The boiler has no room stat but just a timer. My understanding is that I should leave the timer in and set it to always on. I should then remove the link connecting 1 and 2 and run instead two wires from 1 to NO/Call for heat...
  14. WildWolf

    Google Nest E installation - boiler not powering on

    I've just installed a Nest E in place of our old thermostat and it doesn't appear to be working correctly. The Nest E and the Heat Link both communicate with each other fine but when the power is switched on at the mains, the boiler doesn't power up. I've attached a photo of the old thermostat...
  15. M

    Adding Drayton Wiser TRVs to a NEST setup

    Hi, Hoping someone can help as I have looked everywhere without success. My setup... I have a fairly new NEST setup that controls hot water and central heating from a Valliant ECOtek plus. I have a megaflow in the loft (probably not relevant). All radiators are on a single circuit. What I'm...
  16. Bambochea27

    Worcester Greenstar 25i ERP combi help needed

    Hello guys, My name is Marian and I got an Worcester greenstar 25i erp combi boiler. I need your help to install a Nest 3rd generation also can you help me to find right washers for connectors between wall support and boiler itself? (CW, HW, Gas...etc) Thank you so much for your help. Marian
  17. D

    Nest E thermostat issues

    Hi guys, New here. I have a nest E thermostat which I've put in replace of a honeywell t6360. I've wired this is before at a previous address with no issues. However this time round no matter what wires I put in what place the heating stays permanently on. The nest thermostat is on the off...
  18. A

    Replace Drayton with Nest - wiring?

    Hi, I'm not sure if my programmer can be replaced with a 3rd gen Nest? Google website says my wiring means no, but I don't believe that's true. Do I need to modify any wires or add anything? I know there's threads discussing similar, but I'm still not sure. I have a Drayton (British Gas UP2)...
  19. J

    Honeywell Zonal Valve to Nest Heat Link

    Hi All, This may have been asked before, but I need some help wiring up my honeywell 2 port valve to my heatlink, after some dodgy electrician was useless. This is the current set up and, the zonal valve stays open constantly, so when the UFH is live, so are the radiators: I can see...
  20. Murrell

    Nest - No power to existing thermostat

    Hi Everyone, I have replaced my existing Myson MEP2C with a Nest 3rd Gen. Everything went well, except there seems to be no power to the existing stat where I was planning on hard wiring the new Nest thermostat. Here is the wiring setup before at the conrol where: 3 = HW on 4 = CH on Here...