Hello hoping someone may be able to help. Couple of questions here!
I moved house around 3 years ago and took my old Nest thermostat system with me. I intend to use this for my downstairs heating to replace the old traditional thermostat.
I'm on an oil fired boiler (it is not a combi boiler) but a 2022 Worcester Bosch Oil boiler.
Trouble is I have ended up with multiple heatlinks from my old house and I don't know which one is the most recent that I used as they were muddled up in the move!
It is going to cost me quite a bit of money to have the new system installed in my new house and due to the age of them, I dont want is to pay the installer get it all done and then for the heatlink that I randomly pick to install not to work due to the recent issues with them! (for context, the reason I have multiple heatlinks with my old system is that there were issues with a couple of them over the years and Google sent me a replacements - I should have just thrown the failed units away in electronics recycling, but stupidly didn't and here we are....!)
The thermostat itself has a serial of 09###########
The 3 heatlink serial numbers are:
LD5H9K
FMXBB7
UBGHJ6
Which one of these is the most recent heatlink please? When I know this and Due to the recent heatlink issues, would it be worth me sending the latest one back to google for a replacement to ensure that it won't fail when installed?
The second part to this is that I have also been gifted another nest learning thermostat, which I also intend to use as a thermostat for the upstairs to replace the upstairs thermostat - the house is large ish and having only one thermostat downstairs won't be accurate as to the temperature upstairs! I also have a hot water tank upstairs that again runs from the oil boiler downstairs, so I would also like to utilise the hot water tank controls too if that would work? The heatlink to this thermostat is TJKEDR. The serial number is: 09###########
Again, would it be worth sending this back to get a new heatlink to ensure no issues when installer fits as he will be doing all the work on the same day and I really don't want to run the risk of heatlink issues!
Finally, do you envisage any issues with the above nest systems working together? I've never run two smart thermostats before or used the hot water tank controls, so just want to ensure no compatibility issues!
Thank you for any help you are able to provide in advance,
Kind regards
Abby
