Do AC powered wireless thermostats exist

[Bumbeef]

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.

 

[UNG]

Wouldn't be a wireless stat if you wire it to the AC supply

 

[Bumbeef]

Wouldn't be a wireless stat if you wire it to the AC supply

Hi,

I was asking more so if the Stat could be AC supplied and the control to the boiler/actuators remain wireless.

Regards,

 

[bill01803]

nest will do that

 

[telectrix]

give Alan Sugar or Dyson a half hour.they'll come up witha design that fails 2 weeks after the warranty is up.

 

[Avo Mk8]

I can't see any on the market, which is a little surprising.
If you used a wifi cylinder stat that took AA or triple A batteries, how about one of these horrible things: View: https://www.amazon.co.uk/UK-Christmas-World-Battery-Eliminator/dp/B01M4RUNZR/ref=sr_1_3?dchild=1&keywords=3v+Two+aa+battery+mains+adapter&qid=1601918775&s=electronics&sr=1-3

Would it last longer than the batteries?

 

[James]

I can't see any on the market, which is a little surprising.
If you used a wifi cylinder stat that took AA or triple A batteries, how about one of these horrible things: View: https://www.amazon.co.uk/UK-Christmas-World-Battery-Eliminator/dp/B01M4RUNZR/ref=sr_1_3?dchild=1&keywords=3v+Two+aa+battery+mains+adapter&qid=1601918775&s=electronics&sr=1-3

Would it last longer than the batteries?

I wouldn't trust that to work on power up, let alone longer than some good batteries!!

 

[Avo Mk8]

nest will do that

Maybe I misunderstood the thread, I thought the question was about finding a mains powered Wifi cylinder stat to send stored water temperature to a system controller, or to switch the boiler. I don't think Nest has a way of measuring cylinder temperature, it can use Opentherm comms, but that doesn't give exact cylinder temperature surely?
Please tell me if I'm wrong.

 

[EricMark]

I know Nest Gen 3 allows you to power up remote until using USB, it is basically a battery eliminator, and in real terms you can fit a battery eliminator to any thermostat. But if I look at my own system, the Nest Gen 3 is hard wired with a 12 volt DC supply to thermostat, but still have 18 AA batteries to work the system, 2 in each TRV head, so what is the point doing the wall thermostat with mains supply when you still have so many batteries to run the TRV heads.