Replacing central heating control

[jedd59]

My Honeywell CM907 controller has given up and I’d ideally like to replace with a smart controller.
It is controlling a Bosch combo boiler and I believe it is just two wires to the controller.
Are there any smart controllers that would have the same wiring that I could easily swop it over to?
Thanks

 

[CountryFan]

Depends what you mean by smart, but what you want for that if you don’t want to faff with the wiring at the boiler end is a 2 wire, battery operated thermostat. Such as, Google Nest E, Drayton 2290b et al.

 

[daverave7]

Sorry to hijack, but I'd like to do something similar. I have a Honeywell CM907 on it's last legs and I would like to replace it with a smart controller. By smart, I mean a controller that will link to my wifi so that I can use Alexa to change the turn the heating on/ change the temperature etc. Is there a simple replacement which I can easily use the same wiring?

 

[denso13]

Anything is possible, but you need your own thread.

 

[ericmark]

I use Google Nest speakers, which are similar to Alexa. I use a mixture of heating controls, it started with Energenie which at the time it said it worked with Nest, which was the next step, it did not work with Nest in any meaningful way, I wanted to have more TRV heads which were programmable, so added to the Energenie with eQ-3 Bluetooth, which at the time were cheap, £15 each in 2019, but I had a problem with living room too cool, the hall with the hard-wired Nest Gen 3 cooled slower than the living room, so I added Wiser in parallel with Nest, but before that the carpet fitter smashed one of the Energenie TRV heads, which I replaced with Kasa, as eQ-3 had shot up in price since Brexit, and thought better if I had internet control to just Bluetooth, but the base wall thermostat, at the time, was hard-wired, and I did not have that option.

The Wiser has worked well, a wall thermostat and a TRV head, the latter was out of range of the hub, so also needed a socket adaptor to boost the signal.

The Wiser it seems allows up to 9 thermostats, be they be wall, or TRV type, and the Google Nest Mini's allow a single command to change Energenie, Kasa and Wiser together.

But my central heating is slow to heat the home, so geo-fencing was a flop.

 

[Koolpc]

Anything is possible, but you need your own thread.

denso13!!!!

You are still alive!!!! You been awfully quite my old friend...

 

[Mister Banks]

I use Google Nest speakers, which are similar to Alexa. I use a mixture of heating controls, it started with Energenie which at the time it said it worked with Nest, which was the next step, it did not work with Nest in any meaningful way, I wanted to have more TRV heads which were programmable, so added to the Energenie with eQ-3 Bluetooth, which at the time were cheap, £15 each in 2019, but I had a problem with living room too cool, the hall with the hard-wired Nest Gen 3 cooled slower than the living room, so I added Wiser in parallel with Nest, but before that the carpet fitter smashed one of the Energenie TRV heads, which I replaced with Kasa, as eQ-3 had shot up in price since Brexit, and thought better if I had internet control to just Bluetooth, but the base wall thermostat, at the time, was hard-wired, and I did not have that option.

The Wiser has worked well, a wall thermostat and a TRV head, the latter was out of range of the hub, so also needed a socket adaptor to boost the signal.

The Wiser it seems allows up to 9 thermostats, be they be wall, or TRV type, and the Google Nest Mini's allow a single command to change Energenie, Kasa and Wiser together.

But my central heating is slow to heat the home, so geo-fencing was a flop.

Wiser allows more than 9 thermostats, you can have up to 16 heating zones/rooms with maximum of 5 devices in a zone but a maximum of 64 devices in total.