Amazon have some Zwave thermostatic valves going cheap, just over £8. I’m using them at the moment.
They do work but can take up to 30mins to activate.
I’ve tried a few suggestions from Charles on this forum but as yet I can’t resolve it. However, for my use I can live with that.
Anyhow if anyone is looking for some and wants to get these considering they are cheaper than standard thermostatic valves and the price hike of energy in the UK, I hope you find it useful.
PS. I’m told they are the same as the Danfoss ones.