I bought an RF room thermostat, made by Drayton.

My intention was that it be a dedicated control for an infant's bedroom, to ensure that the room stayed at a safe, comfortable temperature during winter. I am a gas engineer. It was a complete waste of money and time!

Once installed, the stat refused to pair with the sender. After much effort, my son in law managed to do this. But would this thing simply act as a room thermostat? No, of course not! That would be too simple, wouldn't it? There are innumeranle options mentioned in the instructions, but nothing that would make it do what it is supposed to do! So we contacted Drayton's technical support department. In common with most tech support people, they failed to say anything useful, to the extent that it became worse, randomly switching the heating on and off, even for as little as 30 seconds, during which time no difference in temperature could have happened.

My next step is to uninstall it, fit a real, hardwired room stat and never buy from Drayton ever again.

Although they replied to the above, making sympathetic noises, it did nothing to improve my experience and waste of money on their useless product!