Does anyone know if the Drayton Digistat employ proportional control (I
think that's what it is referred to as). e.g. if I have the temp set
point at 22, below that it remains on and above that it remains off but
when the room is up to 22 the stat cycles the boiler on/off, the length
of time between cycles being dependent on the rate of temperature
rise/fall?

Thanks

Marc Jennings