ThermoSphere BT21 Bluetooth Programmable Thermostat

The BT21 is a bit different to other thermostats. It‘s the fastest and easiest thermostat to program and once you‘ve set it up you shouldn‘t need to fiddle with it too much! If you want a simple manual dial thermostat then you can use the dial to set the temperature that you want ...The BT21 is a bit different to other thermostats. It‘s the fastest and easiest thermostat to program and once you‘ve set it up you shouldn‘t need to fiddle with it too much! If you want a simple manual dial thermostat then you can use the dial to set the temperature that you want your heating to get to and the thermostat will maintain that temperature until you change it.

It is best to use Comfort mode for this application. The BT21 is the fastest and easiest thermostat to set up. So give it a go!