The UK's favourite wireless thermostat, Hive is a fusion of form and function. It's the clever way to control your heating and hot water, at home or from your phone. Control Change your heating and hot water (if you have a hot water tank) settings from your phone, wherever you are. Save You’ll never need to heat an empty home again, so you could save up to £150 a year on your heating bills. Install Only a Hive thermostat is installed by a trusted British Gas engineer, no matter who supplies your energy.