Professionally installed by a british gas engineer no matter who supplies your energy you can use your smartphone tablet or laptop to control your heating and hot water if you have a hot water tank whether youre at home or elsewherea voucher code is included in the box to book your installation with a british gas engineer who will bring the hub and receiver installation will take around 90 minutes heating and hot water schedules set up to 6 daily time slots heating and hot water boo