Saw a video on installation and the recommendation was to leave the heater Off, as although it is only comes on when needed, the option used juice on standby.
I set a calendar reminder to turn it off 1st of April and turn it on 1st of November - the heating does help in heavy rain as well.
Starlink is running a program at the moment of £79 per month and £0 hardware fee, its their 'UK Rural Pricing' offer.