So, I've just moved into a new flat (rented) and its all electrical heating etc. In the utility room there are switches for fan (I think something to do with the bathroom because the bathroom light won't turn on without the switch being on), Boiler and Boiler booster. I don't want to get massive bills so how much do the switches need to be left on (especially the boiler ones)? I only need heating for a shower or 2 a day and the washing up.
Would be so grateful for any help. Thank you :)