I'm relatively new to having an au pair and so far things are going fine. My au pair always stays in - apart from going to pick up the children from school and for 2 days per week she attends a local college for 2.5 hrs. Our heating normally goes off at 8am and comes on again at 2pm. However with the colder weather setting in will I have to make sure the house is constantly heated?? We have a 4 bed house which would be quite costly. My au pair hasn't asked for the heating on so far. What are my responsibilites to her in terms of this?