He is most definitaly not chained, our backyard is fenced, He has a kennel and a large shaded area. There is no place in the house that is not used up.He does come inside but only when he can be supervised, although he is moulding at the moment.
(he also pulled all the branches of the big trees outside in the garden!!)

Thank you guys very much for you replies, now i am reassured that he will do fine.