If you are to get the best from your horse, it is vital that you provide him with a happy, comfortable and safe home environment. This applies whether he is kept in a horse barn or in a field. As a general rule, a particularly fine-coated horse, or one that is in hard work, needs to be stabled during cold periods. Hardier horses can live outside all year, provided that they are supplied with adequate shelter. Many owners favor the combined system, where a horse lives out during the winter days, but comes into the stable on the cold nights.