my piggies currently live indoors but iv moved to a new house and the only way i can keep them is if i move them outside, so I'm buying them an outside hutch, do i need to buy anything else for the hutch? obviously i have bedding, food etc but i mean like insulation and heat, I'm so scared for them , iv had them for 9 months since they were 12 weeks old and theyv only been outside a few times to have a chew on the grass, then back inside where they are safe and warm, I'm really worrying, are they going to be warm enough outside? i hope someone can give me ideas on what to do to their hutch so its nice and warm for them xx