put her bed under the fan... in my dog's room, fan on 24/7 coz air-cond too expensive
but so far she okay with it.
Try to send your dog for grooming to trim the hair... the long hair will make it extra hot for him.
As for the biting, if u catch him bite the bed or towel, shout at him and beat his butt with a rolled newspaper (dun so thick la... pain). Last time my puppy oso bite the pillow n bed, after few times i scare her, now she never bite edi