As long as the kennel is in a suitable place so that if the weather turns bad he can be out of the elements be it rain or hot sun , also you need to ensure your garden is dog proof a bored dog will dig up plants and dig to escape if the mood takes him , also check to see if the plants in your garden are not poisonouse to animals as some are and can make them ill. My other thought on this is that if your dog belives he is in charge when you leave he is fretting over where his subordinates have gone . look at what other behaviours he displays , does he sit on your sofa or bed , does he bark at the door , do you make sure you eat before him , lots of little things you may not even think about could be giving him the signal that he is above you and therefore this means when you leave no matter for how long it will make him fret over your return , A good book to get is Jan Fennel the dog listener it arms you with the reasons why dogs act the way they do and gives you methods to stop your dog beliving he is in charge , its all about leadership with dogs and if you have allowed him to belive this is the case you will always have issues when you leave him .

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