I have ha this smoker since Christmas of this year and I have been using it once a week consistently. I noticed last week that It start to drip or leak grease. I believe it is from the build up of smoke. I have talked to my father who also has a similar smoker (different brand) and he never had to clean his smoker. I was wondering If I should clean or wipe it down every time I smoke or cold there be something wrong with the smoker. I have the vents partially open and added wool gaskets along the doors to keep the smoke in. Any help or advice to fix this would be appreciated. Thanks!