Inherited this smoker from my father-in-law a couple months ago. I know it's a Green Mountain Grill brand, and it looks like an old version of their Daniel Boon. It doesn't have any digital display or anything and I'm trying to find out what exactly the modes do. Smoke, Medium, and High. I mean, it's fairly obvious what they do, but what temp is smoke, medium and high? That's the main thing. There's no ID plate on the back anymore that would have a model number on it to try and get a manual.