The Vertical/Bullet smoker was one off the first to be commercially mass produced, it uses a water pan to help keep the temperature stable in the cooking zone and is amazing forgiving when it comes to temperature control, so makes the idea starting point for having a go at smoking. The Weber Smokey Mountain was the first and is still leading the way in this category, the 37cm is great for Fish, Pastrami and smaller items up to the massive 57cm which will manage large Briskets and several racks of Ribs