I've just picked up one of these in sad condition, and have been doing a little research. You can most certainly cold smoke in them, one option is to drop 1 heat bead in the chip tray and not use the gas, another option is to get something like this a maze n smoker. To the OP, I've used a Weber Kettle for low and slow for a while with no dramas, using the snake method as mentioned above. Masters/Costco etc sometimes have good deals on the Webers, you can normally get one for under $300 if you want to buy new, alternatively check Gumtree etc you can pick up an old one for under $50. They are very well built (hence the 10 year warranty) and even an older one will give you years of pleasure.