How did you ignite the sawdust? Did you use some outside source, or just throw a lighter to it till it light then blew it out and let it go? I am going to try this ASAP. I was going to go to the trouble to build a venturi cold smoker from a cocktail shaker, but considering how involved all those parts are to find I may just end up going with this if it keeps the temps super low.
Weber Spirit E-310, Weber Performer, Weber Smokey Joe, Mini-WSM, ECB Electric.