How to build a wood fired hot tub

Step 11 Create the ash grill and ventilation holes

Next task is to create holes in the base to allow air to come through and ash to fall out of. You can go about this any way you like. The simplest thing would be to cut a cross into the base inside the steel ring and cut some slots in the sides where the upward curve starts. (This is what I do for my gas bottle braziers). I went a bit overboard with this one and made it a bit more decorative and added a little bit more volume to boot.

What I did was cut a disc out of the centre then a whole bunch of little ray like cuts around the edge. I then bent these outwards by smacking the tabs with a hammer and on welded the disc that I cut out of the lid earlier. This disc was attached so that the concave side was facing out - I figured that that way the ash would fall out better and not pool in the dish.