Ahgr, tried another BBQ and someone thought it looked like it was cooked on Chernobyl reactor No. 5.
I used instant light lumpwood charcoal, quick to get going and gave really good heat, if I put the lid down the temp was hitting nearly 300 C but didn't last long (long enough to cook plenty of food though)
Today I thought I'd go the normal route with briquettes, got some Zip coconut briquetted I think they were, arranged them one layer at a time, kinda like a small pile, stuck some fire lighter cubes in and lit, took a while, all food cooked, but it took much longer, the heat was lower, if I closed the lid (barrel BBQ), max tempt of 150 degrees. Lasted about 3 hours at that temp.
Not sure what I'm doing wrong, I'd like to be able to place cooked food to the indirect area to keep warm but it doesn't do very well.