I'd read, and the instructions said also, to 'season' the bbq, so this is what I did.
Got it set up and filled the grate in a pyramid style with Sainsbury's brickettes plus 3 fire lighters with all vents open fully, started at 8:25 - outside temp 74°f.
It caught really well, so I spread the lit coals and put the two top pieces on and added 1.5 ltrs of water to the water dish.
This was at 9:15 and had reached 215°f - outside temp 65°f
at this point I half closed the bottom vents, but left the top one fully open to let the smoke and gasses out. I'd read that it's best to make these changes as the temp rose as opposed to falling. - my goal temp was 225°f
At 9:20 the temp had got to 225°f, so about 1hr from start. Checked it at 10 min (approx) intervals and it remained steady at 225°f until,
At 10:15 240°f At 10:25 250°f At 10:55 260°f At 10:15 240°f At 11:15 270°f At 11:25 270°f
It rose steadily to 340° at 1:30 It then started to go down, I guess It was out of fuel.
The temp rise (I am guessing at this) was due to the water running dry?
The lid remained on throughout.
The last temp recorded was at 3:30 and was 300°f I would have recorded more but Dad wanted beer can chicken on Sunday and had bought a 4 pack of Special Brew, well I thought I'd try one and considering I don't useually drink at all, but after the first can the rest tasted OK, I fell asleep in the shed and awoke at 5:30 and it was still going strong. (didn't take the temp.)
Next I have to cook.