Posted: 18/03/2014 at 16:57
Zoomer, Black Darlek's are great - I've got one in the church garden and it heats up nicely. My home one though is aluminium. It was the only square one I could get that fits a corner where the landscaper left a flag out for me to put a compost bin. It had to have straight sides so as to fit in the corner. As you know many of them are a graded width (goodness knows why). Anyway, it doesn't get even warm on the hottest days so far as I can see.