"[W]hen the construction of the Chimney is very bad... or... very unfavourable to the ascent of the smoke, and especially when both these disadvantages exist... it may... be necessary to diminish the opening of the Fire-place, and particularly to lower It, and also to lower the throat... more than might be wished: but... this can produce no inconveniences to be compared with that greatest of all plagues, a smoking Chimney."