Comments on: The Darkest Days of the Year The EPA Blog Mon, 14 Dec 2015 16:24:21 +0000 hourly 1 By: ctchimney Tue, 09 Apr 2013 06:15:53 +0000 The use of chimney reduce your stress by a very hot column involving petrol to create a draught along with sketch oxygen above the very hot coals or maybe wood enabling extended combustion.