Dunsley Flued and Super-Flued boilers are
   very efficient having proved themselves
   many years. They are designed to standard
   size and shape. The Super-Flued having two
   extra heating tubes for faster heat recovery,
   an outstanding feature is that the opening
   of the flue is actually placed over the fire to 
   get the full benefit of the heat. The flue
   damper arrangement enables the flue to be
   partly closed in varying positions giving full
   control of boiler outputs. Because these
   boilers are of standard shape and size any
   standard fire can be used, but for best
   performance use the Dunsley Firefly or Loline
   fires.

    Dunsley fires will burn wood and peat in
   addition to coal or smokeless fuels. Ideal
   for the smaller 2 or 3 bedroom dwelling.