Abstract: Improvements in fireplace heaters or devices for efficiently extracting heat from a conventional fireplace; a fireplace enclosure with novel heat exchange and absorption means; a prefabricated installation for use in a conventional fireplace to obtain the maximum utilization of the heat generated by wood, coal or other combustion in a conventional fireplace; a fireplace screen incorporating a forced air draft system associated with a heat absorbing plenum unit and exchanger associated therewith; a forced air fireplace heating system with complete draft control.