A double walled fireplace insert is shown with an inner firebox and an outer shell to provide convection air channels between the parallel walls of the inner and outer units. A front panel is integral with the outer shell, and it covers the front of the insert. This front panel has room air intake vents that open into the said air channels, and warmed air outlet vents that open into the room to be heated by this fireplace. There is a circulating fan positioned within the convection air channels for governing the air movement through the said channels. Each of the rear walls of the insert has a pivoted heavy metal door to accommodate the rear loading of the interior firebox when there is a vertical masonry chimney built on the outside of the residence over the fireplace insert installed through the outer wall with a door opening in the lower portion thereof for gaining access to the two rear doors of the fireplace insert so that firewood may be loaded from the outside into the firebox through the open rear doors, and ashes and cinders may be collected and removed through these two rear door openings from the outside after the fire has subsided. A lock mechanism is provided for the outer rear door to prevent unauthorized entry by unknown persons.
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