Abstract: A fireplace closure containing means for supplying an additional amount of air to assist combustion of the logs, coal and the like in the fireplace grate at the time a fire is first started. The invention includes means for cutting off the additional amount of air after the fire is burning satisfactorily. The invention is well adapted for combination with a heat exchanger having forced air circulation and in such case the forced air is first delivered under the fireplace grate to assist combustion during the start of the fire. When the fire has caught satisfactorily, the forced air is then directed through the heat exchanger and is no longer delivered to the grate area. Included in this application are means to adapt and secure a fireplace closure of standard dimensions to fireplace openings of variable dimensions.

Abstract: A fireplace enclosure with glass doors to prevent heat loss from the room in which the fireplace is located, the enclosure having heat exchanging means connected to its frame structure so that the enclosure and heat exchanging means becomes a free-standing unit that may be installed in position with respect to a fireplace opening in a manner such as that heretofore used in installing the enclosure alone.