F - Mech Eng,Light,Heat,Weapons – 24 – B
Patent
F - Mech Eng,Light,Heat,Weapons
24
B
126/97
F24B 9/04 (2006.01) F24B 1/18 (2006.01) F24B 1/183 (2006.01) F24B 7/06 (2006.01)
Patent
CA 1065221
ABSTRACT A fireplace enclosure and heat-extraction apparatus, the enclosure comprising a fireplace frame having vertical side members and horizontal top and bottom members, with two novel door structures which are hingedly carried by the fireplace frame. Each door structure comprises double panes of tempered glass disposed in spaced, parallel relation, held by a door frame which extends around the peripheral portions of the panes and confines the same. The door frames have special ventilat- ing holes located adjacent the top and bottom members of the fireplace frame, which enable air from the room to be drawn into the space between the panes and then discharged, to not only provide heat to the room but also at the same time hold the temperature of the glass to a lower value. Several arrange- ments of atmospheric, superheated thermal exchangers-radiators are also disclosed, for use in conjunction with the double glass panes, to provide an exceptionally high heating efficiency with surprising simplicity as well as safety, when used with a conventional fireplace construction. The advantage of the above construction over prior enclosure is that the temperature of the glass panes is limited to a safe value, even in the presence of relatively large fires, thereby enabling the pro- duction of superheated steam in the heat-exchanger, all without danger of cracking or breakage of the glass.
279464
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