F - Mech Eng,Light,Heat,Weapons – 24 – B
Patent
F - Mech Eng,Light,Heat,Weapons
24
B
126/96
F24B 1/18 (2006.01) F24B 1/183 (2006.01) F24B 1/188 (2006.01) F24B 7/04 (2006.01) F24H 7/04 (2006.01) F28D 20/00 (2006.01)
Patent
CA 1120809
TITLE HEAT STORAGE DEVICE ABSTRACT OF THE DISCLOSURE A heat storing fireplace including a fire-box sur- rounded by a heat storage medium which is either an enclosure containing a material having a high specific heat such as sand or gravel or a large number of heat conducting bags con- taining a high specific heat material. Exhaust gases are conveyed from the fire-box to an exhaust outlet by several conduits extending through the heat storage medium in a cir- cuitous path in order to transfer heat from the exhaust gases to the heat storage medium. Heat is further distributed through the storage material by a heat conducting lattice fastened to the conduits and extending through the storage medium in a circuitous path. Combustion air enters the bot- tom of the fire box through a combustion air inlet jacket surrounding the exhaust outlet in order to simultaneously pre-warm the combustion air while thermally insulating the exhaust outlet from its support structure. A draft is crea- ted through the fire-box by an exhaust fan mounted in the exhaust outlet. Although the heat storage medium is primar- ily heated by burning fuel in the fire-box, it may also be heated by either an electric grill or solar heat exchanger embedded in the heat storage medium. The upper portion of the storage medium is covered by a ventilating plenum which allows heat to escape from the enclosure. The plenum has a pair of ventilated sidewalls separated from each other by a baffle. A fan, which may be thermostatical1y controlled, is positioned in an opening in the baffle in order to selective- ly produce air flow through the plenum. Heat in the storage medium may also be utilized by placing a hot water heating heat exchanger in the storage medium.
322719
Frayne & Company Robert
Van Der Maas Robert E.
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