Stoves and furnaces – Liquid heater
Patent
1978-03-06
1981-06-02
Scott, Samuel
Stoves and furnaces
Liquid heater
126400, 126132, 126143, 165 46, 16510417, F24B 700
Patent
active
042705126
ABSTRACT:
A heat storing fireplace including a fire-box surrounded 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 containing 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 circuitous 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 bottom 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 created through the fire-box by an exhaust fan mounted in the exhaust outlet. Although the heat storage medium is primarily 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 thermostatically controlled, is positioned in an opening in the baffle in order to selectively 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.
REFERENCES:
patent: 2243503 (1941-05-01), Frenette
patent: 3073575 (1963-01-01), Schulenberg
patent: 3773031 (1973-11-01), Laing et al.
patent: 3960205 (1976-06-01), Laing
patent: 3960207 (1976-06-01), Boer
patent: 4037583 (1977-07-01), Bakun et al.
patent: 4049194 (1977-09-01), Tice et al.
patent: 4089142 (1978-05-01), Kachadorian
patent: 4142576 (1979-03-01), Perry et al.
Barrett Lee E.
Scott Samuel
LandOfFree
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