F - Mech Eng,Light,Heat,Weapons – 24 – B
Patent
F - Mech Eng,Light,Heat,Weapons
24
B
126/59
F24B 5/02 (2006.01) F23N 3/04 (2006.01) F24B 1/24 (2006.01) F24B 7/02 (2006.01) F24H 3/06 (2006.01) F24H 7/04 (2006.01)
Patent
CA 1115157
Luftkonditionering AB A method of burning solid fuel in a closed firebox and a stove for carrying out the method Abstract In a method of burning solid fuel in a closed firebox for heating circulating air the firebox is provided with an air- supply passage and is separated from the surroundings. The rate of combustion is controlled by means of at least one damper arranged in the air-supply passage. The temperature of the heated . circulating air is limited to a prescribed maximum value. One or more control means, such as a thermostat, time-relay or the like controls the movement of the damper between either a substantially fully open position and a substantially fully closed position, in which the supply of air to the firebox is substantially cut off. In the closed position of the damper the combustion will practically cease but the fuel shall maintain a sufficiently high temperature for the combustion process to recommence when the damper is reopened. At the same time a desired given temperature is maintained in a space heated by the circulating air or an object, such as an oven, a hot-plate, a hot-water producing device or the like, heated by the hot flue gases. During those periods of time when the damper is closed the temperature of the fuel is maintained by limiting the amount of heat given from the firebox. Thus, the circulation - 2 - of air around said firebox can be reduced. A thermo-electric generator may co-act with one or more electrical thermostats in a manner such that when the firebox is cold the thermo-electric generator does not produce energy and then the damper will be held fully open. However, when the temperature of the firebox, and then the output from the generator, reaches a specific desired value the damper will be closed via setting devices, provided that no thermostat will call for heat. The invention also concerns a stove for burning solid fuel by the above method. The stove has an air-supply passage (13) adapted for so-called balanced draft during heat exchange with the flue-gas duct extending from the firebox. The circulation air is drawn in by means of a fan arranged in the neighbourhood of the lower part of the stove.
304995
Kirby Eades Gale Baker
Luftkonditionering Ab
LandOfFree
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