Back to results
US 4,432,339 AGranted
Solid fuel burning heating system
OwnerCarlton A. Hebertinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerCarlton A. Hebertinventor
Estimating the term…
A wood burning heating system comprises a large hot water storage tank and a furnace or boiler with a water jacket and a vaulted ceiling over a firebox with a refractory bottom and a refractory lining partially up the side walls of the firebox. The volume of the tank is about ten to twenty times larger than the volume of the water jacket, whereby the large hot water volume acts as a heat storage and as a buffer or heat output equalizer counteracting any intermittent heat input inherent in a solid fuel system especially a wood burning system. The firebox is elongated and the door is so arranged that wood pieces of random and substantial size may be charged into the firebox so that the wood is burning while it is in a horizontal position. The large hot water storage tank may receive additional heat input, for example from an electrical heater operated by a wind driven generator. If desired, the furnace may be installed inside the large hot water storage tank. The furnace or boiler with the tanks and interconnected pipes form a connected container system having a common water level and vented to the atmosphere above said common water level whereby the system works at atmospheric pressure and the boiler cannot develop any steam pressure.
A solid fuel burning heating system, comprising furnace means including a firebox, water jacket means having a given water volume encasing said firebox and including an inner jacket wall forming a heat exchange surface for separating water in said water jacket means from the interior of said firebox means, separate hot water storage tank means having a volume which is substantially larger than said given water volume in said water jacket means, first pipe means (9) connecting said water jacket means (4) to said hot water storage tank means (3) at a first relatively low elevational level, second pipe means (10) connecting said water jacket means to said hot water storage tank means at a second elevational level sufficiently higher than said first low elevational level yet below the water level in said hot water storage tank means for assuring a gravity water circulation flow between said water jacket means and said hot water storage tank means, said water jacket means, said hot water storage tank means and said first and second pipe means forming an interconnected container system having a common water level (11), door means including a door opening operatively connected to said firebox means for charging fuel into said firebox means, flue discharge means operatively connecting said firebox means to a chimney, and vent means operatively connecting the entire interconnected container system at all times during its operation to the atmosphere at a third elevational level located above said common water level (11) in said interconnected container system to assure said gravity water circulation flow.
A solid fuel burning heating system, comprising furnace means including a firebox, water jacket means having a given water volume encasing said firebox and including an inner jacket wall forming a heat exchange surface for separating water in said water jacket means from the interior of said firebox means, first venting means in said water jacket means (4, 5, 6) for directly venting said water jacket means to the atmosphere at all times during its operation, separate hot water storage tank means having a volume substantially larger than said given volume in said water jacket means, second venting means above the water level in said hot water storage tank means (3) for also directly venting said hot water storage tank means to the atmosphere to maintain said hot water storage tank means at atmospheric pressure at all times, first pipe means connecting said water jacket means to said hot water storage tank means at a first relatively low elevational level, second pipe means connecting said water jacket means to said hot water storage tank means at a second elevational level sufficiently higher than said first low elevational level yet below the water level in said hot water storage tank means for assuring a gravity water flow between said water jacket means and said hot water storage tank means, said first and second pipe means forming with said water jacket means and with said hot water storage tank means an interconnected container system having a common water level, said interconnected container system being vented to the atmosphere by said first and second venting means during its operation, door means including a door opening operatively connected to said firebox means for charging fuel into said firebox means, and flue discharge means operatively connecting said firebox means to a chimney, and wherein said separate hot water storage tank means comprise a plurality of tanks (3) and means operatively interconnecting said plurality of tanks (3) to form said larger tank volume, said substantially larger volume of said tank means thereby providing a heat buffer volume.
Dependencies are inferred from the claim text.