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8176882 |
Boiler for combustion of solid fuel
A boiler for combustion of solid fuel, especially biomass, a first combustion stage with a primary air supply, an igniter, a fuel supply, a second combustion stage a burn-up and calcination space,...
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8011329 |
Automatically controlled outdoor pelletized bio-fuel-burning hydronic heater
A heating system has a heating unit with a combustion chamber for burning wood pellets or other pelletized fuel. The heating unit is controlled by a process control module that automatically keeps...
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7762216 |
Wood fired hot water heating system
A hot water heating system is provided for heating water that is utilized to heat a structure such as a tobacco barn. The hot water heating system includes a base and a vessel, movably mounted on...
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7644669 |
Coal fired process heaters
An embodiment of the invention consists of a process heater with a radiant section and an overhead convection section, the radiant section having a vertical cylindrical, contiguous, helical,...
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6880547 |
Wood burning swimming pool heater
A swimming pool heater that heats a private swimming pool and can be used to provide heating for a house, a cottage or a commercial swimming pool. Wood, that is often found around pools, is used as...
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5357906 |
Submersible liquid-to-liquid heat exchanger
A single port, internal liquid heat exchange assembly for heating domestic water from a free-standing, low pressure wood fired boiler. A threaded manifold fastener retains the assembly in...
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5329920 |
Wood burning boiler
An outdoor, self-contained wood fueled furnace. The furnace includes a non-warping, laminated sheet metal door; a rear exiting flue with water discharge means; and a baffled, heat exchanger which...
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5201307 |
Insulated firebox for swimming pool or spa heaters for reduction of smoke or odor
An insulated firebox is disclosed which forms a portion of the combustion chamber of a pool heater and which is adapted for reducing the emission of smoke and odor from the firebox into the...
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5165350 |
Underground wood burning furnace apparatus
A subterranean furnace construction includes a firebox, with the firebox formed with a surrounding outer wall defining a serpentine steam pipe wound therethrough for use in heating of an associated...
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5096413 |
Ignition mechanism for a heater
An ignition mechanism for a heater which includes a metal exothermic container in which are mounted an exothermic part, a firing part and an igniter. The igniter is a type which may be actuated by...
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4926797 |
Wood burning hot water furnace
A forced air liquid heating furnace which includes a liquid heating jacket or chamber surrounding the combustion chamber and having an exhaust gas discharge passage formed in the bottom of the...
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4785747 |
Gasifying burner for a solid fuel heating apparatus
The present invention relates to a gasification burner for heating apparatus (boiler, hot air generator or the like) which uses solid fuel. The gasification burner is placed generally at the center...
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4779795 |
Convector room heater incorporating a hot water boiler
According to the present invention there is provided a boiler comprising a firebox, a control device controlling the flow of air into the firebox, a water jacket surrounding at least part of the...
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4724798 |
Outdoor woodburning furnace
An outdoor wood-fired furnace which heats water for domestic use and provides heat is disclosed. The furnace has a water jacket, sides, top and ends. A main distribution chamber is provided for air...
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4699069 |
Boiler or furnace
A boiler has a cylindrical body separated into two chambers by a transverse inner water chamber. A fuel magazine leads to one of the chambers, while a cyclone with a flue leads from the second...
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4612878 |
Wood-burning heater for circulating water
An improved wood burning furnace having a water preheat chamber connected thereto with a water distribution means in said preheat chamber, said distribution means extending laterally across the...
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4596233 |
Solid fuel combustion equipment
Solid fuel combustion equipment in the form of a grate assembly comprises longitudinally extending support elements on which are mounted laterally orientated grate bars. The support elements are...
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4566393 |
Wood-waste burner system
Wood-waste products, such as wood shavings, wood chips and sawdust, are burned in an apparatus having a waste burner comprising an elongated cylinder in which fuel and air are mixed and ignited...
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4565184 |
Combustible particulate fuel heater
A heater is disclosed for burning combustible particulate fuels. The fuels are delivered to an internal retort at a constant rate. They are burned at an open end of the retort with the aid of a...
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4562777 |
Heat generator
A heat generator comprising a fuel supply chamber (7a), having at its lower end an inwardly tapered section (12), comprising at its lower end a burner plate (14) with mixing strips (33) and a...
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4555993 |
Water gas furnace
A water gas furnace comprising an outer container to provide a housing in which coke is placed into its lower part. A water container is placed within the housing. The coke is ignited and heats the...
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4534319 |
Wood burning stove heat exchanger
A wood burning stove includes a water circulating grate within the stove fire chamber which includes horizontally extending, vertically spaced, first and second tubular manifolds. Fuel supporting...
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4516534 |
Steel construction solid-fuel firing boiler for civil heating applications
A novel steel construction solid-fuel firing boiler for civil heating applications comprises a space portion defined by side, bottom, cover, front and rear walls forming therein an interspace for...
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4497262 |
Wood fired boiler
A wood-fired boiler construction is shown having a firebox (15) mounted on a metal base (12) and concrete slab (11) in an insulated shed (13). The firebox is a generally box-like structure...
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4479605 |
Heating system
A system for generating, storing and releasing heat comprises a tank surrounding a reservoir for holding a heat transfer fluid, heat releasing means in fluid communication with the reservoir for...
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4474117 |
Boiler using a solid granulated fuel
The invention relates to boilers using solid fuels in granular form.It comprises: (a) automatic feeding of the firebox with fuel by a reciprocating piston system forming a fire barrier in the rest...
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4470359 |
Auxiliary furnace in combination with a boiler
A boiler which is designed to be fired by oil and/or gas comprises a water cooled combustion tube closed at one end and located within a water space of the boiler, is connected to a solid fuel...
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4461242 |
Means for heating water by wood burning
The wood burning water heating means of the present invention utilizes a firebox having a grate adjacent the lower end and a flue opening positioned downward from the upper end thereof. The flue...
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4461243 |
Steam or hot water generator operating by solid fuels having high contents in volatile materials
A steam or hot water generator, operating by solid fuels having high contents in volatile materials, provides that the column of fuel bears on an inwardly inclined grate. A fraction of the...
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4444153 |
Grateless furnace for solid fuel
A grateless furnace has a combustion chamber, means to introduce solid fuel into the combustion chamber and to permit said fuel to form a fire bed in the bottom thereof, the combustion chamber...
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4424024 |
Bulk curing with solid fuel
Apparatus for bulk curing tobacco comprising a barn having a heat exchanger therein defining interior flow paths for heated water and exterior heat exchange surfaces disposed within the curing air...
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4422410 |
Domestic combustion appliances
A domestic combustion appliance 1 has a body 2 having a distributor plate 14 for supporting a shallow fluidized bed 32. A primary boiler 34 forms part of a rear bounding wall for the fluidized bed...
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4421064 |
Heating boiler
The invention reads on a heating boiler for solid fuel, comprising a combustion volume with fuel feeding aperture, air entry apertures and chimney flue, and a water volume, the latter bordering on...
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4419940 |
Boiler installation
Sulfur is readily and efficiently removed from solid fuel in a boiler installation which comprises a hearth for burning and thereby gasifying the solid fuel, the hearth including a grid supporting...
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4419942 |
Stove
A stove in which the fuel is combusted within a primary combustion zone and the products of combustion are transported into a tertiary combustion zone surrounded by a container of water. A bundle...
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4418649 |
Boiler structure
A boiler comprising a long tank lying on its side and having a fire box at one end which is adjacent to a recessed bulkhead that is spaced from a partition in the end of the tank. The top of the...
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4416418 |
Fluidized bed residential heating system
A fluidized bed combustion system particularly suitable for use in a residential heating system comprising a fluidized bed combustor housing a combustion chamber wherein crushed fuel is burned to...
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4413571 |
Solid fuel hot water heater
A solid fuel burning hot water heater is described having a primary combustion chamber with a refractory material base portion which forms the locus of combustion. A water jacket defines an upright...
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4413590 |
Boiler for a heating system
A liquid or solid fuel-fired boiler for a central heating system is disclosed comprising a combustion chamber and a heat exchanger arranged therearound and connected in a heating fluid circuit...
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4403574 |
Boiler pancake design
A device constituting an improved boiler design. The heat exchanger, known in the art as a pancake, is composed of an asymmetrical grid of interconnected hollow eliptical conduits through which...
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4394839 |
Combustion apparatus
A combustion apparatus and a process used to obtain hot water without producing any pollution therefrom, including a hermetic casing, a furnace and cyclone device, all of which are disposed in the...
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4359951 |
Low profile portable power plant
A portable power plant for combustion of solid fuels with contiguous generation of steam and power, wherein the plant is constructed with a low-profile, contiguous dual stage combustion chamber and...
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4360152 |
Auxiliary heating system
An auxiliary boiler is provided for substantially reducing fuel consumption of a conventional forced-air heating system. A boiler tank substantially filled with water is connected by hot and cold...
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4303198 |
Wood-burning boiler
A wood boiler surrounded on five sides by a water jacket with a series of water-carrying pipes forming a grate adapted to hold the wood while burning and an exhaust pipe extending through the top...
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4127107 |
Auxiliary heating device for standard hot water type home heating systems
An auxiliary heating device for supplementing the performance of a standard hot water type home heating system with the heat produced by combusting a low cost, readily available fuel is disclosed....
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