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7628337 |
Secondary heating system
A heating system operates in supplemental mode to carry water from a hot water supply of the water heater to a heat exchanger within an air passage in the furnace. A water return passage returns...
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7575001 |
Solar and heat pump powered electric forced hot air hydronic furnace
A furnace and method using a heat pump for providing domestic hot water and forced hot or cooled air utilizing heat pump achieved efficiency levels in an on-demand and unlimited domestic hot water,...
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7398778 |
Solar and heat pump powered electric forced hot air hydronic furnace
A furnace in combination with a heat pump and solar panels for providing domestic hot water and forced hot or cooled air utilizing heat pump achieved efficiency levels in an on-demand and unlimited...
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7007742 |
Method and system for pre-heating water
A system and method for pre-heating water prior to entering a hot water heater is disclosed. The system includes: a cold water supply line; an ambient air heat exchange device positioned within an...
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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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6763786 |
Equipment for water heater
The invention relates to an equipment to be used in a gas-fired water heater which equipment contains a combustion chamber ( 2 ) and a heat exchanger ( 1 ). Accordingly the combustion chamber ( 2 )...
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6293275 |
High-temperature gas heater
A compact heat source is provided which includes a bell-shaped or conical recuperator that surrounds a combustion chamber. The recuperator consists of parts that are axially tensioned against one...
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6270542 |
Home and industrial heating furnace that produces fuel gas
A heating furnace for home and industrial use, having the ability to catalyze fuel oil to produce fuel gas for external applications. The heat produced can be radiated, or can be circulated by a...
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6209624 |
Gas-to-gas heat exchangers for use in sulphuric acid plants
A heat exchanger for use in a sulphuric acid manufacturing plant to effect heat transfer between desired gas streams selected from air, sulphur dioxide and sulphur trioxide. The exchanger provides...
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6145500 |
Heating device
The heating device has a housing and a liquid containing compartment defined inside the housing. A heating chamber is disposed inside the housing and the compartment. A fire chamber is disposed...
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6125840 |
Heating appliance for apartments
The invention relates to a heating appliance comprising an outer case made entirely of chrome, with various brick systems arranged inside the case. Within the brick systems is arranged a required...
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6123064 |
Evolving heating concept
A heating system has a modular section which can be converted to use as a store or boiler and to burn either solid or liquid and gaseous fuels. The system can be further expanded by addition of...
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6109339 |
Heating system
A heating system uses a dynamic thermal stabilizer for receiving, mixing, holding and outputting a circulating heat exchange liquid in a fashion similar to the use of a flywheel in the mechanical...
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6041771 |
Apparatus and method of automatically regulating intake of air into heating unit
This invention relates to a novel apparatus and method for automatically and dynamically regulating the intake of air into the combustion chamber of a heating unit such as a wood burning stove,...
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6029648 |
Outside wood-burning furnace
A natural draft furnace has a firebox inside a water box with fire tubes containing water running through the firebox, flues from the firebox running through the water box, a front/fire door of...
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5865165 |
Gas fired fireplace boiler
A low profile, high efficiency, fireplace boiler wherein a burner tray supports a number of gas fired burners and artificial logs within a hearth area of the firebox and about which logs the gas...
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5796915 |
Hot water heater with refuse incinerator
A hot water heater burns inflammable waste articles to heat water. A primary combustion chamber is defined within a water chamber for burning inflammable waste articles. A heating element is...
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5721804 |
Y-shaped portable electric space heater with value to reduce pressure within the boiler
A space heater employs a generally Y-shaped housing. A boiler within the housing contains a working fluid at subatmospheric pressure when at ambient temperature. This reduces the boiling point of...
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5687908 |
Non-condensing dual temperature combination space heating and hot water system
A single system for providing heated water at two different temperature levels for space heating purposes and for domestic water heating purposes is provided. The system can be constructed using...
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5579756 |
Combination heater
Heating apparatus for producing both central heat and tap water, specifically adapted for trailers and similar mobile houses with small spaces is provided. The heat source is a burner combusting...
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5544645 |
Combination water heating and space heating apparatus
A combination water heating and space heating apparatus includes a water heating unit and a space heating unit releasably coupled with the water heating unit. The water heating unit has a water...
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5482027 |
Partitioned bisector regenerative air heater
A furnace apparatus which includes a plurality of water walls. Each includes a plurality of tubes and the water walls collectively enclose a combustion chamber. The apparatus includes a plurality...
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5377661 |
Wood burning stove for heating water
A stove for the generation of heat from the burning of wood for heating water and for heating the room in which it is located comprising a drum having cylindrical side walls about a horizontal...
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5361751 |
Combination hot air furnace and hot water heater
A combination hot air furnace and hot water heater (10) having a furnace (20), a gas flow control valve (40) and a hot water heater (60) constructed as an integral assembly. Furnace (20) has...
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5318101 |
Thermal accumulation type heating and cooling device using heat transfer medium
A heating and cooling device comprising a box type heat exchange tank containing a heat transfer medium having an thermal accumulation effect therein and a heat exchange pipe arranged in said heat...
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5299278 |
Forced air circulation electric convection space heating system utilizing heated air discharge to preheat air to be heated
An electric forced circulation space heating system has a first heat exchanger provided with electric heating elements for heating a heat exchange fluid, such as antifreeze or oil, pumped through a...
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5273209 |
Heat exchange and fuel feed apparatus for vertical furnace
A heating unit and solid fuel feeder comprises a vertical furnace having a combustion chamber for burning solid fuel, a water jacket around the combustion chamber and an exhaust chamber at an upper...
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5097802 |
Condensing furnace with submerged combustion
A high efficiency furnace having a substantially continuous wet heat exchanger wherein such continuous wet operation is provided by raising the dew point of the combustion products by submerged...
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5076494 |
Integrated hot water supply and space heating system
An integrated system for both space and water heating. Heating is accomplished in a condensing heating module having a small hot water storage reservoir to reduce burner cycling during periods of...
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5074464 |
Forced draft direct vent system for a water heater
A combined air and water temperature conditioning system provides for the heating of potable water and for the heating and cooling of indoor room air in a compact arrangement of components. A...
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5046478 |
Recuperative furnace system for space air and domestic hot water
A recuperative furnace system for space air and domestic hot water wherein a combustion product heat exchanger and a space air heat exchanger are each operated in counterflow manner. The dew point...
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5037510 |
Integrated water distiller and/or water heater and/or furnace
An integrated system provides combined space heating, water heating and water distillation. The system is adapted for supplying combined services to residential and commercial buildings. The system...
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5036829 |
Heating apparatus
A heating which comprises a housing containing a water conduit, a fire compartment for heating the water in the water conduit, a heating chamber containing a plurality of heat emitting fin coil...
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4971025 |
Gas-powered apparatus for producing warm water and for heating an enclosed space
This gas-powered apparatus comprises a substantially cylindrical combustion chamber having an inlet for the combustion air connected to the outside and an upper outlet connected to a burned gas...
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4936505 |
Gas-fired coaxial water/air vehicle heater
An improved gas-fired heater for supplying heat to a space, such as a vehicle cab, and simultaneously, heat to the engine block for running the vehicle. A heat exchanger simultaneously heats a...
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4906178 |
Self-powered gas appliance
Embodiments of gas-fired appliances which generate sufficient electricity to be self-powered include water heaters, space heaters, air conditioning units, and electric power and steam cogeneration...
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4887586 |
Heat recovery apparatus
Apparatus utilizing waste heat from a furnace or the like to heat water for any desired purpose or to supplement a conventional heating system. In its illustrative embodiment, the invention...
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4805590 |
Gas space heating unit
The use of an incandescing burner or so-called reactor to preliminarily heat water which subsequently is passed in heat exchange with air that is used for spaced conditioning, and wherein the same...
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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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4751913 |
Apparatus for heating water
An apparatus for heating water, especially a hot-water boiler. The apparatus has a combustion chamber and two or more heat exchangers that are disposed one above the other. The heat exchanger...
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4748968 |
Gas fired device for generating heat for dwelling
A gas-fired device for generating heat for a dwelling, comprising a vessel containing a liquid with an associated burner assembly for heating the liquid, an air-heat exchanger provided on a portion...
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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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4706644 |
Engine Heater
An apparatus for preheating an engine is disclosed. The apparatus comprises a liquid fuel burning heater, a coolant pump for circulating engine coolant through the heater, a fuel pump for...
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4662350 |
Heating apparatus for a water heating for small rooms
A hot water heater for trailers or mobile homes and the like, wherein increased heat capacity is provided due to exposure to combustion gases over large heating surfaces and including the use of...
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4651923 |
Heat extractor
A heat extractor system for a furnace, said furnace including a burner with a chimney that is connected but is normally not in operation. Instead, the furnace is connected to a vent in parallel...
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4641631 |
Apparatus and method for burning a combustible gas, and a heat exchanger for use in this apparatus
An apparatus functioning as a high-efficiency water heater. This apparatus passes a combustible mixture of gas and air from an impeller into the hollow interior of a cylindrical gas burner. The...
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4640458 |
Method of producing hot air and hot water for sanitary purposes and apparatus for carrying out the said method
The present invention relates to a method and an apparatus for producing hot air and hot water for the supply of sanitary fittings, the apparatus comprising on the one hand, a central portion...
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4638943 |
Method of heating any building or room and apparatus for carrying out the said method
The present invention relates to a method and an apparatus for heating a building, room or any like space characterized in that it combines into a unit a hot-water generator constituted by a fan...
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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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4584985 |
Hot water heating installation
The hot water heating installation comprises a hearth or combustion space for solid fuels and a heat exchanger arranged above the hearth. The heat exchanger is structured as a closed water jacket....
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