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| Number | Title | Issue Date |
| 7806346 | Cascade unit for a heating system with two or more heating boilers A cascade unit for a heating system with two or more heating boilers, in particular condensing boilers, with a hydraulic shunt which is connected on the one hand with the inlet flows and return flows of all heating boilers and on the other hand with at least one hea... | 10/05/2010 |
| 7591434 | Hot water supply system A hot water supply system includes: a casing 1 having an opening in a front face; a front panel 2 covering the front face of the casing; and a console box 7 attached to the casing. The front panel has a window into which the console box is to be... | 09/22/2009 |
| 7021554 | Heating appliance A domestic combined heat and power system comprising a Stirling engine (1) and water heater in the form of a supplementary burner (17). The exhaust gas from the Stirling engine is used to preheat combustible gas entering the Stirling engine and subsequ... | 04/04/2006 |
| 7000847 | Quick recovery water heater A small water heater with a 29 cm outer diameter and a total height of 60 cm produces five liters of hot water per minute, with a difference of 25° C. between the water inlet and outlet, and an 85% thermal efficiency; this water heater has a heat recuperator 1 | 02/21/2006 |
| 6941680 | Cost-efficient clothes dryer A clothes dryer that is operatively attached to a heating system is illustrated. The clothes dryer receives heated fluid when the dryer is turned on. The dryer has a radiator that receives the heated fluid from the circulating fluid flow system. The fluid-filled rad... | 09/13/2005 |
| 6092734 | Manifold for connecting circuits of a central heating system A manifold connects three boiler circuits and a heat exchanger circuit and an indirect cylinder heated exchanger circuit of a central heating system together. The manifold comprises a container which defines a hollow interior region which is divided by a ... | 07/25/2000 |
| 5950575 | Hydronic manifold A manifold for distributing a circulating fluid, such as water, to multiple zones of a hydronic system, such as a hot water heating system. The manifold is of unitary construction and includes a plurality of distribution branches and an air scoop extendin... | 09/14/1999 |
| 5881763 | System for distributing fluid from a single source to multiple locations A manifold system for distributing fluid from a single source to multiple locations is shown and described. The manifold system receives a single source of a fluid, such as water, which then is used for multiple purposes. The manifold system has an outlet... | 03/16/1999 |
| 5829677 | Water heating and cooling system having a dual water mixing and air separator apparatus An improved closed loop variable volume water heating or cooling system having one or more work units for supplying heated or cooling water to a heating or cooling system which includes a dual purpose water mixing and air separator vessel. This vessel inc... | 11/03/1998 |
| 5794845 | Flow control device and hot-water type heating apparatus employing the same A plurality of flow control valves is correspondingly provided to a plurality of heater core portions. Each of the flow control valves is provided with a first restriction portion formed in an inlet for receiving hot water, a second restriction portion in... | 08/18/1998 |
| 5779143 | Electronic boiler control A hydronic heating system including a single self-contained hydronic control unit. The hydronic control unit allows for zoned heating operation in which a series of individual room thermostats and zone valves control the flow of heated water into each of ... | 07/14/1998 |
| 5775581 | Dual heat source heating system A heating system for heating a building with at least a first zone and a second to be heated. The heating system includes a first heating source and a second heating source. The heating system alternates between two modes of operation. In the first mode, ... | 07/07/1998 |
| 5749516 | Vehicle heater with control device An engine-independent vehicle heating appliance has a combustion air fan, a fuel dosing pump and a heat exchanger that surrounds the combustion chamber, as well as a controller that controls the operation of the vehicle heating appliance. In compact desig... | 05/12/1998 |
| 5738277 | Water heating and cooling system having a dual water mixing and air separator apparatus An improved closed loop variable volume water heating or cooling system having one or more work units for supplying heated or cooling water to a heating or cooling system which includes a dual purpose water mixing and air separator vessel. This vessel inc... | 04/14/1998 |
| 5718374 | Heating device The invention relates to a heating installation. The installation comprises a closed liquid circuit which is under pressure during operation, a pressureless liquid reservoir, an actuable pump with an inlet connected to the reservoir and an outlet connecte... | 02/17/1998 |
| 5707007 | Hydronic heating with continuous circulation supplying multi-temperature heating loops A hydronic heating system having a source of hot supply water and a reservoir of cooler return water, a main hot supply water circulation path (loop) from the supply water line to the return water line including a pump maintaining continuous flow of hot s... | 01/13/1998 |
| 5579996 | Radiant floor and wall hydronic heating systems A hydronic heating system that has a boiler supplying hot supply water, a reservoir of cooler return water, a supply water line, a return water line and one or more heating loops through which water flows from the supply line to the return line, the heati... | 12/03/1996 |
| 5390660 | Pre-wired and pre-plumbed module for use with an installed hydronic radiant floor heating system A pre-wired and pre-plumbed module for connection to an installed hydronic radiant floor heating system including a supporting frame having components mounted thereon such as a boiler, pumps, four-way valve, in-line air separator, expansion tank, P/T port... | 02/21/1995 |
| 5381902 | Device for supplying a circuit of a heating or cooling supply system Units for supplying a circuit of a heating or cooling supply system which are required for conveying a medium and for regulating and monitoring are arranged at parallel pipelines for the forward and return flows so as to be combined in an installation-rea... | 01/17/1995 |
| 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 axis, support legs and circular end walls; an array of tubes i... | 01/03/1995 |
| 5341843 | Plumbing and heating pipe system for water supply purposes, made either completely or mainly of plastic material, especially of polypropylene A plumbing and heating pipe system for water supply purposes, made either completely or mainly of plastic material, especially of polypropylene, said system being provided with metallic connecting sleeves as well as reducers for connecting the plastic pip... | 08/30/1994 |
| 5265673 | Compact manifold for a heat exchanger with multiple identical heating tubes A manifold for a heat exchanger including a plurality of substantially identical heating tubes. The manifold has front and rear walls. The rear wall has therein a plurality of inlet ports, each of which is adapted to be connected to the outlet of one of t... | 11/30/1993 |
| 5111875 | Modular heat installation for premises with water as a heat transmitting medium A heat installation for buildings, with water as the heat transmitting medium which comprises a forward pipe and a return pipe (19 and 18 respectively) as well as radiators (11) connected to said pipes. Said installation is designed as a building element ... | 05/12/1992 |
| 5109807 | High output mini hydronic heater An efficient compact modulating or fixed firing rate hydronic heater is provided. A slotted single piece baffle encloses the heat exchange surface which is a wound finned tube, and improves gas flow contact with the heat exchange surface, thereby increasi... | 05/05/1992 |
| 4989781 | High-efficiency heating unit A forced hot-water heating system in which sensible and latent heat remaining in flue gases after contact with a primary heat exchanger is recycled into incoming cold air by a second heat exchanger. The heater, humidified intake air is then directed to a ... | 02/05/1991 |
| 4981263 | Paint booth thermal reclamation system for space heating A paint spray and bake booth has an air heating and circulating system with two blowers and a combination of dampers and ducts which provide different air circulating circuits for the spraying and baking steps. A gas fired furnace with heat exchanging sys... | 01/01/1991 |
| 4911359 | Apparatus for and method of recovering chimney heat This disclosure relates to a heating system for a building having a chimney, which heating system incorporates a heat collecting recovery unit including a recovery exchanger set atop the chimney, an underground reservoir, a circulating pump, and an exchan... | 03/27/1990 |
| 4813396 | Methods and apparatus for changing liquid temperature Water heating methods and apparatus feed a combustible mixture of gas and air to an axial inlet of a cylindrical radiant surface burner and conduct water to be heated through a heat exchanger encompassing that cylindrical radiant surface burner as a cylin... | 03/21/1989 |
| 4756475 | Gas-fired boiler The boiler, which is of the wall-mounting kind, comprises: a burner connected to a gas supply part; a combustion chamber; a heat exchanger; distribution, exchange and control components and communicating passages between them; inlet and outlet lines conne... | 07/12/1988 |
| 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 on its bottom with outlet means to the firebox. The water... | 02/16/1988 |
| 4723705 | Device for ventilating a closed conduit system A ventilating device for a closed conduit system comprising a housing (7) with a liquid throughflow conduit (11) extending through end walls (8,9) of the housing. The throughflow conduit (11) has a liquid permeable part (13) which is directed towards an u... | 02/09/1988 |
| 4681257 | Hot-water-furnace supplemental heater A hot-water-furnace supplemental heater (60) replaces a manifold (48) used with a normal hot-water-furnace (10) having multiple furnace heating tubes (22). The supplemental water heater has a housing with a false bottom (66) and a supplemental tube (67) e... | 07/21/1987 |
| 4653573 | Connecting apparatus for a radiator The invention relates to apparatus for connecting a radiator to a single or double tube type hot water central heating system. The connecting apparatus includes a conventional thermostatic valve and a conventional valve controlled bypass between the inlet... | 03/31/1987 |
| 4638853 | Apparatus for conditioning and controlling the temperature of rooms in a building In order in a facade comprising hollow uprights and hollow upper and lower transverse crossbars to be able to dispense with an expensive air-conditioning installation, a cross-stream blower is arranged under a railing crossbar. Over the cross-stream blowe... | 01/27/1987 |
| 4623093 | Combination discharge and supply fitting for hot water tank Compact, easily installable apparatus is disclosed for attachment to a conventional domestic hot water heater tank using only the preexisting threaded drain valve opening normally provided, in order to convert the heater into a simple storage tank and eff... | 11/18/1986 |
| 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 preheat chamber and being provided with a plurality of spaced... | 09/23/1986 |
| 4601426 | Excess-pressure-free boiler and accumulator heating system The heating system includes water-radiators, a heat source as a boiler and/or one or more water-accumulators, an expansion vessel and a pipe-circulation system interconnecting the radiators and the source through which the water is pumped. The system is i... | 07/22/1986 |
| 4593853 | Plastic pipe having an oxygen-impermeable casing A plastic pipe comprising an oxygen-impermeable casing, wherein the casing comprises a barrier layer for oxygen, and an adhesive layer adjacent to the circumferential surface of the pipe and attached to the circumferential surface by an sealed bond, where... | 06/10/1986 |
| 4588124 | Heat-exchanging system for an enclosed space A heat-exchanging system for an enclosed space having wall-forming members, pipes provided on said members, and being adapted for discharging water for flow along the surfaces of the same, a source of water, a pump connecting said source and said pipes, d... | 05/13/1986 |
| 4564142 | Hydronic system with circulators connected to a header A hydronic multi-zone heating system mounts circulators for circulating liquid between the boiler and the zone so that all components are mounted in a common area for ease of maintenance and repair, as well as for convenient installation. Air removal is a... | 01/14/1986 |
