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Match Document Document Title
9004018 High efficiency gas-fired water heater  
The efficiencies of illustrative embodiments of vertical center flue type fuel-fired base water heaters are improved by installing in the water heaters variously configured tubular condensing type...
8955467 Steam boiler  
A steam boiler includes a boiler housing. A helical coil for boiling water and superheating the wet steam is disposed within the boiler housing. A burner emits combustion gases which heat a heat...
8901468 Electromagnetic energy heating system  
A heating system for hot water and conditioned air uses electromagnetic energy created by one or more magnetrons operated by high voltage transformers. The heating system includes oil cooled...
8851065 Dual fuel heating system with pressure sensitive nozzle  
A heating system can include certain pressure sensitive features. These features can be configured to change from a first position to a second position based on a pressure of a fuel flowing into...
8651065 Heated animal water tank  
An animal water tank that is heated to prevent freezing. The tank has a bottom with at least one upwardly extending sidewall to define sides of the tank. A tunnel defining a watertight channel...
8636226 Aid for loading a solid fuel boiler coupled with an accumulation system  
The invention relates to a method for estimating the fuel supply of a boiler, for a building (2) having a boiler (4) and energy accumulation means (4′), in order to ensure a desired indoor...
8534276 Tea kettle  
Embodiments of the present invention relate to an improved kettle using conduction and convection, yielding improved boiling efficiency and methods of making the same. In one embodiment, a tea...
8505529 Alternate intake apparatus  
The present invention relates generally to 90% Annual Fuel Utilization Efficiency gas or oil burning devices that depend on external air for combustion. More particularly it discloses an alternate...
8490886 Modulating boiler system  
A modulating boiler system for heating a structure including a controller, a boiler operatively connected to the controller, and a thermostat operatively connected to the controller and boiler....
8480006 Vehicle supplemental heating system  
Disclosed herein is a supplemental heating system including a liquid heat generator having a hydrodynamic chamber for selectively heating a fluid. The hydrodynamic chamber having an inlet port for...
8469283 Liquid heat generator with integral heat exchanger  
Disclosed herein is an exemplary supplemental heating system including a hydrodynamic heater and a heat exchanger. The hydrodynamic heater includes a hydrodynamic chamber disposed within an...
8464963 Viscous coolant heater with variable coolant pump drive  
A system for supplying supplemental heat to a vehicle, particularly a vehicle with a diesel engine, A driven viscous plate with different viscous clutch faces on either side is provided between...
8408197 Submergible combustion burner  
A burner apparatus includes a first tube having a first longitudinal bore and a second tube having a second longitudinal bore. The second tube is disposed within the first longitudinal bore such...
8302876 Vehicle supplemental heating system  
A preferred embodiment supplemental heating system is fluidly connectable to a vehicle cooling system and includes a liquid heat generator operable for heating a cooling fluid delivered to the...
8182760 Steam sterilizer  
The present invention provides a steam sterilizer including a primary container and a secondary container. The primary container includes a primary base. The interior of the primary base is...
8113440 Vehicle supplemental heating system including spool valve manifold  
Disclosed herein is an exemplary supplemental heating system including a liquid heat generator having a hydrodynamic chamber for selectively heating a fluid. The supplemental heating system...
7743936 Water heater  
A water heater comprising: a case main body; a front cover for closing a front opening of the case main body; a waterproof packing member interposed between a first inner peripheral flange formed...
7337828 Heat transfer using a heat driven loop  
A heat transfer fluid medium (25) within the closed system is arranged to boil to form a vapor in the evaporation section (12) and such that release of heat from the condensation section (11) to...
7055466 Control system for a portable instant hot water heater  
A portable instant water heater. Water is delivered to a base unit of the instant hot water heater by a pump that draws water from a reservoir through a flow control valve. The water flows into a...
7013841 Differently configured fuel-fired water heaters constructed from identical production platforms  
A specially configured fuel-fired water heater production platform may be used as a natural draft water heater. Alternatively, by modifying an upper end portion of the production platform using...
6951191 Water heater provided with compact design and hot water temperature for human body  
A water heater includes an exhaust hood, a heat exchange module, a main heat valve and a control valve extending downwardly in turn between a case and a plate. Inlet and outlet heads are installed...
6640047 Hybrid water heater with electrical heating unit and combustor  
In a hybrid water heater, a heat pump unit and a combustion heating unit are combined for heating water to be stored in a hot water tank. The combustion heating unit includes a combustor for...
6612301 Water heater  
A water heater comprising a water-tight tank having a combustion chamber located in the bottom portion of the tank. A combustion air blower is operable to draw combustion air into the combustion...
6295980 Composite polymer manifold for water heating unit  
A header for a heat exchanger having a plurality of parallel hollow tubes mounted between a pair of flat mounting plates and defining a plurality of passages through the plates. The header...
6173118 Sensor block and automatic fill valve for water with immersed copper fluid coil  
A pressureless electric water heater for domestic use has a cylindrical double-walled tank for holding a quantity of a heat transfer liquid such as water. Cold water enters a copper coil immersed...
6041742 Fluid heating and pumping apparatus  
A fluid heating and pumping apparatus for use with hot fluid space heating systems includes a fluid tank containing heated fluid and a collapsible bladder contained within the fluid tank for...
6026804 Heater for fluids  
A fluid heater includes a housing, a burner unit disposed in a bottom portion of the housing for burning combustible fuel, a combustion chamber disposed within the housing where the fuel is burned...
6026801 Plug core heat exchanger  
An apparatus (10) for transferring heat to a fluid from combustion gases including a housing (12) extending between a first end (14) and a second end (16). The apparatus further includes a burner...
6019098 Self powered furnace  
A self-powered combustion furnace unit. A combustion furnace providing circulating hot fluid heating is equipped with a thermoelectric generator comprised of a plurality of thermoelectric modules...
5979371 Foam distribution jacket and method of insulating a hot water heater with expandable foam material  
A foam distribution jacket (10) for containing an insulating expandable liquid foam mixture (44) prior to expansion into a space (17) between a hot water tank (22) and an outer casing (29) secured...
5967138 Flash suppressor for hot water heater  
A protective collar means for surrounding the lower periphery of a cylindrical water heater. The collar means comprises a cylinder attached at the top and bottom edges to flanged and grooved rings...
5964215 Heating installation with closed liquid circuit  
The invention relates to a heating installation comprising a closed liquid circuit which is under pressure during operation, in which are incorporated a heating boiler in which heat is supplied to...
5927269 Auxiliary vehicle heater  
An auxiliary vehicle heater includes a combustion air fan, an intermittently rotating, absorbent wick, a glow plug for initiating combustion and a water jacket surrounding a combustion chamber....
5911217 Internally mounted flue damper with exterior free-standing damper drive  
This invention provides a water heater including a water storage tank, a flue, a jacket around the tank and the flue and having a top end, a top cover which extends over the tank and the flue and...
5899198 Self clamping temporary foam dam for protecting water heater electrical components  
A removable dam provides a way to prevent liquid insulation from interfering with electrical components and from squirting out an opening in the jacket of a hot water heater.
5898818 Water feed system at constant temperature keeping the hot water from mixing with the cold water fed during use of the hot water in a single tank  
A water feed system at constant temperature keeping the hot water from mixing with the cold water in a single tank, the cold water being fed during use of the hot water, comprising a cold water...
5878192 Heating element for water heaters with scale control  
An improvement in electrical elements for a water heater includes a mass attached to the element for reducing the deposition of hard water scale on element surfaces, particularly in the return...
5872891 System for providing substantially instantaneous hot water  
A water heater tank is designed to be installed within a wall to provide substantially instantaneous and continuous hot water when the faucet is activated. The tank maintains water at a hot...
5857482 System for control of fluid vessel overflows  
An overflow control system includes a vessel having a liquid input and output, the vessel having a top and bottom defined by the gravity vector. The system further includes a housing peripherally...
5848586 Fire safety collar for gas water heaters  
An air inlet system for gas water heaters that prevents or delays the ignition of fumes from flammable liquids accidentally spilled on the floor. The air inlet is above the quickly combustible...
5838879 Continuously cleaned pressureless water heater with immersed copper fluid coil  
A pressureless electric water heater for domestic use has a cylindrical double-walled tank for holding a quantity of a heat transfer liquid such as water. Cold water enters a copper coil immersed...
5787229 Electric hot water tank with layered storage  
An electric hot water heater tank is fitted with a plurality of separators that divide the tank into a plurality of chambers surrounding the tank axis and extending between the top and bottom...
5761379 Water heater capable of being hung from a support  
A water heater is capable of being hung from a support, and includes a water tank, a water inlet, a water outlet, and a jacket positioned around the water tank so as to define a space between the...
5725833 Water buffered essential oils smokeless incensing system  
A water buffered essential oil non-open flame incensing system including a level fire plate with a metallic fire ring centrally bonded to the upper surface thereof. A stoneware urn is provided...
5690094 Gas flame kettle  
A gas-flame heated, self-contained kettle comprises a housing (12); a gas burner (14) contained within the housing (12); a container (16) for the fluid (18) to be heated, positioned within the...
5642725 Liquid heating apparatus  
A heating apparatus for a liquid includes a vessel (1) having a base and a side walls (2, 3), and a planar electrical element (5) integrated in the base wall (2). In order to render the apparatus...
5588088 Hot water tempering system utilizing a storage tank, a bypass line and a proportional flow controller  
A hot water tempering system tempers the output of a hot water storage tank by mixing that output with a cold water flow in a defined ratio to produce a flow of water at a steady intermediate...
5460161 Campfire water heating apparatus and method  
An apparatus and method for heating and delivering water by use of a campfire, comprising drawing water from a first kettle through a supply hose to a heat exchanger that is placed in the...
5441039 Teapot capable of giving off sound while it pours  
A teapot has a handle provided therein with a receiving space shielded with a cover. The receiving space is intended to house therein a battery set and a circuit board comprising a...
5437264 Waste heat collector for domestic gas water heaters  
A heat collection apparatus which collects the lost or waste heat from a domestic gas water heater. This apparatus sits on top of the water heater over the flue, where the lost heat is directed...

Matches 1 - 50 out of 328 1 2 3 4 5 6 7 >