Matches 1 - 50 out of 108 1 2 3 >
Match Document Document Title
7387721 Apparatus and system for removing scale causing chemicals in hot water systems  
Hot water pipes, in areas with hard water, tend to fill with scale until they no longer pass enough water. De-scaling water pipes with acid is dangerous, expensive and damages the pipes. Ion...
7370648 Water heater system  
A housing has a top, a bottom and side walls. A liner has a top, a bottom, and side walls. The liner is fabricated of glass. A space is provided between the liner and housing. Insulation material...
RE40307 Inlet baffle for water heater  
A baffle for slowing the incoming water flow into a booster heating tank so that the turbulence in the water tank is minimized. The baffle consists of an inner cap and outer cap which are...
7360535 Hot water apparatus  
A hot water apparatus is provided in which heat recovery is performed as much as possible allowing condensate to be generated and excellent heat efficiency is achieved without providing a plurality...
7360506 Low CO water heater  
A water heater including a water container, a combustion chamber adjacent the water heater, a burner associated with the combustion chamber and arranged to combust fuel to heat water in the water...
7346274 Water heater and method of controlling the same  
A water heater including a water inlet line having an inlet opening that introduces cold water to a tank, a water outlet line having an outlet opening that withdraws heated water from the tank, and...
7337517 Method of manufacturing a combustion chamber for a water heater  
A method of manufacturing a combustion chamber for use in a water heater is provided. A skirt is formed, and an edge portion of a plate is spot welded to the skirt. The edge portion of the plate is...
7299769 Condensing gas fired water heater  
A water heater is shown having a closed metal tank with an upwardly mounted combustion chamber and burner/blower assembly. Curved fire tubes convey the products of combustion from the chamber to an...
7299768 Gas-fired water heating apparatus  
The water heating apparatus has an upright cylindrical thermally insulated storage tank, an axially extending exhaust gas pipe passing centrally through the storage tank and a combustion chamber...
7159540 Water heater with air intake and exhaust system  
A water heater including a water container; a combustion chamber adjacent the water container; a burner associated with the combustion chamber; a blower assembly located to receive combustion...
7040258 Low NOx water heater with serpentined air entry  
A fuel-fired low NOx water heater extending along a vertical axis has a radiant fuel burner disposed in its combustion chamber. The entire burner combustion air quantity is delivered to the burner...
7001524 Method for removing scale causing chemicals in hot water systems  
Hot water pipes, in areas with hard water, tend to fill with scale until they no longer pass enough water. De-scaling water pipes with acid is dangerous, expensive and damages the pipes. Ion...
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...
6923148 Combustion chamber with high temperature protective coating  
A combustion chamber for a gas-fired hot water heater comprises a top wall which is defined by a bottom wall of an inner tank. A flue extends through the inner tank bottom wall. A circumferential...
6895902 Water heater with a flame arrester  
A water heater is arranged with the hot water storage chamber R 1 at the top and the combustion chamber R 2 at the bottom within the body 11 which is a container. The combustion chamber R 2 is...
6776154 Solar energy system with direct absorption of solar radiation  
A solar energy system comprises a solar absorber in the form of a solar boiler tank with a lower working liquid region having a liquid inlet and filled with a working liquid capable of boiling...
6745724 Water heater having flue damper with airflow apparatus  
A water heater includes a water tank adapted to contain water; a flue extending through the water tank and having a first end communicating with the water heater's combustion chamber for the flow...
6739517 Non-circulating tank and kit for use with liquid heating unit  
A tank for use with a liquid heating vessel of a hydronic radiant heating system to assist in the simultaneous sealing and venting of air from the system where the heating vessel has a flue for...
6725811 Water heater with low NOx fiber matrix burner  
A water heater having improved operating characteristics and lower costs of manufacturing is described. The water heater has an unified combustion chamber and burner construction with a ceramic...
6715451 Fuel-fired heating appliance with combustion air shutoff system having frangible temperature sensing structure  
A gas-fired water heater has a combustion chamber with a bottom wall defined by a perforated flame arrestor plate forming a portion of a flow path through which combustion air may be supplied to a...
6698385 Combustion chamber shield for hot water heaters  
A shield for a combustion chamber of a hot water heater is described. The combustion chamber is a sealed or not combustion chamber and the metal heat shield encircles and is spaced about the burner...
6626133 Explosion protection sensor for gas appliances  
A device for sensing a dangerous condition includes a sensor that provides a signal when a dangerous condition is sensed by the sensor. A power source is provided which is in communication with the...
6622661 Fuel-fired heating appliance with dilution air/flammable vapor bypass tube and elevated combustion air inlet  
A fuel-fired heating apparatus, representatively a forced draft or natural draft gas-fired water heater having a combustion chamber, is provided with a flammable vapor control system that...
6622660 Blower mixing tee  
An exhaust system for withdrawing a supply of exhaust gases from an exhaust flue of a heater and expelling the exhaust gases to atmosphere at a remote location that includes a mixing tee for mixing...
6591788 Rooftop water heater  
A water heater adapted to be mounted on the rooftop of a building includes a substantially cylindrical tank having a horizontally-oriented longitudinal axis. A U-shaped flue tube has a burner end...
6588377 Process and apparatus for recycling water in a hot water supply system  
A process and apparatus are provided for conserving water and heat energy in a hot water supply system. A holding tank is provided near the Point Of Use to capture unwanted cooled water. An...
6578530 Apparatus and method for feeding air to a water heater  
Combustible vapors from flammable materials spilled near a gas water heater can enter the water heater's combustion chamber and cause a serious fire or explosion. This problem can be avoided by...
6449429 Indirectly heating type of electric boiler apparatus  
Disclosed is an indirectly heating type of an electric boiler capable of operating at a high efficiency using less energy. The boiler comprises a rubber casing including a port for receiving a cool...
6446582 Fuel feedline and vapor barrier assembly  
An apparatus and method for extending a gas feedline through a vapor barrier enclosure simplifies and reduces the costs associated with manufacture and installation while establishing a seal...
6446581 Flammable vapor resistant water heater with low NOx emissions  
A water heater including a water container, a combustion chamber adjacent the container, the combustion chamber having a side wall and at least one flame arrestor to admit air and extraneous fumes...
6435140 Gas-fired heaters with burners having a substantially sealed combustion chamber  
A gas-fired combustion apparatus includes a burner disposed in a substantially sealed combustion chamber and a permeable flexible member arranged to suppress pressure fluctuations within the...
6418884 Fuel-fired heating appliance having flame arrestor plate with associated scale deflector shield  
A fuel-fired heating appliance, representatively a gas-fired water heater, has a combustion chamber with a flame arrestor plate forming a bottom wall thereof. The arrestor plate has a spaced series...
6418883 Ignition inhibiting gas water heater  
A gas water heater including a water container adapted to be heated by a gas burner; and an enclosure surrounding the burner, the enclosure having at least one entryway adapted to allow air and...
6338319 Water heater with flammable vapor flame arrestor and method of operation  
A water heater having a water-tight tank and a sealed combustion chamber in which the fuel burner is mounted. A flame arrestor is mounted in the bottom wall of the combustion chamber. The arrestor...
6302062 Sealed access assembly for water heaters  
A water heater including a water container; a combustion chamber containing a main burner and a pilot burner positioned to heat water in the water container and having a side wall; a main burner...
6293230 Water heaters with flame traps  
A gas water heater including a water container adapted to be heated by a gas burner; and an enclosure surrounding the burner, the enclosure having at least one entryway adapted to allow air and...
6244223 Power burner type fuel-fired water heater with quick change manifold assembly  
A power burner type gas-fired water heater has a fuel supply manifold which is mounted within a sealed plenum box and supplied with gas from a valve externally mounted on the plenum box and coupled...
6237586 Heater trough apparatus  
A heater trough apparatus for heating water used for cleaning. The heater trough apparatus includes a tank mounted upon a plurality of leg members each having an adjustable feet member threaded...
6223697 Water heater with heat sensitive air inlet  
A gas water heater including a water container adapted to be heated by a gas burner; and an enclosure surrounding the burner, the enclosure having at least one heat sensitive entryway adapted to...
6199515 Baffles for water heaters  
A water heater baffle having an inlet and an outlet for the passage of water therethrough, the baffle being arranged to force the water entering the baffle through a labyrinth before exiting the...
6192810 Laminar flow air register  
A register for use in conjunction with kraft recovery boilers or bark-fired boilers utilizes a pair of shaped damper foils to reduce turbulence and induce laminar flow of air from an associated...
6155211 Air inlets for water heaters  
A gas water heater including a water container adapted to be heated by a gas burner; and an enclosure surrounding the burner, the enclosure having at least one entryway adapted to allow air and...
6138612 Slow pull dryer which can smoothly remove particles floating over the surface of its hot water tank  
This invention relates to a slow pull dryer comprising a rectangular water tank and a wave eliminator. The water tank has four vertical side-walls and a bottom plate with a water hole for filling...
6123050 Sanitary stainless steel heating system  
A sanitary fluid heater includes a corrosion resistant stainless steel housing, a stainless steel cap securely positioned over an open end of the housing, and a heating element disposed within the...
6116195 Flame traps for water heaters  
A gas water heater including a water container adapted to be heated by a gas burner; and an enclosure surrounding the burner, the enclosure having at least one entryway adapted to allow air and...
6083098 Collective air intake and exhaust chimney  
A collective air intake and exhaust chimney suitable for outdoor installation which avoids clogging by snow or frost, which comprises an inner flue (8), a heat insulating layer (12), an outer flue...
6058892 Safety air flow control and routing apparatus for a water heater, water heater incorporating the apparatus, and method of using same  
An air flow control and routing apparatus for attaching to a water heater, to restrict entry of floor-level gases into the water heater, includes a substantially annular skirt for surrounding a...
5918591 Gas hot water heater safety shield  
An appliance safety shield for gas-burning appliances to prevent heavier-than-air vapors from contacting a pilot light, the safety shield including a floor structure for mounting the safety shield...
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...
5845632 Vent damper including pivot poppet  
A vent damper is provided for limiting the flow of ambient air through the central core of a hot water heater having a combustion chamber, the central core forming an exhaust port leading to an...
Matches 1 - 50 out of 108 1 2 3 >