Rheem Manufacturing Company

American Water Heater Company

Srp 687 Pty. Ltd.

Rinnai America Corporation

Flame Guard Water Heaters, Inc.

Timothy J Shellenberger

Amin Akbarimonfared

Darryl J Farley

Robert Steven Neihouse

Scott Alan Willbanks

Nathan Taylor Whalen

Shawn Allan Reed

Thomas A Edds

Anthony Krell

Atilhan Manay

William T Harrigill

James York

Shawn Allen Reed

Qian Zhang

Troy E Trant

Robert L Long

Scott Gilman Humphrey

Satya Kiran Gullapalli

Reza Khatami

Diane M Jakobs

Harshad V Inamdar

Fred A Overbey, Jr

Divakar Mantha

Vishwanath Reddy Ardha

Mickey E Batson

Tyson J Cogburn

Ryan Joseph Valencia

Jeff L Lyons

Juan Garcia

Leonard E Chambers

Shubham Srivastava

Kelsey S Dorrough

Christopher Hertzberg

Juan Cervantes

Trent E Thompson

Gregory Michael Thomas

Garry D Statzer

Aleksandr V Kovalenko

Doug W Dorrough

A combination domestic hot water and space heating system is disclosed. The system includes two refrigerant circuits, one dedicated to heating potable water in a water storage tank and one dedicated to heating a condenser used to heat a space within a building. A controller sends output signals to valves to vary refrigerant flow into the first refrigerant circuit and/or the second refrigerant circuit. The variation in refrigerant flow can be provided by a single multi-directional valve, one or more valves placed at a first end of each refrigerant circuit, and/or one or more electronic expansion valves placed at the end of each refrigerant circuit. Portions of the system can be placed into a single housing, thereby reducing installation costs and labor.

Combined space and water heating systems

A fuel-fired furnace incorporates specially designed fuel/air mixing and combustion structures. The fuel/air mixing structure is of a mixing sound-attenuating design and includes a venturi having a perforated sidewall portion and being surrounded by a noise-damping housing chamber communicating with the interior of the venturi via its sidewall perforations. During use of the mixing structure, air is flowed through the venturi in a swirling pattern while fuel is transversely injected internally against the swirling air. The combustion structure includes a burner box housing into which the fuel/air mixture is flowed, combusted, and then discharged as hot combustion gas into and through the heat exchanger tubes. The fuel/air mixture entering the burner box housing initially passes through a non-uniformly perforated diffuser plate functioning to substantially alter in a predetermined manner the relative combustion gas flow rates through the heat exchanger tubes.

Fuel/air mixture and combustion apparatus and associated methods for use in a fuel-fired heating apparatus

The disclosed technology includes a water heater system having a blower, an igniter, a burner, a heat exchanger, and a refractory configured to attach to the burner and the heat exchanger. The refractory can include a unitary ceramic housing having a top and a plurality of sidewalls and be configured to retain heat from combustion gases. The top can have a burner aperture configured to receive at least a portion of the burner and the plurality of sidewalls can form a cavity configured to receive at least a portion of the heat exchanger. One or more of the sidewalls can additionally have a protrusion extending laterally along an inside surface of the sidewall that is configured to contact the heat exchanger to form a seal between the heat exchanger and the refractory. A sealing material can substantially create a seal between the refractory and the heat exchanger.

Single-piece refractory for a water heating assembly

A boiler can have a combustion chamber, a burner, a heat exchanger in fluid communication with the combustion chamber, and a flue for removing a combustion product from the boiler. The burner has a protruding taper shape such as a cone or similar shape. The protruding taper shape of the burner distributes heat to the heat exchanger more evenly than a cylindrical shaped burner thereby reducing heat losses at the combustion chamber wall and increasing the thermal efficiency. The protruding taper shape of the burner also reduces noise associated with the operation of the burner.

Optimized burners for boiler applications

A fuel-fired furnace incorporates specially designed fuel/air mixing and combustion structures. The fuel/air mixing structure is of a mixing sound-attenuating design and comprises a venturi having a perforated sidewall portion and being surrounded by a noise-damping housing chamber communicating with the interior of the venturi via its sidewall perforations. During use of the mixing structure, air is flowed through the venturi in a swirling pattern while fuel is transversely injected internally against the swirling air. The combustion structure comprises a burner box housing into which the fuel/air mixture is flowed, combusted, and then discharged as hot combustion gas into and through the heat exchanger tubes. The fuel/air mixture entering the burner box housing initially passes through a non-uniformly perforated diffuser plate functioning to substantially alter in a predetermined manner the relative combustion gas flow rates through the heat exchanger tubes.

An air sanitation device is disclosed. The air sanitation device can include a base section, a body section, and an air movement device configured to move air through at least a portion of the air sanitation device. The air sanitation device can move air from an inlet of the air sanitation device, and past an ultraviolet (UV) light source, and out an outlet of the air sanitation device. The air sanitation device can be configured to draw in air from within or below a breathing zone. The air sanitation device can be configured to draw in air from below the breathing zone and output sanitized air. The sanitized air can be outputted at an angle such that the sanitized air flows in a generally downward direction.

Air sanitation devices and systems

To substantially reduce inequality in hot combustion flow rates through first and second heat exchanger tubes from a fuel-fired heating appliance burner box connected thereto and internally combusting a fuel/air mixture received therein from a source thereof to create the hot combustion gas, a perforated diffuser member having a non-uniform perforation pattern is provided. The fuel/air mixture is flowed through the perforated diffuser member into the interior of the burner box. The non-uniform perforation pattern of the diffuser member functions to alter relative combustion gas flow rates through the first and second heat exchanger tubes in a manner reducing an undesirable operating temperature differential therebetween.

Diffuser plate for premixed burner box

A fuel-fired heating appliance comprises a burner and a first housing adjacent the burner so that an interior of the first housing receives combustion gasses from combustion at the burner. A heat exchanger defines a second housing with an inlet proximate an outlet of the first housing so that the inlet of the second housing receives combustion gasses from the outlet of the first housing, and wherein the first and second housings attach at an interface. A barrier extends within, and across an interface between, the outlet of the first housing and the inlet of the second housing and defines a thermal resistance that inhibits heat transfer from the combustion gasses to the interface.

Pre-mix fuel-fired appliance with improved heat exchanger interface

A burner assembly for a fuel-fired heating appliance that defines a direction of flow of a fuel and air mixture in a flow path. The burner assembly comprises a plurality burners defined in a unitary mesh structure. Each burner defines at least one peak at a distal end thereof in a direction of flow of a fuel and air mixture. The burner assembly also comprises a diffuser plate having a plurality of perforated areas defined therein and one or more imperforate areas between respective perforated areas of the plurality of perforated areas. The perforated areas respectively correspond to the plurality of burners. The diffuser plate is disposed in a fixed position upstream of the mesh structure so that, when the burner assembly is disposed in the flow path, a respective flow of the fuel and air mixture is directed from each of the plurality of perforated areas to its corresponding burner of the plurality of burners.

Fuel-fired heating appliance having improved burner assembly

A water heating system including a water container having a cold water inlet that connects to a water supply, a hot water outlet, a water heater outlet and a water heater inlet; an instantaneous water heater mounted to the water container and having a tank supply inlet connected to the water heater outlet, a tank supply outlet connected to the water heater inlet, a burner, and a heat exchanger located adjacent the burner between the tank supply inlet and the tank supply outlet; a pump connected between the water container and the instantaneous water heater that moves water between the water container and the instantaneous water heater; and a controller that operates the pump and the burner.

Water heating system

An air conditioning system condensing unit has a specially designed chassis providing enhanced serviceability access to various air conditioning components operatively disposed therein. A removable vertical peripheral outer side wall section of the chassis underlies a removable peripheral top side wall section thereof. Removal of these two side wall sections creates in the chassis an opening conveniently providing both horizontal and vertical service access to the air conditioning components within the interior of the chassis.

Air conditioner and heat pump condensing unit chassis with enhanced serviceability access

A water heater including a water reservoir container having a cold water inlet and a hot water outlet, a combustion chamber adjacent the water container, a burner associated with the container; a temperature probe associated with the container that detects a water temperature in an upper portion of the container, and a controller that activates the burner, the controller establishing an initial water temperature set point, comparing detected water temperature with the set point when the burner is activated, reducing the set point by a first selected amount when the water temperature decreases by less than a selected amount while the burner is activated or increasing the set point by a second selected amount when the water decreases by a selected amount of more while the burner is activated.

Energy saving water heater

Growing community of inventors

Tyrone, GA, United States of America

Timothy J Shellenberger