Matches 1 - 48 out of 48


Match Document Document Title
US20140026879 NATURAL FUEL HEATING SYSTEM  
The natural fuel heating system includes an elongate firebox covered by a cowling. The firebox includes means for accessing the interior thereof for fuel placement and vents at opposite ends. The...
US20110244408 HEATER  
A heater including a heat dump opening and a heat dump cover moveable between an open and a closed position to selectively block flow of fluid through the heat dump opening. The heat dump opening...
US20110174891 FURNACE BURNER BOX  
An HVAC burner box includes a burner bank, a manifold and an air director located within an enclosure. The burner bank is oriented such that an outlet end of the burner bank is directed toward a...
US20120240917 HEATING APPLIANCE FOR AIR HEATING  
A heating appliance including a burner and a heat exchanger including a bundle of heat conducting elements that form the primary channels through which the hot flue gases from the burner are...
US20120241529 SIDE CHANNEL BLOWER FOR A VEHICLE HEATER  
A side channel blower for a vehicle heater includes a blower housing area (14) with a delivery channel (18), which extends in a ring-shaped pattern around a central axis (A) and is open on an...
US20120080023 Method And System For Controlling An Inducer In A Modulating Furnace  
A furnace includes an induced draft blower; an inducer motor driving the induced draft blower; and a furnace control determining a modulation percentage, the furnace control controlling RPM of the...
US20130104873 PELLET FURNACE  
A pellet furnace includes a pellet feed assembly, a conveyor assembly, a combustion blower assembly, a baffle assembly, and a control system. The pellet feed assembly includes a distribution tray...
US20110303211 Efficient Forced Air Heater  
Provided is a forced air heater. The forced air heater may comprise a housing defining a duct. The duct may be adapted for a flow of fluid therethrough. The heater may be adapted to provide a flow...
US20110247603 Furnace Vent with Water-Permeable Inner Pipe  
A vent system for improving the efficiency and/or reducing emissions of a combustion device is disclosed. The vent system may include an outer pipe and an inner pipe having a longitudinal section...
US20130306048 Indoor Coil Adapter  
An adapter for controlling airflow between a first element and a second element in an air conditioning system is provided including a frame having a first frame piece and a second frame piece. A...
US20110146651 Altitude Adjustment for Heating, Ventilating and Air Conditioning Systems  
HVAC systems and methods are shown which use volumetric air flow and static pressure calculations that correct for different air densities encountered at different altitudes. With respect to the...
US20150153070 Furnace and Method for Heating Air  
A furnace for heating air includes a primary heat exchanger and a secondary heat exchanger to transfer heat from a flow of hot gases, the secondary heat exchanger being arranged downstream from...
US20110297139 WARM AIR FURNACE  
A drain pipe 54 includes an upper end portion 54a which is connected to a concave 38a of a leading end 38 of an exhaust tube 34, and a lower end portion 54b which is opened to the inside of a warm...
US20120192849 FURNACE WITH PRIMARY AND SECONDARY HEAT EXCHANGERS  
A furnace that includes a heater configured to heat a fluid and discharge a heated fluid flow, a first heat exchanger at least partially positioned in a air duct and in fluid communication with...
US20140020669 HVAC Furnace  
A heating, ventilation, and/or air conditioning (HVAC) furnace has a flat burner comprising an upstream side and a downstream side, the flat burner being configured to receive an air-fuel mixture...
US20110174291 CLAMSHELL HEAT EXCHANGER  
A clamshell heat exchanger includes a first clamshell half and a second clamshell half. When joined, the first and second clamshell halves form a passageway having an inlet and an outlet. The...
US20110100349 Modulating Gas Furnace  
A method controls a modulating gas furnace by monitoring a differential pressure associated with the modulating gas furnace, learning an intermediate value associated with an intermediate capacity...
US20120251965 Heating Device  
The invention relates to a heating device, in particular for mobile use, comprising a combustion chamber for reacting fuel with combustion air in order to release heat, a heat exchanger for...
US20120048257 Condensing Gas Package Unit Configured to Drain Condensate Through Inducer Fan and Method of Reducing Fuel Consumption  
Air conditioning units packaged with condensing gas heat exchangers where condensate from the heat exchanger passes through the inducer fan, into an exhaust conduit, and out of the unit enclosure,...
US20140373568 DIRECT VENTING SYSTEM FOR FREE-STANDING PROPANE POWERED ABSORPTION REFRIGERATOR  
A direct venting system for a free-standing propane powered refrigerator is disclosed. The direct venting system pre-installed on the refrigerator, the system having an air intake for drawing air...
US20110174201 FURNACE, A METHOD FOR OPERATING A FURNACE AND A FURNACE CONTROLLER CONFIGURED FOR THE SAME  
A controller for a gas furnace, a computer-usable medium for implementing a method and a gas furnace are disclosed herein. In one embodiment, the controller includes: (1) an interface configured...
US20120148963 Induced-Draft Low Swirl Burner for Low NOx Emissions  
A burner for use with an induced draft furnace and which satisfies reduced nitrous oxide (NOx) emission standards is disclosed. The burner may employ a mechanical swirler that introduces a...
US20100078007 High Efficiency Furnace/Air Handler Blower Housing with a Side Wall Having an Exponentially Increasing Expansion Angle  
An air distribution blower housing for an air handler such as a residential furnace is designed with a volute-shaped outer wall that has an exponentially increasing expansion angle in the...
US20130042851 Furnace Control System and Method  
A method for operating a furnace system includes initiating a start sequence comprising starting an inducer fan operative to induce an air flow through a burner assembly, a heat exchanger portion...
US20140202443 Fuel/Air Furnace Mixer  
A heating, ventilation, and/or air conditioning (HVAC) furnace has a venturi premixer and a disturber disposed downstream relative to the premixer and in an undivided output of the venturi premixer.
US20110108015 Gas-Fired Heater with Carbon Dioxide Detector  
A portable gas-fired heater comprising a housing, a burner assembly, and a carbon dioxide detector system. The housing is adapted to at least partially enclose a fuel source. The burner assembly...
US20090025654 Automatically controlled outdoor pelletized bio-fuel-burning hydronic heater  
A heating system has a heating unit with a combustion chamber for burning wood pellets or other pelletized fuel. The heating unit is controlled by a process control module that automatically keeps...
US20130233293 BURNER FOR GAS-FIRED AIR HEATER  
A burner assembly for a grain bin for heating air moving through the assembly to dry grain in the bin. The burner assembly has a collector adapted to receive fuel from a fuel line. A burner...
US20100263653 High Efficiency Furnace/Air Handler Blower Housing with a Side Wall Having an Exponentially Increasing Expansion Angle  
An air distribution blower housing for an air handler such as a residential furnace is designed with a volute-shaped outer wall that has an exponentially increasing expansion angle in the...
US20090314275 WARM AIR FURNACE  
A warm air furnace capable of reliably carry out the fuel consumption conserving operation notwithstanding the condition such as the heating load is provided. The warm air furnace is equipped with...
US20130098350 LOW EMISSIONS DIRECT FIRED AIR HEATER  
Method of combusting hydrocarbon fuel to form combustion products low in nitrogen dioxide (NO2) and carbon monoxide (CO) and mixing the combustion products with additional air to provide a heated...
US20100162587 Hot gas generator and drying or dehydration facility implementing such a generator  
The subject of the invention is a hot gas generator (8), particularly for a dehydration or drying unit, the generator comprising a burner or hearth (9) and being characterized in that it comprises...
US20120304977 Integrated Structure of Air Heater  
An integrated structure of an air heater includes at least an air blowing unit, at least an air passage housing, a heating arrangement, and a overheat protection unit, which are fastened with each...
US20110094492 DEVICE FOR FEEDING WATER STEAM VIA A HEAT EXCHANGER IN A COMBUSTION CHAMBER AND A METHOD  
The invention relates to a device for feeding heated water steam via a heat exchanger in a thermal engine and method for using said device.
US20140261370 DUAL BYPASS DIRECT FIRED HEATING SYSTEM WITH PRESSURE CONTROL  
A burner box for use in an air handling system. The burner box includes a main body having a top wall, a bottom wall, side walls extending between the top and bottom walls, and intermediate walls...
US20120012092 AUTO CURE VARIABLE FAN DRIVE CONTROL SYSTEM AND ASSOCIATED METHODS  
Methods and systems for controlling air characteristics for storage facilities. A controller and temperature sensors can detect an external temperature and compare it to a reference temperature....
US20100175679 Hot-Air Furnace Module and Hot-Air Furnace  
The invention relates to a hot-air furnace module having a furnace space, which is at least partially delimited by walls and is assigned an air-delivery device for producing an airstream and a...
US20100126491 BURNER FOR COMBUSTION OF FUEL IN PELLET OR GRANULAR FORM  
A burner for fuel in pellet or granular form in which the fuel has a high ash content, for example grass or hay pellets in which the ash content is 5% or more. The burner has a combustion chamber...
US20110283986 Apparatus for Improved Efficiency of an Air Conversion Device  
An apparatus includes a housing including a first side having a first opening and a second side having a second opening. At least one fan creates an airflow through the housing between the first...
US20100294257 Direct-fired heating system  
A direct gas-fired heating unit is provided which uses an axial-bladed fan for generating a main air flow through a burner unit. The burner unit has a dedicated combustion air blower supplying...
US20140248832 Method and Apparatus to Provide Ventilation for a Building  
An improved method and apparatus allows fresh air to be introduced into a building through action of a special manifold which directs air entering the building through the furnace combustion feed...
US20120251960 High Uniformity Heating  
A method includes the steps of operating a regenerative burner in cycles, including a firing cycle in which fuel and combustion air are discharged from the burner into a process chamber, and a...
US20120199109 Method And System For Variable Speed Blower Control  
A method of controlling a blower motor in a furnace includes applying control signals to the blower motor; determining that a reference airflow through a portion of the furnace is present;...
US20100212651 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...
US20160215977 System for Controlling Combustion Air  
The object of the invention is to provide a system for controlling combustion air supply, in which the air supply to the primary and secondary air supply can be infinitely variable. The object is...
US20160186990 FURNACE INDUCER CHOKE AND A GAS FURNACE EMPLOYING THE SAME  
A furnace inducer choke and a gas furnace employing the furnace inducer choke. In one embodiment, the furnace inducer choke includes: (1) a choke body configured to engage a furnace inducer...
US20150338088 FURNACE COMBUSTION SYSTEM AND METHOD  
A furnace system includes a burner assembly configured to generate combustion products within a primary combustion zone comprising one or more burners. The furnace system includes a panel disposed...
US20140202442 CONDENSING HEAT EXCHANGER FINS WITH ENHANCED AIRFLOW  
A plate fin for a heat exchanger is provided including a base plate having a plurality of holes formed therein. The plate fin also includes a plurality of generally annular collars. Each collar is...

Matches 1 - 48 out of 48