Matches 1 - 50 out of 57 1 2 >


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US20140165991 BURNER ASSEMBLY FOR A HEATING FURNACE  
A burner assembly for a fuel-fired heating furnace. The assembly comprises a burner body having an inlet opening to receive fuel delivered by a fuel control module, and, to receive an ambient...
US20140030662 COMBUSTION ACOUSTIC NOISE PREVENTION IN A HEATING FURNACE  
A control module for preventing acoustic resonance noise generation from a heat exchanger of a heating furnace, comprising a control signal generated by the control module. The control signal is...
US20150253017 Heating system  
The present invention materially enhances the quality of the environment and mankind by contributing to the restoration or maintenance of the basic life-sustaining natural elements. The present...
US20140023976 COMBUSTION BLOWER CONTROL FOR MODULATING FURNACE  
A furnace includes a combustion blower and one or more pressure switches. In some cases, the one or more pressure switches may be used to calculate one or more operating points for the combustion...
US20120115095 COMBUSTION BLOWER CONTROL FOR MODULATING FURNACE  
A furnace includes a combustion blower and one or more pressure switches. In some cases, the one or more pressure switches may be used to calculate one or more operating points for the combustion...
US20140252100 Gas Fired Modular Blower Control and Associated Methodology  
An air heating and cooling system includes (1) a heat pump, illustratively devoid of auxiliary electric resistance type air heating structure, operative to provide refrigerant-based heating or...
US20080127963 Four-stage high efficiency furnace  
A four-stage furnace includes a gas flow control assembly operable to provide gas to the furnace at one of four firing rates. The furnace also includes a heat exchanger and an inducer blower for...
US20090308372 SELECTABLE EFFICIENCY VERSUS COMFORT FOR MODULATING FURNACE  
A furnace controller for a modulating furnace that helps provide a balance between energy efficiency and occupant comfort across various burner firing rates and/or across various circulating...
US20130139802 GRAVITY-STYLE FURNACE SUBUNIT INSIDE A GAS-INDUCED DRAFT FURNACE  
A gravity-style furnace subunit for a gas-induced draft furnace. A heat conduction tube configured to be located inside of a gas-induced draft furnace cabinet, the heat conduction tube being...
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...
US20140209086 DIRECT FIRED HEATERS INCLUDING PREMIX BURNER TECHNOLOGY  
According to various aspects, exemplary embodiments are disclosed of direct fired heaters including premix burner technology and/or feed forward control loop modulation via inlet air temperature.
US20110309155 Thermostat Algorithm for Fully Modulating Furnaces  
A method and system for operating a modulating furnace from a single-stage thermostat. The furnace control system may include a processor, a gas valve, a variable-speed motor, and a thermostat....
US20120310419 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...
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...
US20120130542 BURNER FIRING RATE DETERMINATION FOR MODULATING FURNACE  
A modulating furnace having a variable rate burner and a controller is operated at a first burner firing rate for a first period of time, and a higher burner firing rate once the first period of...
US20070209605 Modular control and heater assembly  
The present invention involves a water heater and method of manufacturing the same. The water heater includes a tank assembly and a base assembly. The base assembly includes a heater assembly, a...
US20090044794 Inducer speed control method for combustion furnace  
In a multistage combustion furnace having a motor driven inducer blower and a pressure sensing device or set of switches for sensing pressure in the combustion gas flowpath through the furnace, a...
US20150159887 Furnace Control with Safety Circuit and Non-volatile Memory  
A furnace controller circuit includes a microprocessor with input ports and output ports including ports to issue control signals for actuation of inducer, gas burner, and furnace blower. A...
US20130174830 Electronic Water Level Sensing Apparatus and Associated Methods  
A fuel-fired condensing type air heating furnace is provided with an electronic condensate water level sensing system operative to sense improper outflow of condensate from a collector box portion...
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...
US20140154635 FURNACE EFFICIENCY TUNING DEVICE  
A gaseous fuel fired furnace having a vapor condensing flue gas vent conduit, a flue gas flow restrictor disposed in the vapor condensing flue gas vent conduit having a flue gas upstream side and...
US20150053197 FURNACE WITH MODULATING FIRING RATE ADAPTATION  
A furnace is disclosed that includes a burner with a firing rate that is variable between a minimum and a maximum firing rate. After a call for heat is received, the firing rate is set to an...
US20130230812 FURNACE WITH MODULATING FIRING RATE ADAPTATION  
A furnace is disclosed that includes a burner with a firing rate that is variable between a minimum and a maximum firing rate. After a call for heat is received, the firing rate is set to an...
US20130092144 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...
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...
US20050048427 Draft inducer performance control  
A process for controlling the performance of a draft inducer. A desired carbon dioxide and a carbon monoxide level are selected and associated with a desired temperature of a mixed flow of exhaust...
US20130045451 Compensating for Gas Applicance De-Rate at High Altitudes  
Apparatus and methods are provided for compensating for high altitude reduction in the heating capacity of a gas heating appliance, illustratively a gas-fired heating furnace. In a representative...
US20120178031 Push and Pull Premix Combustion System With Blocked Vent Safety Shutoff  
A furnace with a push and pull combustion system is disclosed. The furnace may include a cabinet housing a burner box, a gas valve assembly, a premix chamber, a heat exchanger, a blower, an...
US20080127962 Pressure switch assembly for a furnace  
A pressure switch assembly is used with a furnace controller having a first input and a second input. A first pressure switch is configured to actuate at a first combustion pressure level and is...
US20150219342 AIR CONDITIONING SYSTEM  
An air conditioning system includes a heat pump unit including a radiator usable with a refrigerant, a gas furnace unit including a heating section arranged to heat passing air, a blower arranged...
US20130108971 Rooftop high-efficiency gas furnace control with condensate management  
A method for controlling an efficiency and/or a wet/dry transition area of a condensing furnace heat exchanger section. A temperature can be sensed in an air stream entering the heat exchanger...
US20110290228 WARM AIR FURNACE  
A warm air furnace prevents household articles from freezing in the case where combustion is discontinued due to lack of gas during combustion operation when a house is emptied. The warm air...
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...
US20140147797 System and Method for Controlling a Furnace  
Controlling a modulating gas furnace by monitoring a differential pressure associated with the modulating gas furnace using a low pressure limit switch configured to actuate at a first pressure,...
US20110111352 System and Method for Controlling A Furnace  
Controlling a modulating gas furnace by monitoring a differential pressure associated with the modulating gas furnace using a low pressure limit switch configured to actuate at a first pressure,...
US20110269082 GAS PRESSURE CONTROL FOR WARM AIR FURNACES  
Systems, methods, and controllers for controlling gas-fired appliances such as warm air furnaces are disclosed. An illustrative furnace system can include a burner unit in communication with a...
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...
US20110290229 Dual Fuel Vent Free Gas Heater  
A dual fuel vent free gas heater having at least one gas burner with a plurality of gas outlet ports in an upper surface thereof. The gas outlet ports are in flow communication with at least one...
US20140061322 FURNACE CONTROLLER AND A FURNACE THAT CONTROLS A GAS INPUT RATE TO MAINTAIN A DISCHARGE AIR TEMPERATURE  
Provided herein are embodiments of a multistage gas furnace, a controller therefor and a computer-usable medium having non-transitory computer readable instructions stored thereon for execution by...
US20150204578 HEAT AND ENERGY RECOVERY AND REGENERATION ASSEMBLY, SYSTEM AND METHOD  
A heat recovery system including a chamber having a cooling intake, an emissions intake for receiving exhaust gas from a furnace, and a chamber exhaust to discharge emissions from the chamber, a...
US20140360484 Valves, Pressure Sensing Devices, and Controllers for Heating Appliances  
A valve apparatus includes substantially co-aligned first and second valve seats and substantially co-aligned first and second valve members. The first valve member is moveable relative to the...
US20130312730 Valves, Pressure Sensing Devices, and Controllers for Heating Appliances  
A valve apparatus includes substantially co-aligned first and second valve seats and substantially co-aligned first and second valve members. The first valve member is moveable relative to the...
US20150204567 HVAC CONTROLLER AND METHOD FOR OPERATING AN HVAC SYSTEM BASED ON A DIFFERENCE IN TEMPERATURE BETWEEN RETURN AIR AND SUPPLY AIR AND AN HVAC SYSTEM EMPLOYING THE CONTROLLER OR METHOD  
The disclosure provides an HVAC system, an HVAC controller and a method of operating an HVAC system. In one embodiment, the HVAC controller includes: (1) an interface configured to receive a...
US20170176024 GAS FURNACE FOR HEATING INDOOR SPACE AND CONTROLLING METHOD THEREOF  
A gas furnace for heating an indoor space including a burner forming high-temperature exhaust gas by combusting fuel; an exhaust path in which the exhaust gas flows; a blower for suctioning...
US20170176023 GAS FURNACE FOR INDOOR HEATING  
Disclosed is a gas furnace for indoor heating. The gas furnace includes a burner to generate high-temperature exhaust gas, an exhaust flow path, a blower to suction indoor air through a recovery...
US20160305689 FURNACE HEADER BOX HAVING BLOCKED CONDENSATION PROTECTION, A FURNACE INCLUDING THE HEADER BOX AND A BLOCKED CONDENSATION PROTECTION SYSTEM  
A header box, a furnace and a blocked condensation protection system are disclosed herein. In one embodiment, the header box includes: (1) a first channel having a first channel supply port...
US20160223198 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...
US20160215990 AUXILIARY HEATING SYSTEM  
An auxiliary heating system includes a furnace positioned within a building. The furnace includes an outlet duct and a thermostat electrically coupled to the furnace. The thermostat establishes a...
US20160209054 SELECTABLE EFFICIENCY VERSUS COMFORT FOR MODULATING FURNACE  
A furnace controller for a modulating furnace that helps provide a balance between energy efficiency and occupant comfort across various burner firing rates and/or across various circulating...

Matches 1 - 50 out of 57 1 2 >