One aspect of this disclosure provides a heating chamber for a gas furnace that comprises opposing halves joined together. The joined opposing halves form a clamshell panel having at least one truncated corner located adjacent a curve located at a back end of a chamber path of the one or more clamshell heating chambers.

The present invention relates to a multi-functional convection electric heater, comprising: a heating structure, which comprises a ceramic tubular device and a convection device, used to supply a heating source, and the convection device is connected with the ceramic tubular device, and is used to receive the heat supplied from the ceramic tubular device, and performs subsequent heating in a convection manner; a CMOS sensing device, which is used to capture a surrounding environment to obtain and output a corresponding surrounding environment image; and a homomorphic filtering device, which is connected with the CMOS sensing device, and is used to receive the surrounding environment image, and performs homomorphic filtering to obtain a corresponding homomorphic filtering image, wherein as the noise amplitude of the surrounding environment image gets larger, the intensity of performing the homomorphic filtering will be increased. The present invention enriches the electronic functions of the convection electric heater.

The present invention relates to a multi-functional convection electric heater, comprising: a heating structure, which comprises a ceramic tubular device and a convection device, used to supply a heating source, and the convection device is connected with the ceramic tubular device, and is used to receive the heat supplied from the ceramic tubular device, and performs subsequent heating in a convection manner; a CMOS sensing device, which is used to capture a surrounding environment to obtain and output a corresponding surrounding environment image; and a homomorphic filtering device, which is connected with the CMOS sensing device, and is used to receive the surrounding environment image, and performs homomorphic filtering to obtain a corresponding homomorphic filtering image, wherein as the noise amplitude of the surrounding environment image gets larger, the intensity of performing the homomorphic filtering will be increased. The present invention enriches the electronic functions of the convection electric heater.

Flow modulator (10) for a fluid like combustion gas, comprising: a housing (11), a modulator body (14) positioned with the housing (11), and a valve body (18) positioned with the housing (11). The modulator body (14) has a flow channel (15) and an opening (16) providing together a flow passage (17) for the fluid. The valve body (18) is provided by a foil element (19), wherein the foil element (19) has an opening (20) for the fluid, wherein the foil element (19) is rotatable relative to the modulator body (14) to modulate the flow of the fluid by adjusting an overlap between the opening (20) of the valve body (18) and the flow passage (17) of the modulator body (14), and wherein the foil element (19) is positioned up-stream of the modulator body (14) such that an inlet pressure of the fluid presses the foil element (19) against the modulator body (14) thereby providing a sealing level between the foil element (19) and the modulator body (14).

Flow modulator (10) for a fluid like combustion gas, comprising: a housing (11), a modulator body (14) positioned with the housing (11), and a valve body (18) positioned with the housing (11). The modulator body (14) has a flow channel (15) and an opening (16) providing together a flow passage (17) for the fluid. The valve body (18) is provided by a foil element (19), wherein the foil element (19) has an opening (20) for the fluid, wherein the foil element (19) is rotatable relative to the modulator body (14) to modulate the flow of the fluid by adjusting an overlap between the opening (20) of the valve body (18) and the flow passage (17) of the modulator body (14), and wherein the foil element (19) is positioned up-stream of the modulator body (14) such that an inlet pressure of the fluid presses the foil element (19) against the modulator body (14) thereby providing a sealing level between the foil element (19) and the modulator body (14).

A solar phase-change energy storage heating ventilation partition wall and modular heating system thereof, the partition wall consists of a solid partition wall (1), a thermal insulation layer (2), a decoration layer (3), frame of steel reinforcement (4), reflecting layers (5) and phase-change heat storage modules (6), the modular heating system comprises a solar air collector (13), phase-change heat storage units (23) arranged modularly, and a partition wall, to achieve energy storage and heating. Compared with the prior art, the modular heat storage partition wall components are simple in manufacturing process and flexible in assembly, and can be freely arranged and combined according to actual conditions; the system collects solar energy by the solar air collector during the daytime and stores the heat in the phase-change heat storage modules in the partition wall; and the heat storage partition wall can provide heat for the room in a radiation manner.

A furnace including a combustion chamber for burning fuel can have increased fuel burning efficiency, increased heating efficiency, and decreased harmful emissions of combustion byproducts. A combustion air delivery system delivers primary and secondary combustion air to the combustion chamber. Primary and secondary combustion air may be delivered at amounts that increase burning efficiency. An amount of secondary combustion air can be controlled by a valve system. A heat transfer device efficiently transfers heat from products of combustion for heating an enclosed space.

A furnace including a combustion chamber for burning fuel can have increased fuel burning efficiency, increased heating efficiency, and decreased harmful emissions of combustion byproducts. A combustion air delivery system delivers primary and secondary combustion air to the combustion chamber. Primary and secondary combustion air may be delivered at amounts that increase burning efficiency. An amount of secondary combustion air can be controlled by a valve system. A heat transfer device efficiently transfers heat from products of combustion for heating an enclosed space.

A condensate drain system for a heating, ventilation, and/or air conditioning (HVAC) system includes a heat exchanger having a plurality of tubes configured to receive ambient air and fluidly coupled to a drain via a conduit, a valve positioned along the conduit between the plurality of tubes and the drain, where the valve is configured to enable a flow of condensate from within the plurality of tubes toward the drain in an open position and the block the flow in a closed position, and a controller configured to adjust a position of the valve based on feedback indicative of an operational state of the HVAC system.

A condensate drain system for a heating, ventilation, and/or air conditioning (HVAC) system includes a heat exchanger having a plurality of tubes configured to receive ambient air and fluidly coupled to a drain via a conduit, a valve positioned along the conduit between the plurality of tubes and the drain, where the valve is configured to enable a flow of condensate from within the plurality of tubes toward the drain in an open position and the block the flow in a closed position, and a controller configured to adjust a position of the valve based on feedback indicative of an operational state of the HVAC system.