Abstract: A viewport for a combustion zone includes an inner casing having a flange extending into the combustion zone. A first layer of ceramic fiber insulation is exterior to the inner casing. A middle casing includes two panes of quartz glass separated by traverse plates. A second layer of ceramic fiber insulation is exterior to the middle casing. An outer casing is positioned to the exterior of the second layer of insulation. The middle casing includes L-shaped ledges having third and fourth layers of ceramic insulation. The panes of glass are each positioned between layers of insulation and the insulation positioned in the L-shaped ledges. The viewport is modular enabling the separation of the first layer of insulation, the middle casing, the second layer of insulation and the outer casing from the combustion zone for maintenance or repair. The viewport minimizes heat migration to the outer casing during use.

Abstract: A venting device with a splash guard for deflection of splashing water entering the interior of the venting device has slats with a front section arranged at the exterior. Venting slots are formed between the front sections. At least one of the slats has a deflection section arranged at the interior and a central section connecting deflection section and front section. The front section and the deflection section are angled relative to the central section. The front section of the at least one slat in the operating position of the venting device extends from the central section toward the top side. The deflection section extends in the operating position from the central section toward the bottom side. The deflection section has a region oriented at an angle of less than 90° relative to the central section. A power tool with such a venting device is provided.

Abstract: A sanitizing system for sanitizing a water flow at a point of use, the sanitizing system including an ozone demand indicator configured for determining the existence of a demand for ozone in the water flow; an ozone generator configured to be disposed no more than about 72 inches upstream of the point of use on a fluid conductor supplying the water flow at the point of use, wherein ozone generated by the ozone generator is configured to be disposed in the water flow to sanitize the water flow; and a controller operable to control the ozone demand indicator and the ozone generator responsive to the ozone demand indicator, wherein the controller is configured to cause the ozone generator to start generating ozone upon receiving an indication from the ozone demand indicator that the demand for ozone exists.

Abstract: A stove with an ash collecting drawer is detachably connected with the base because the stove includes the stove body, the base and the ash collecting drawer. A baking tray is provided on the stove body. The stove body is provided with a first accommodating cavity. The first accommodating cavity is provided with a first accommodating opening. The ash collecting drawer is placed in the first accommodating cavity through the first accommodating opening. The base is provided with a second accommodating cavity. The second accommodating cavity is provided with a second accommodating opening. When the stove body is detached from the base, the stove body is placed in the second accommodating cavity through the second accommodating opening, so that firewood can be burned in the first accommodating cavity, and the ashes generated after combustion fall into the ash collecting drawer.

Abstract: A universal membrane is configured to be installed between a subfloor and floor tiles to allow movement of the floor tiles relative to the subfloor. The universal membrane includes a base layer, a plurality of studs projecting from the base layer, and a plurality of sidewalls projecting from the base layer and disposed between adjacent ones of the plurality of studs. Each sidewall of the plurality of sidewalls forming a perimeter of a pocket. The base layer forms a bottom wall of the pocket.

Abstract: 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.

Abstract: The present disclosure relates to an air ventilator for an automobile, comprising: a housing (100) comprising a flow path (110) through which air is blown; a wind direction control unit (200) comprising a louver (210) to adjust a wind direction of the air; a function carrier (300) installed in the wind direction control unit (200); a shaft (400) comprising a coupling portion (410) formed on first side portion of the shaft (400), wherein the function carrier (300) is mounted on the coupling portion (410) such that the function carrier (300) is rotatable, and an output bevel gear (420) formed on a second side portion of the shaft (400); and a pair of dampers (500) coupled to a hinge (600) so as to be foldable, wherein each of the pair of dampers (500) comprises an input bevel gear (510) to be engaged with the output bevel gear (420).

Abstract: A device for cleaning a tip of a furnace burner including a support tube of axis X intended to pass through the burner and where the support tube includes a metal cable connected at one of its ends to a scraper and at the other end to a system for setting and maintaining the position of the scraper, where the scraper is articulated on the support tube between a first position aligned with the axis X in the continuation of the support tube and a second position perpendicular to the axis X, where the scraper has a chamfered part on its profile and where the support tube is connected to a rotation means for rotating the entire whole device in rotation. It can be set in place and manipulated from the rear of the burner, thereby ensuring a good level of safety for interventions, such that a rotational and/or translational movement about the tip of the burner allows the concretions to be cleaned off effectively whatever their nature (shape, hardness, etc.) and their position.

Abstract: Non-potable, utility water is circulated by a pump in a closed loop. The utility water is heated by a heat pump. Heat exchange from the utility water heats domestic hot water on demand, eliminating or reducing the need for domestic hot water storage tanks and storage of large quantities of water. In the present invention, fluctuations in condenser water temperature are dampened internally in a condenser water buffer and a control system.

Abstract: The present double walled grease duct includes a tubular outer shell surrounding a tubular inner liner, wherein a spacer is positioned perpendicular to the walls of the outer shell and the inner liner. The spacer can include a plurality of vertical metal strips extend from a top edge of the spacer to the bottom edge of the spacer, wherein the top edge of the spacer contacts the walls of the outer shell and wherein the bottom edge of the spacer contacts the walls of the inner liner. The metal strips resist the different rates of thermal expansion between the outer shell and inner liner ultimately preventing the collapse of the inner liner under pressure from thermal expansion.

Abstract: A flat-plate water-heating photovoltaic/thermal module and a production process thereof are disclosed. The flat-plate water-heating photovoltaic/thermal module includes a frame. The lower surface of the frame is provided with a heat preservation back plate. The upper surface of the frame is sequentially laminated with a glass cover plate, a first photovoltaic cell laminating adhesive, a photovoltaic cell slice, a second photovoltaic cell laminating adhesive, a transparent back plate, a third photovoltaic cell laminating adhesive and a heat absorbing component from top to bottom. A heat preservation cavity is formed between the heat preservation back plate and the heat absorption part.

Abstract: A combustion air proving (CAP) system for a burner assembly having a burner for providing heated air to a location, a controller, and a back plate, where outside air is fed to the burner via a conduit. The CAP system is connected to an inlet of the system. An outlet of the system is connected to the burner via the back plate. A damper within the system is translatable between open and closed positions for allowing and blocking air flow, respectively. A sensor measures an air flow parameter of air flow to the burner. The sensor communicates with the controller, which shuts down the burner if the parameter measured by the sensor meets a predetermined threshold value. An assembly installer may test for proper sensor and controller functions by translating the damper to the closed position and blocking outside air flow.

Abstract: Provided herein is a system on a vehicle, the system comprising one or more sensors configured to monitor concentrations of each of one or more chemicals in an interior of a vehicle, one or more processors, and a memory storing instructions that, when executed by the one or more processors, causes the system to perform: one or both of ventilating the interior of the vehicle and applying heat in the interior of the vehicle in response to one or more of the concentrations being higher than respective thresholds; in response to the performing one or both of ventilating and applying the heat in the interior of the vehicle, cleaning the interior of the vehicle in response to determining that any of the one or more of the concentrations remain higher than the respective thresholds.

Abstract: A blower assembly for a gas-burning appliance includes a blower and a motor coupled to the blower and configured to turn the blower to provide airflow through the gas-burning appliance. The blower assembly also includes a housing enclosing the blower and the motor. The housing includes a first portion and a second portion coupled to the first portion. The first portion and the second portion define a cavity therebetween to receive the motor and the blower. The blower assembly further includes an inlet sleeve coupled between the first portion and the second portion. The inlet sleeve is configured to couple to the gas-burning appliance and receive the airflow from the gas-burning appliance. The blower assembly also includes a seal extending at least partially around the inlet sleeve and at least partially between the inlet sleeve and at least one of the first portion and the second portion.

Abstract: A fluid heating process which does not utilize an open flame, heat is created by a rotating prime mover(s) driving a hydraulic heat generator. Heat is also collected from the prime mover cooling system, and any exhaust heat generated by the prime mover. The heat energy is collected from all these sources, and transmitted through heat exchangers to generate a hot fluid, which can be used to heat other fluids and used for any application where heat is required.

Abstract: A wafer boat configured to be placed on a pedestal of a vertical batch furnace, the pedestal having a substantially flat support surface. The wafer boat comprises a support ring defining a substantially flat bottom end surface of the wafer boat, and an alignment ring substantially concentric with the support ring. Either the support surface of the pedestal, or a bottom side of the alignment ring is provided with a plurality of alignment elements respectively protruding upwards from the support surface or downwards from the alignment ring, while the other one is provided with a plurality of alignment openings configured to accommodate therein the plurality of alignment elements. The support ring downwardly protrudes beyond the alignment ring so that, when the wafer boat is placed on the pedestal, the support ring is supported on the support surface while the alignment ring is spaced from the support surface of the pedestal.

Abstract: A system for air-conditioning and hot-water supply selectively performs cooling and heating operations. The system includes: an outdoor unit having a compressor and an outdoor heat exchanger; indoor units each of which is connected to the outdoor unit and includes an indoor heat exchanger; a hot-water supply unit connected to the outdoor unit and arranged in parallel to the indoor units and including a refrigerant-water heat exchanger; and a controller monitoring an occurrence of a hot water request for hot-water supply from the hot-water supply unit during the cooling operation performed at at least one of the indoor units, and then to start the heating operation in accordance with the hot-water request. The controller also monitors an occurrence of an indoor-unit request from any one of the indoor units and resumes the cooling operation where the request is an increase request for an increase of load of the cooling operation.

Abstract: A heat deflector assembly comprising a hood and at least one support leg for supporting the hood above a fire pit, includes at least one side shield which is attachable to the hood, and configured to cover an open side formed between the fire pit and said hood, for capturing and directing heat generated by a fire lit in the fire pit.

Abstract: A termination cap for a direct vent appliance. The termination cap comprises an outer housing, an exhaust housing nested within the outer housing and a trim plate. The trim plate has an exhaust gas opening and combustion air openings and is securable to the exhaust body to allow exhaust gas to flow through the exhaust gas opening. At least a portion of the combustion air drawn through the combustion air openings is heated and exits through the top or upper portion of the trim plate to form an air wash along the wall surface within which the cap is mounted.

Abstract: A roof vent includes a roof disposed on a vehicle and a vent assembly. The vent assembly has at least one vent unit disposed on the roof and configured to enter the roof, a driving unit driving the vent unit, and at least one rack unit applying the driving force of the driving unit to the vent unit. The vent unit enters the roof due to operation of the driving unit.