A modular exhaust configured for exhausting a flue flow of a heat exchanger, the modular exhaust including a cross tube including an inlet end, an exit end and a central axis, wherein the cross tube configured for receiving the flue flow at the inlet end and channeling the flue flow to the exit end; a condensate drainage exit aperture disposed on a bottom portion of the cross tube, the condensate drainage exit aperture configured for draining condensate from the first heat exchanger; and a vertical tube including a central axis, a top end and a bottom end, the cross tube configured to be connected at the exit end of the cross tube to a portion of the vertical tube disposed between the top end and the bottom end, the central axis of the cross tube is not disposed perpendicularly with respect to the central axis of the vertical tube.

Disclosed is a system comprising an envelope of a structure, heat pipes and fluid conduits, the envelope of the structure including at least two shells spaced apart from one another which enclose an intermediate space being sealed against an interior and exterior of the structure. First and second pipes, embedded in the exterior-facing and interior-facing shell of the structure, respectively, penetrate the envelope of the structure and together form the heat pipe for the circulation of a fluid to increase, hold or decrease heat transition through the envelope of the structure or affect heat transport into or out of the envelope of the structure.

A gas furnace is provided. The gas furnace includes a combustion part in which a fuel gas is burnt to generate a combustion gas, a heat exchanger having a gas flow path through which the combustion gas flows, a blower configured to blow air around the heat exchanger, and an inducer configured to discharge the combustion gas from the heat exchanger. The heat exchanger includes at least one single path in which a single gas flow path is formed a single-multiple return bend configured to communicate with the single path and convert a flow direction of the combustion gas, and at least one multiple path having a plurality of paths that communicate with the single-multiple return bend and form multiple gas flow paths.

A heating pad with a plurality of parallel connected heating circuits that are provided with a temperature control circuit. The parallel connected heating circuits are longitudinally separated from each such that a user may cut or sever the heat mat along predetermined cut points that are indicated on the exterior surface of the heat mat. In this way, the length of the heat mat can be adjusted in the field based on the application by simply cutting the heat mat along a predefined cut point.

A thermal transfer panel is provided for transferring thermal energy to or from an ambient environment. The thermal transfer panel includes a thermal radiating plate having a plurality of spaced elongate tabs and a thermal insulating plate having a plurality of elongate grooves. The thermal transfer panel is coupled to the thermal insulating plate to form a fluid flow channel. The tabs can include a plurality of apertures, wherein the thermal insulating plate is coupled to the thermal radiating plate, by a bonding agent or a portion of the thermal insulating plate being flowed into the apertures of the tabs so as to retain the thermal insulating plate relative to the thermal radiating plate. Couplers are provided for connecting the thermal transfer panels by fluidly connecting the fluid flow channels of one thermal transfer panel to the fluid flow channels of another thermal transfer panel, or a manifold, or a fluid distribution system.

A process is disclosed for producing a magnetocaloric composite material for a heat exchanger. The process comprises the following steps: Providing (S110) a plurality of particles (110) of a magnetocaloric material in a shaped body (200) and immersing the plurality of particles (110) present in the shaped body (200) into a bath in order to coat the particles by a chemical reaction and bond them to one another.

The present disclosure relates to a removable filter system for removably coupling a filter unit to an air supply unit provided in a boiler. The filter unit is detachably coupled to the air supply unit, so that after removing the contaminated filter unit coupled to the air supply unit, a new filter unit can be coupled to the air supply unit or the existing filter unit can be reused after removing contaminants remaining in the filter.

A sheet includes a pseudo-sheet structure including a plurality of linear-bodies with a volume resistivity R of from 1.0×10.sup.−7 Ωcm to 1.0×10.sup.−1 extending in one direction, aligned parallel to one another, and spaced apart from one another, satisfies the relation: L/D≥3, wherein D represents the diameter of the linear-bodies, and L represents the spacing between adjacent ones of the linear-bodies, and also satisfies the relation: (D.sup.2/R)×(1/L)≥0.003, wherein D represents the diameter of the linear-bodies, L represents the spacing between adjacent ones of the linear-bodies, R represents the volume resistivity of the linear-bodies, and D and L are in units of cm. A heating element and a heating device each include the sheet.

A non-contact actuation assembly configured to operate a communication line of an infrastructure system through a panel having an external face configured to be directed into an interior of a building structure, and an opposite internal face, said assembly comprising; an actuator configured to be positioned adjacent said external face by a user during operation, said actuator comprising an actuating member constituted by at least one of a magnetic member and a magnetizable member; and an operator configured to be disposed adjacent said internal face during operation, and control communication at said communication line, said operator comprising an operating member constituted by a matching one of said magnetic member and said magnetizable member; wherein upon said positioning of said actuator adjacent said external face, in register with said operator, said actuating member and said operating member are configured to be magnetically coupled such that said operator is switchable, upon disposition of said actuator member with respect to said external face, at least between a first state in which communication in said communication line is established and a second state n which communication in said communication line is obstructed.

A cooling apparatus includes a housing, a cooling air duct, and an adsorption refrigeration unit. The housing includes a plurality of sidewalls, and the plurality of sidewalls form an inner cavity. The cooling air duct passes through the inner cavity. The adsorption refrigeration unit includes an adsorption bed, a flash evaporator, and an air cooler, the flash evaporator is connected to the air cooler, both the flash evaporator and the air cooler are disposed in the inner cavity, and the air cooler is located on a path of the cooling air duct. At least one of the plurality of sidewalls is a refrigeration sidewall, the refrigeration sidewall includes an internal wall plate and an external wall plate, the internal wall plate and the external wall plate are spaced apart and form sealed space, the sealed space is connected to the flash evaporator.