The invention provides a window-mounted smart air purifier comprising a housing unit divided into an indoor air exhaust space, an outdoor air introduction space, an outdoor air discharge space, a central space, and an indoor air introduction space that air moves therebetween; circulation units in the indoor air exhaust space/the outdoor air discharge space, comprising fans that forcibly circulates air and that polluted indoor/outdoor air moves toward outside/inside; an air purification unit comprising filters between the indoor air introduction space and the central space, between the outdoor air introduction space and the central space, and a hepa and deodorization filter and filtering impurities contained in indoor/outdoor air; a heat exchanger exchanging heats between outdoor and indoor air in respective pipes; a controller controlling the first and the second air circulation unit, and a fixing unit fixing the housing unit to a window frame.

A device for treating the air in a confined space has a first module and a second module that are telescopically coupled, in such a way that the two modules can slide one respect to the other in order to adjust to a different thickness of a wall that separates the inside from the outside. The device has a heat exchanger disposed in the first module, a first fan disposed in the first module downstream a filter to extract air from the outside to the inside, and a second fan disposed in the second module to extract air from the inside to the outside. The device also has a radon detector connected to a control unit that controls the two fans.

A device for treating the air in a confined space has a first module and a second module that are telescopically coupled, in such a way that the two modules can slide one respect to the other in order to adjust to a different thickness of a wall that separates the inside from the outside. The device has a heat exchanger disposed in the first module, a first fan disposed in the first module downstream a filter to extract air from the outside to the inside, and a second fan disposed in the second module to extract air from the inside to the outside. The device also has a radon detector connected to a control unit that controls the two fans.

A rear panel assembly includes a rear panel body provided with a vent and a motor bracket arranged at a side of the rear panel body and connected to the rear panel body. The motor bracket is at least partially opposite to the vent, and the motor bracket is provided with an air hole to allow air to flow into the vent through the air hole.

A movable air conditioner includes an air conditioner main body, an air conditioning unit installed in the air conditioner main body and configured to generate a cold air or a warm air, a control unit configured to control the air conditioning unit, and an attachment/detachment unit configured to detachably attach the air conditioning unit to the air conditioner main body so that the air conditioning unit can be optionally detached from the air conditioner main body and used independently.

A heating, ventilation, and/or air conditioning (HVAC) unit includes a heater housing having a first side wall, a second side wall opposing the first side wall, and a ceiling extending between the first side wall and second side wall. The HVAC unit also includes a first mounting rail disposed across the first side wall at a first distance from the ceiling, and a second mounting rail disposed across the second side wall at a second distance from the ceiling. The first distance is greater than the second distance. The HVAC unit also includes a heating element assembly coupled to the first and second mounting rails and having a planar heating interface extending from the first mounting rail to the second mounting rail.

Systems and methods for improving efficiency in a heat pump system using redirected outflow air are provided. The heat pump may direct conditioned air, e.g., cooled air, into a duct for circulation throughout a room or building and may receive via ducting airflow from the room and/or building. The airflow received from the building may be closer in temperature to the air directed into the building than the air in the exterior environment. The air received from the building may be redirected using a conduit to condenser or evaporator coils for heat exchange with the coils. Using the air from the building instead of the air from the exterior environment may provide for more efficient heat exchange with the coils, e.g., evaporator coils, improving efficiency of the heat pump.

Disclosed is an auxiliary mounting device and a mounting method for a saddle-type window air conditioner. Two groups of mutually connected L-shaped main supports and L-shaped auxiliary supports are included. Main transverse supports are connected with auxiliary transverse supports, an upper surface formed after the main transverse supports are connected with the auxiliary transverse supports is a plane, and a connecting part of a saddle-type window air conditioner is located on the plane. The main transverse supports and the auxiliary transverse supports can move relative to each other, so that a distance between main vertical supports and auxiliary vertical supports is adjustable for adaptation to windows with different sizes, and that the applicability is strong. During mounting, the main transverse supports and the auxiliary transverse supports are located at an upper portion of a windowsill respectively, the main vertical supports are located on an outer side of a wall below the windowsill, and the auxiliary vertical supports are located on an inner side of the wall below the windowsill. Brackets are disposed on outer sides of the main vertical supports, clamping grooves are formed in a bottom plate of an outdoor part of the saddle-type window air conditioner, and the brackets are clamped in the clamping grooves, so that the saddle-type window air conditioner is more reliable and is unlikely to shake and tilt after mounted.

An air conditioner includes: an outer housing that contains therein one or more of a condenser, a compressor, coils, a fan, an enclosure air intake, and an enclosure air return; one or more rainwater drains configured to transmit rainwater that enters the housing through the outer housing to ambient; and one or more condenser drains configured to transmit condensation from within the outer housing to an exterior location via one or more conduits.

An air conditioner includes: an outer housing that contains therein one or more of a condenser, a compressor, coils, a fan, an enclosure air intake, and an enclosure air return; one or more rainwater drains configured to transmit rainwater that enters the housing through the outer housing to ambient; and one or more condenser drains configured to transmit condensation from within the outer housing to an exterior location via one or more conduits.