The flexible duct connector processing system of the present invention comprises a decoiler machine and a processing machine. The decoiler machine stores one or more rolls of flexible duct connector stock which are fed to the processing machine. The processing machine beads, notches, and cuts the flexible duct connector stock according to programmed instructions received from a control system. A conveyor system disposed after the processing machine optionally collects the cut flexible duct connector stock and conveys it in batches.

A connector configured to couple plural wall elements defining rooms or to couple insulating panels that are formed by filling a cavity with a fluid foam material wherein the connector is encased by the foam material, the connector including a housing that forms a base wall arranged in a base plane and a front wall arranged opposite to the base wall in a front wall plane; a pass-through opening formed in the front wall and configured to receive a locking hook; a receiving cavity configured in the housing for at least one locking element, wherein the housing forms an air duct, wherein the air duct extends from the front plane towards the base plane, and wherein the air duct includes an air inlet opening in the base plane and an air outlet opening in the front plane.

A vent-free fireplace heat removal system and accessories for installation of components for same, and methods for removal utilizing same. The system includes components so that when in use, heat generated in the combustion space escapes into the room in which the fireplace is situated, and heat in the room within a determined distance from the fireplace enters a slot, collects in a collection duct, and passes through a heat exhaust aperture to be expelled from the room. In certain embodiments, a fan system enhances the ability of the vent-free fireplace to expel heat.

An air-to-air heat pump system for a heating, ventilation and air conditioning (HVAC) system for a building includes a thermally insulated cool channel for pumping external air into the building, the cool channel having a volume for mixing external air with exhaust air of the building, a warm channel for pumping internal air, the warm channel including a cellular humidifier that restores humidity to internal air, heat pump coils located in the cool channel and the warm channel, the heat pump coils configured for transferring thermal energy from the cold channel to the warm channel, a first fan located in the cool channel and a second fan located in the warm channel, wherein the first and second fans are configured for moving air within a channel, all of the foregoing provided in a monoblock or Split structure located inside, or partially inside, a thermal circuit of the building.

A condensate drain line cleaning system including a coil attachment assembly and a drain attachment assembly is disclosed herein. The coil attachment assembly includes a tubing body configured to be connected to the drain line that is attached to the evaporator coil of an existing air conditioning unit. The drain attachment assembly is configured to be connecting to the existing drain line located outside a user's home. A user then pours a cleaning solution into an opening in the coil attachment assembly. Afterwards, a user then actuates a shut off valve disposed on the drain attachment assembly. A user then pours hot water into the opening of the coil attachment assembly to activate the cleaner therein. After waiting a certain amount of time, the user may then re-open the shut of valve to drain all the waste present in the drain line.

An air control system 20 and associated methods including a flexible duct 30 having air exit holes 40, 42 and a flexible liner 50, 60 sheet within the duct 30 and extending longitudinally along the duct, the liner 50 sheet having opposite longitudinal edges 52, 54 connected to the duct 30 along the longitudinal length of the duct 30, the liner 50 sheet being permeable in one aspect and regulating air flow through the exit holes 40, 42 when the sheet is pressed against the portion of the duct having the exit holes, and an air deflector positioned externally the duct to modify airflow exiting the duct. The duct 30 may also have multiple liner sheets 50, 60 arranged end-to-end and/or layered in various duct segments such that the different liners may be independently controlled to regulate the outflow of air from the duct as desired. The duct having a liner which closes or inhibits air flow from the exit holes may also be rotated to accommodate use of a single duct for different seasons and where the internal liner adjusts to assist with the downward control of air flow based on alignment of various perforations with the different exits holes.

The present invention relates to a flexible air duct winding and unwinding device for air supply, including an air duct reel assembly, a flexible air duct, two reel seats, a rotating air inlet assembly and a rotating drive assembly for driving the rotation of the air duct reel assembly; the air duct reel assembly includes a reel body, a reel air duct shaft, and a reel rotating shaft, the rotating air inlet assembly includes an inlet air duct, a fixed air duct and a rotating air duct rotatably inserted in the fixed air duct, the air outlet end of the inlet air duct is connected with the air inlet end of the fixed air duct, the air outlet end of the rotating air duct is fixedly connected with the reel air duct shaft, and the output shaft of the rotating drive assembly is fixedly connected with the reel rotating shaft.

A downdraft element having a first flow opening and a second flow opening, wherein the first flow opening is arranged relative to the second flow opening at an angle 45°≤α≤135°, preferably substantially of 90°, so that at least the average flow direction of a fluid entering the first flow opening and exiting the second flow opening or vice versa is deflectable, characterized in that the downdraft element comprises at least one damper material receptacle on an inner side between the first flow opening and the second flow opening and at least one damper inserted into the damper material receptacle. The invention further relates to a corresponding assembly.

An air duct which extends substantially in a longitudinal direction (X), having a duct wall which encloses a flow cross section and has, on its inner side, at least one fastening means for fastening at least one functional element, which can be accommodated in the air duct, in a variable position in the longitudinal direction (X) of the duct.

An air duct which extends substantially in a longitudinal direction (X), having a duct wall which encloses a flow cross section and has, on its inner side, at least one fastening means for fastening at least one functional element, which can be accommodated in the air duct, in a variable position in the longitudinal direction (X) of the duct.