Implementations of the present invention relate to systems, methods, and apparatus for delivering and/or removing fluid from a discrete location within a building. In particular, the present invention involves a modular conduit system that can supply or remove air, water, gas, or other fluids to/from an individual space created by modular walls.

A stairway column with an integral ventilation duct. The present system includes a housing having sidewalls forming an interior volume with an open upper end. An opening is positioned along one of the sidewalls, where a plurality of stairs begin, leading from a bottom of the housing to the open upper end. A ventilation duct is placed within the interior volume of the housing beneath the stairs, extending from an intake aperture positioned at the bottom of the housing to an outlet aperture disposed at the open upper end. A fan may be installed within the ventilation duct for carrying air from the intake to the output. Additionally, one or more of the stairs may include drawers installed within the riser of the stair. In some embodiments, shelves and cavities for appliances are formed within one or more of the sidewalls, offering economical storage without requiring additional space.

An energy recovery ventilator door assembly includes an exterior door for a structure, the door including an inside fan and an outside fan for providing flows of air to a manifold. The manifold includes an inside manifold conduit for receiving stale inside air and an outside manifold conduit for receiving fresh outside air. A heat sink between the two conduits recovers heat energy from the warmer flow of air flowing in the conduits and transmits the recovered heat energy to the cooler of the flows of air in the conduits. A crossover element routs the inside conduit from the inside of the door to the outside of the door, and routs the outside conduit of the door to the inside of the door. Thus the air in the inside manifold conduit is vented to the outside of the structure through the door and the air in the outside manifold conduit is vented to the inside of the structure through the door.

A system passively cools, regulates humidity and/or rectifies diffusive transport of water vapor in an interior area within a structure. The system includes a membrane assembly covering a portion of the structure, wherein the membrane has an interior side facing the interior area and an exterior side. The membrane assembly defines a plurality of pores. When cooling, a supply of fluid is provided to the membrane assembly so that capillary action of the pores redistributes the fluid to create evaporation and, in turn, the desired heat flow. The membrane assembly can include an architectural membrane coated with a porous matrix coating to form the pores. A pump can provide the fluid to the interior side of the membrane assembly. Preferably, the architectural membrane is woven PTFE-coated fiberglass and the porous matrix coating is titanium dioxide, zeolites and/or silica gel.

Disclosed herein is an air conditioner capable of guiding air in a desired direction with an adjusted speed without marring the appearance to solve the above-described problems. An air conditioner comprising a ceiling-embedded type indoor unit configured to discharge air into an indoor room through an air outlet simultaneously sucking indoor air through an air inlet, wherein a air conditioner comprises, a main flap configured to guide a direction of air discharged from a air outlet in a preset direction, and a sub-flap configured to guide the direction of air between the main flap and the sub-flap in the preset direction, wherein a length of a main flap in a direction where air flows is longer than that of the sub-flap in the direction where air flows.

An under-floor HVAC system for a building includes a pliable air duct lying upon a subfloor. A matrix of pedestals resting upon and extending upward from the subfloor supports a set of floor panels, which thus creates a plenum between the subfloor and the set of floor panels. The air duct extends through the plenum to convey conditioned air from a supply air duct to a series of registers in the floor panels. The registers disperse the conditioned air to a room or area just above the panels. To help keep the air duct from repeatedly extending, retracting, and otherwise sliding freely along the subfloor in response to changes in air duct pressure, the air duct is held taut by anchoring a distal downstream end of the duct to one or more of the floor-supporting pedestals. Various air duct configurations can be assembled from a predefined assortment of duct components.

An under-floor HVAC system for a building includes a pliable air duct lying upon a subfloor. A matrix of pedestals resting upon and extending upward from the subfloor supports a set of floor panels, which thus creates a plenum between the subfloor and the set of floor panels. The air duct extends through the plenum to convey conditioned air from a supply air duct to a series of registers in the floor panels. The registers disperse the conditioned air to a room or area just above the panels. To help keep the air duct from repeatedly extending, retracting, and otherwise sliding freely along the subfloor in response to changes in air duct pressure, the air duct is held taut by anchoring a distal downstream end of the duct to one or more of the floor-supporting pedestals. Various air duct configurations can be assembled from a predefined assortment of duct components.

The invention non-direct vent (one pipe) or direct vent (two pipe) fuel fired appliance vent terminations spaced apart to accommodate the inward flow of combustion air and/or the outwardly flow of exhaust flue gas of a fuel fired appliance. The vent termination ends are capable of engaging the terminal ends of a variety of different size exhaust conduits including fitting sockets of a conduit fitting. The vent pipe termination can include in some aspects a vent pipe termination kit which may include, but not limited to; a vent termination main embodiment, mounting plate, screws, connector elements, threaded nuts, connector element cover, protection shield, intake screen, 90 degree elbows, sloped vent fitting, T fittings, wall anchors, decals or labels, escutcheon covers, insulating materials, caulking or other similar components.

An air flow producer assembly includes first and second elongate mounting elements separated by an elongate gap, a ceiling girder interface member affixed to each of the elongate mounting elements, and a bridge member affixed to each of the elongate mounting elements. The bridge member includes a hollow chamber that spans across the gap and which extends upwards from the elongate mounting elements. A vane assembly is installed in the hollow chamber of the bridge member, which includes a vane that swings across at least a portion of the gap.

A device comprising a fin structure, a vent disposed in the fin structure, a cooling coil disposed in the vent, a light disposed in the fin structure and wherein the fin structure is configured to create a Coanda effect for air exiting the vent.