A method of heating water in a water storage tank. The method includes: selecting an outlet port and an inlet port from at least three ports located in the tank at different heights along a vertical direction. The outlet port is below the inlet port. The method further includes extracting water from the outlet port, supplying the extracted water to an external heat exchanger configured for heating the extracted water, and delivering heated water from the heat exchanger to the selected inlet port.

A ventilation assembly having a main housing that can be pre-installed in a wall or ceiling aperture. A fan assembly can be inserted through the aperture and releasably mounted within the main housing. The fan assembly can be removed from the main housing and replaced without removing the main housing from the wall or ceiling. An accessory component can be releasably mounted to the fan assembly either through the aperture when the fan assembly is mounted or prior to installation of the fan assembly.

In various embodiments, an air quality-monitoring system (100) may include at least one sensor (106) configured to detect operation of a mechanism (110) within or at a boundary of an indoor environment. The mechanism may be external to an air purifier (102) associated with the indoor environment. The system may include a persistent memory (124) for storing data about the indoor environment observed by the at least one sensor (106). A controller (104) may be communicatively coupled with the at least one sensor and configured to: assemble the data into an air quality profile associated with that environment; determine, based on a signal from the at least one sensor and on the air quality profile, a likelihood that operation of the mechanism will cause a measure of air quality within the indoor environment to fail one or more air quality criteria; and selectively provide, based on the likelihood, an indication that operation of the mechanism will cause the measure of air quality within the indoor environment to fail the one or more air quality criteria.

A modular smart bathroom fan includes a base exhaust fan and one or more modules. The base exhaust fan includes one or more ports that are configured to receive one or more modules. The one or more modules includes a communications module that is configured to communicate with the base exhaust fan and other modules of the one or more modules, receive information from an application or the one or more modules and generate an action to be performed by the base exhaust fan and other modules of the one or more modules.

A kitchen air conditioner and a control method thereof, where the kitchen is equipped with a range hood, the air conditioner including a housing and a current detection device. An electric control board is disposed in the housing, and the current detection device is disposed outside the housing and electrically connected to the electric control board. The current detection device is used for detecting a current of the range hood and determining whether the range hood works.

A wooden-cabinet for air conditioning system including a cabinet for housing an air conditioning system wherein the cabinet is depicted in the form of a fireplace or a wood mantel, and the cabinet is preferably made of wood material. The cabinet preferably houses the indoor unit of the air condition system and includes heat pumps, split type heat pumps, split-HVAC, hydronic based heating systems and like. The cabinet comprise a substantially rectangular shaped enclosure having the air inlet, air outlet, components of air condition system, control unit etc. The faux fireplace cabinet comprises an illustrative model of a fireplace defined on the front side of the cabinet.

The present invention aims to provide a bathroom ventilation system having a bi-directional ventilation tube that exhausts internal air to the outside while supplying external air into the bathroom to allow for quick ventilation in the bathroom and to draw toilet odors as well as air in the bathroom out of the bathroom through an internal air traveling tube, thereby minimizing occurrence of odors. To achieve the above object, according to the present invention, a ventilation system for a bathroom comprises: an external air traveling tube 100 provided at an upper side of a ceiling panel of the bathroom and having an air intake fan 150 that takes air in from an outside and moves the taken-in air to an inside of the bathroom; an internal air traveling tube 200 provided at the upper side of the ceiling panel of the bathroom and having an air exhausting fan 250 that draws air from the inside of the bathroom to the outside; and a bi-directional ventilation tube 300 provided at a ceiling of the bathroom, the bi-directional ventilation tube 300 including an air exhausting part 310 having a side connected with the external air traveling tube 100 and another side connected with the inside of the bathroom and an air intake part 320 having a side connected with the internal air traveling tube 200 and another side connected with the inside of the bathroom.

A multiuse home station includes an autonomous surface cleaning apparatus docking station, an autonomous surface cleaning apparatus charging station, and a room air cleaner unit, wherein the room air unit uses a portion of the autonomous surface cleaning apparatus docking station.

The disclosed technology includes a variable refrigerant flow (VRF) conditioning system including a single outdoor unit and a VRF path extending between the single outdoor unit and a plurality of terminals. The plurality of terminals can include a first terminal configured to condition air of an interior room and a second terminal configured to heat or cool a liquid. The VRF system can provide heating or cooling of air in different rooms or zones within a building or home while also providing heating or cooling of water. In response to a demand for heating or cooling at each terminal, the VRF system can vary the supply of refrigerant to each terminal, such that efficient and precise temperature regulation of air and liquid can be provided.

Disclosed is a multifunctional storage system including a machine chamber and a compartment, in which clothes are received, the multifunctional storage system including: a heat pump unit located in the machine chamber and including an evaporator, a condenser, a compressor, and a pressure controller; a moisture supply unit coupled to the heat pump unit and including a humidification filter; and a fan unit configured to circulate air in the machine chamber from the evaporator toward the condenser, wherein the moisture supply unit is coupled to a front end of the evaporator with reference to a circulation direction of the air, and wherein moisture is supplied to the humidification filter according to a preset condition, and loads of the evaporator and the condenser are increased as the moisture is supplied to the air when the air passes through the humidification filter.