A sealed heat exchange system and air conditioner are provided herein. The sealed heat exchange system may include a compressor, a heat exchanger, a line filter, a variable electronic expansion device, a primary fluid path, and an alternate fluid path. The compressor may generally increase a pressure of a flowed refrigerant within the sealed heat exchange system. The heat exchanger may be in fluid communication with the compressor and the line filter may be in fluid communication with the heat exchanger. The primary fluid path may define a fluid inlet to receive the flowed refrigerant downstream of the heat exchanger and upstream of the expansion device. The alternate fluid path may define a fluid inlet to receive the flowed refrigerant downstream of the variable electronic expansion device and upstream of the heat exchanger.

The method of modifying an air conditioner for heating takes advantage of the features and operation of a conventional limited space air conditioner, preferably a portable room air conditioner. A hood or manifold is placed over the vents or grille that normally exhausts cold air into the room, and a flexible duct hose is connected between the hood or duct and an exhaust vent installed in a window or ceiling to exhaust cold air produced by the air conditioner outside the building. The duct from the condenser or hot air side of the air conditioner, which would normally be exhausted outside the building, is open to the room in need of heating. Thus, the hot air produced by normal operation of the air conditioner is used to heat the room.

An apparatus for heating water has a tank for storing water and an air conditioning system that defines a refrigerant flow path through which refrigerant flows. The refrigerant flow path passes through the heat exchanger so that refrigerant heat is contributed to the tank. A control system controls operation of the water heating apparatus.

An apparatus for heating water has a tank for storing water and an air conditioning system that defines a refrigerant flow path through which refrigerant flows. The refrigerant flow path passes through the heat exchanger so that refrigerant heat is contributed to the tank. A control system controls operation of the water heating apparatus.

The invention relates to a method and apparatus for low temperature waste heat utilization. In the scope of the hot water plant (HWP) there are few low temperature sources, which cannot be used by heat consumer (HC) directly. The method and apparatus for hot water power plant (HWP) waste heat recovery comprises at least one, preferably condensing type heat exchanger (HE), which collects the waste heat for water source high temperature heat pump (HP) employment, wherein a low temperature heat is upgraded to a high temperature heat, hence heat pump (HP) hot water outlet is fed to the boiler in a return line or in a supply line of hot water plant (HWP), wherein the thermal energy balance adjustment of generated heat is executed by adapting the power of said heat pump (HP) and/or by adapting the power of said furnace and/or by adapting the mass flow of the primary heat transfer medium in at least one open loop heating network and/or in at least one closed loop heating circuit in the scope of heat distribution network.

The invention relates to a method and apparatus for low temperature waste heat utilization. In the scope of the hot water plant (HWP) there are few low temperature sources, which cannot be used by heat consumer (HC) directly. The method and apparatus for hot water power plant (HWP) waste heat recovery comprises at least one, preferably condensing type heat exchanger (HE), which collects the waste heat for water source high temperature heat pump (HP) employment, wherein a low temperature heat is upgraded to a high temperature heat, hence heat pump (HP) hot water outlet is fed to the boiler in a return line or in a supply line of hot water plant (HWP), wherein the thermal energy balance adjustment of generated heat is executed by adapting the power of said heat pump (HP) and/or by adapting the power of said furnace and/or by adapting the mass flow of the primary heat transfer medium in at least one open loop heating network and/or in at least one closed loop heating circuit in the scope of heat distribution network.

A system for killing pests in an affected area of a structure comprises a heat exchanger unit placed within an affected area, and a thermostatic control. The heat exchanger unit is configured to receive a flow of water from a faucet, and generate heated air by transferring heat from the flow of water received from the faucet to air flowing through the heat exchanger unit. The thermostatic control is configured to monitor a temperature of the flow of water as it is received by the heat exchanger unit, monitor a temperature of the air as it is received at an inlet of the heat exchanger unit, and automatically cease the flow of water to the heat exchanger unit when the temperature of the air received by the heat exchanger unit is greater than the temperature of the flow of water.

A system for conditioning air circulated from an interior of a building includes a refrigerant path, an air-cooled condenser in the refrigerant path, a water-cooled condenser in the refrigerant path that transfers heat from refrigerant in the refrigerant path to the building water, an evaporator in the refrigerant path, and a control system. The control system moves the system between operation of the air-cooled condenser and the water-cooled condenser based upon predetermined system conditions.

A system for conditioning air circulated from an interior of a building includes a refrigerant path, an air-cooled condenser in the refrigerant path, a water-cooled condenser in the refrigerant path that transfers heat from refrigerant in the refrigerant path to the building water, an evaporator in the refrigerant path, and a control system. The control system moves the system between operation of the air-cooled condenser and the water-cooled condenser based upon predetermined system conditions.

The present disclosure discloses a heating system coupling a passive phase change energy storage sunlight room with an air source heat pump. The heating system includes a passive phase change energy storage sunlight room (7), phase change heat storage units, a to-be-heated room (8), and an air source heat pump air heater arranged between the passive phase change energy storage sunlight room (7) and the to-be-heated room (8), wherein each phase change heat storage unit (11) consists of a plurality of phase change heat storage modules (1). An opening in the front part of each phase change heat storage module faces an interior of the passive phase change energy storage sunlight room, and the phase change heat storage modules located on the top are spliced transversely, and the vent in the top of each phase change heat storage module is connected with the ventilation port of the room.