Abstract: Described herein are window heat pumps that are configured to heat or cool building interiors while providing simple installation options. A heat pump may comprise interior, exterior, and interconnecting portions such that the interconnecting portion extends between and mechanically, fluidically, and electrically interconnects the interior and exterior portions. When installed, the interconnecting portion extends through a window and supports the interior and exterior portions relative to each other and the building. The interior and exterior portions protrude below with windowsill thereby reducing obstructions to the window. The interior portion comprises two or more air outlets spaced apart from each other and directing air into the building interior at different angles. For example, a first air outlet may direct air at least in part toward the ceiling, while the second air outlet may direct air along the floor.

Abstract: Described herein are window heat pumps that are configured to heat or cool building interiors while providing simple installation options. A heat pump may comprise interior, exterior, and interconnecting portions such that the interconnecting portion extends between and mechanically, fluidically, and electrically interconnects the interior and exterior portions. When installed, the interconnecting portion extends through a window and supports the interior and exterior portions relative to each other and the building. The interior and exterior portions protrude below with windowsill thereby reducing obstructions to the window. The interior portion comprises two or more air outlets spaced apart from each other and directing air into the building interior at different angles. For example, a first air outlet may direct air at least in part toward the ceiling, while the second air outlet may direct air along the floor.

Abstract: A heat pump system comprising an external unit that includes an external unit heat exchanger and an external unit reservoir configured to receive fluid from the external unit heat exchanger. The heat pump system further comprises a fluid handling system that includes one or more sprayers configured to obtain fluid from the external unit reservoir and expel the obtained fluid from the external unit.

Abstract: Described herein are window heat pumps that are configured to heat or cool building interiors while providing simple installation options. A heat pump may comprise interior, exterior, and interconnecting portions such that the interconnecting portion extends between and mechanically, fluidically, and electrically interconnects the interior and exterior portions. When installed, the interconnecting portion extends through a window and supports the interior and exterior portions relative to each other and the building. The interior and exterior portions protrude below with windowsill thereby reducing obstructions to the window. The interior portion comprises two or more air outlets spaced apart from each other and directing air into the building interior at different angles. For example, a first air outlet may direct air at least in part toward the ceiling, while the second air outlet may direct air along the floor.

Abstract: A heat pump system comprising an external unit that includes an external unit heat exchanger and an external unit reservoir configured to receive fluid from the external unit heat exchanger. The heat pump system further comprises a fluid handling system that includes one or more sprayers configured to obtain fluid from the external unit reservoir and expel the obtained fluid from the external unit.