A monoblock heat pump is a type of air-source heat pump that is designed to be compact and self-contained. It typically consists of an outdoor unit that contains the compressor, evaporator, and condenser, and an indoor unit that includes the air handler and controls. The monoblock design allows for easy installation and minimal disruption to the home, as the outdoor and indoor units are connected by a single conduit. The heat pump can be used for both heating and cooling, and can be more energy efficient than traditional HVAC systems.