This air conditioner is a split inverter type, which means it consists of an indoor unit and an outdoor unit. Therefore, it requires installation of the outdoor unit outside the building for proper venting and operation. The outdoor unit handles heat exchange and must be installed outside, while the indoor unit is mounted inside the room. Installation must be done by a qualified technician, typically an F-Gas certified engineer, to ensure correct setup and compliance with regulations. This confirms that venting to the outside is necessary for this product.

Unfortunately only the inner block and not the outer casing .....