The short answer to that question is that it depends on the model and capacity of your chosen unit. Generally speaking, an Air Source Heat Pump & indoor unit, including the hot water cylinder, can be installed in 600mm x 1200mm x 2000mm.
Nevertheless, it is important to note that the exact size requirements will vary depending on the specific model of heat pump you choose, so consult with a professional installer to ensure you have enough space for your selected unit.
Furthermore, while the indoor unit is typically installed within the property, the outdoor unit (ASHP) must also be installed outside.
Our experienced installers can work with you to determine the best location for your indoor and outdoor units, taking accessibility, noise levels, and other factors into account.