Air source heating appliances, such as the AriaPRO, utilise the air in the atmosphere for space heating and domestic hot water. Useful heat can be obtained from air in the atmosphere as low as -20°C. Air source heating appliances are often used to heat swimming pools as well as underfloor heating systems, due to the lower temperatures required. However the Vokèra AriaPRO can deliver temperatures up to 60°C, which can be transferred to a water cylinder to also help heat domestic hot water.
Air source heating appliances are usually situated outside a property; they lend themselves well to existing and new build properties due to a minimal installation preparation, which predominantly entails ensuring a flat and stable foundation.