http://www.prome-e.com/heat-pu....mp-for-home/air-to-w Air To Water Heat Pump suppliers This is an energy-efficient heat pump that simultaneously meets domestic heating, domestic hot water, and cooling requirements. It can produce domestic hot water all year round, provide heating in winter, and air-conditioning in summer. There are three end connections: floor heating, radiator, and fan coil. Creates great comfort at home even in cooler ambient temperatures. Outdoor Unit Specification Model name AHbS4VR3H/OAHbS6VR3H/OAHbS8VR3H/OAHbS10VR3H/OAHbS12VR3H/OAHbS14VR3H/OAHbS16VR3H/O Power supplyV/Ph/Hz220~240/1/50 Performance