a residential air source heat pump designed to provide domestic hot water, heating, and cooling within a single unit. The new product includes standard features such as a built-in circulating pump ...

Scientists in Italy have coupled a solar-powered air heat pump with a water tank for thermal energy storage to provide hot water to a residential ... lower consumption of circulating pumps ...

【Programmable 24 Hours Timer】: Set the timer of the water circulation pump before you leave home, then you can enjoy a hot bath after work. No more cold water suffering, especially in winte ...