Monoblock inverter air to water house heating heat pump is just one sort of ready to install, plug and play heat pump as it is only connected by water pipes without additional refrigerant pipe workings. It can be easily installed with buffer tank and also domestic hot water tank to provide comprehensive solution for both house heating, cooling and domestic hot water supply. Moreover, monoblock inverter house heating heat pump is more space efficient as it is only need installed water tank inside the machine room.