Indeed, the heat pump can be used in very cold weather, no auxiliary heating, there is no fault, the product quality is very good! The product quality is perfect, the company's reputation is good, the service is in place, it is worth to trust! Indeed, the heat pump can be used in very cold weather, no auxiliary heating, there is no fault, the product quality is very good! The product quality is perfect, the company's reputation is good, the service is in place, it is worth to trust!