1. Safety: The host equipment of heat pump (including power supply) is installed outside the curing barn, and the guide duct introduces the hot air into the curing barn. Thus, no open fire will be generated in the curing barn, ensuring absolute safety.

2. Environmental protection: The heat pump curing barn has no emission, eliminating influence on and harm of human body and environment, so tobacco growers and residents at the tobacco area can have a good working and living environment.

3. Energy conservation: Through comparison with repeated tests, the costs of heat pump curing barn are reduced by 30%, and the curing barn is controlled automatically and intelligently. It does not need to be attended by a specially-assigned person. Thus, the labor cost is reduced by about 60%.

4. High quality: The heat pump curing barn controls the heat source automatically and has high accuracy. Its temperature control accuracy reaches ±1℃, improving the baking quality of tobacco.

5. Labor saving: The heat pump curing barn automatically controls temperature and eliminates moisture without any fuel. In this case, the labor intensity of tobacco grower can be alleviated greatly, and one person can operate several curing barns very easily.

6. Time saving: The heat pump curing barn increases the temperature quickly and controls the temperature accurately, and is set in sequencing. Thus, the baking time standardization is reached, and the tobacco baking of each curing barn can save time of more than 24 hours.