After sunset,the roof releases th einner heat and draws in dry air form out side in to the house.The sensing system senses the room air temperature and the outdoor temperature,and automatically takes in only the cold air under the floor.Here the concrete functions as a cool storage.
During the winter daytime.the OM Solar system brings down the warm air heated by the roof under the floor,end the concrete absorbs the heat from the air and functions as a floor heater.As the fresh air is always pumpued in the room,the room enviromen will be kept in a good condition.Also in summer,the heat will be ventilated outdoor immediately.