Central heating needs to pay more than 30%, and the number of households accounts for more than 50% of the total number of households before central heating can be adopted. If it is higher than 30% and lower than 1 to 50%, local heating can be used, because if the number of applicants is small, even if heating is carried out, the temperature will be lower because the floor heat dissipation is too fast to achieve the heating effect, and the heating fee will be charged at 30% of the total heating price. Yantai Longkou Donghai Mansion is located at the intersection of Linhai Road and Fuhai Road in Longkou City, Yantai City, and Nanshan Beach is located at the intersection of Daxue Road and Yuehai Road in Longkou City, Yantai City.