This dataset represents the average situation of combined heat and power consumable heat in the Inner Mongolia region of China. The process considers the infrastructure required for delivery to heat users, make-up water, energy consumption and the heat losses occurring during the process. Among these, the infrastructure covers the heat supply network consisting of the primary network, heat substations and the secondary network; limited by data availability, the make-up water mainly considers the primary network and heat substation parts, and the transmission and distribution electricity consumption mainly considers the heat substation part. The heat loss rate of the primary network directly adopts the average data from combined heat and power heat source statistics. The heat loss rate of the secondary network is not calculated separately, because it is difficult to accurately account for due to insufficient monitoring equipment, blurred heat loss boundaries, incomplete data records at the management level and non-uniform statistical standards.