It must meet the requirements of new heat users for self-regulating indoor temperature,and ensure that existing heat users not affected by flow rate change of new heat users when an individual metered heating system is connected to an existing heat-supply network.

The hardware structure and principal program flow of the monitor for individual metered heating are discussed,and an introduction to its functions is given.

By calculating the effect of indoor temperature variation on heat source load under conditions of different radiator, supply and return water temperature , reference data on determining the heat source load after individual metered heating for residences are given.

This paper briefly introduces the status quo of heat metering in each house unit, analyzes current problems concerning the popularization of the new heating system and reconstruction of the old ones, and makes an objective analysis of the energy saving prospect of heat metering in each house unit.

The heat source question of household heating;

Study on heat metering and collecting fee of household heating;

Application of the gas-fired boiler for household heating;

The advantages and problems of individual heating using wall-mounted gas water heater as heat source are described,and the economy of individual heating is analyzed.

Applying maximum permissible unbalance rate of upfeed and direct return system for individual heating, the selection range of average specific friction resistance for entrance riser, pressure pre-reservation value for entrance inlet and building inlet are determined.