Is the heating pipe connected in parallel or in series?

The parallel mode of heating is good, and the main advantage of the parallel mode of radiator is that the temperature of radiator can be controlled by multiple temperature control valves and multiple pipes respectively, which will not cause large indoor temperature difference. If the radiator in this way fails, just stop a group of radiators for maintenance, and other radiators have no effect. However, the disadvantage of this parallel radiator installation method is that it needs to spend more money, which is generally more than twice as expensive as series installation.

Extended data

The water in the whole system of series heating pipes passes through the first group of waterways, then the second group, the third group and so on. Therefore, the water temperature is not as high as a group, which leads to an unnecessary increase in the number of radiators.

Series connection is actually a single pipe, that is, a pipe from the water inlet to the water outlet, and each radiator is completed in turn. Just like a series circuit, water flows out from the first house, then from the first house to the second house, then from the second house to the third house, and then flows out in turn, and finally closes the circuit.

The heating pipes are connected in series. Generally, hot water flows to the residents on the roof first, and then flows downwards layer by layer, so the radiator upstairs is hotter than the radiator downstairs. In this series mode, the inlet and outlet water temperatures of each group of radiators are different. And the valve of any radiator can't be turned off, otherwise it will affect the heating of other people's homes.

Baidu encyclopedia-heating pipe network

Reconstruction of heating pipeline in public network of residential quarters. Beicheng Thermal Power Company: series transformation into parallel connection.