"If the chain is long and complicated, then to calculate the system so that nowhere was too hot, or, conversely, not enough heat – is not from simple. And any design error can be fatal, "- said Anton Belov. Secondly, make a heating system of a private house some changes, "lengthen" it, or add additional heating devices later is often impossible. So, if you choose to attach to the house or additional space, for example, arrange the guest room in the attic, then back to heating would be difficult. Third, One-pipe heating system is less efficient: the heating of the house of the same area, it will almost always spend more heat than the double-pipe.

The reason is simple. In two-pipe system, coolant flow rate depends on how many heaters are currently on and on how much power. If all the radiators are shut, the circulation will not be reset and boiler capacity. In one pipe, where the radiators are connected in series, the heated water must circulate constantly, even when the system is idle. In contrast to the single-pipe, two-pipe system is much more variable. For example, it can be done with both the upper and the lower feed coolant. In addition, there are various schemes layout designed to maximize the planning and take into account the peculiarities of your needs. The most frequently to heat private homes found wiring diagrams "flex" (When the line feed and return lines successively circumvent all the heaters) and "star" (in this case from the reservoir to each of the heating device is itself a pair of tubes).

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