Currently, in many houses and apartments geysers and boilers are often installed. Thanks to them, both the heating of cold water and the heating of dwellings takes place. Advantageously, separate devices with a single circuit are used to heat the carrier with hot water and heating systems. There are options with a combination of single-circuit heater and an additional boiler - this is inconvenient, since a relatively large area is required for the installation of units.
Single-circuit boiler and boiler
In this regard, in different types of dwellings in which does not exist the need to use large amounts of hot water, dual-circuit devices are becoming more and more popular. They heat the water and supply it to both systems at once - both for heating and for household needs. As a rule, more questions arise when choosing where to install a gas boiler than with its installation.
Dual-circuit and single-circuit gas boilers do not differ much in design, since in both cases the burner heats the tubes with water flowing through them. The main difference is manifested in the ability of the units for two circuits to heat water simultaneously for supply in different directions. This is due to a specific design consisting of divided pipes, from which water is separately supplied to the heating and hot water network.
At a superficial examination of a double-circuit boiler, you can see a pipe bent many times with an integrated grille. But, in essence, the design of the unit is a bit more complicated. Inside the coil, through which water enters the heating system, another tube is arranged, designed to supply coolant to the hot water network. In this case, it is necessary to emphasize one important nuance.
Water in the external and internal pipes flows in opposite directions - this improves heat transfer. Even at the design stage, and especially when working on the connection of a gas boiler, this feature must be taken into account.
The presence of two heating circuits in the unit at once determined the number of pipes, who need to connect during installation. If there are 3 exits in a single-circuit boiler for connecting pipes, in a double-circuit one there are 5.
In the kitchen
The owner, who has decided to install a gas boiler, for example, of a double-circuit type, in his apartment or house should know that only organizations and structures specializing in this equipment are involved in installing and connecting such equipment type of work. They must have a license for this type of activity. Unauthorized connection of such devices "shines" to the owner of the dwelling with a very considerable fine. However, the limited work involved in preparing the installation of the unit and collecting the necessary certificates and permits should be done by the owner of the apartment or house.
The installation of gas equipment is regulated by the relevant regulatory documents. The following building codes and norms can be counted among them: SNiP 42-01-2002, SNiP II-35-76, and also the set of rules SP 41-104-2000.
If the combustion chamber is closed in a dual-circuit boiler, the accommodation room may be windowless.
If all of these conditions and rules are met in the relevant authorities, you can easily obtain documents authorizing the installation of gas equipment in a private house or apartment.