Where to install a gas boiler

07-08-2018

Useful

Currently in many homes and apartments often installed geysers and boilers. 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 supply 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.

In this regard, in dwellings of different types, in which there is no need to use large quantities of hot water, dual-circuit devices are becoming more and more in demand. 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.

Device and principle of operation

Two-circuit and single-circuit gas boilers differ little 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 in two circuits to heat water simultaneously for flow in different directions. This is due to a specific structure consisting of separated pipes, from which water is separately supplied to the heating and hot water network.

At a superficial inspection of a double-circuit boiler, one 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 to supply the coolant to the hot water network. In this case, it is necessary to emphasize one important nuance.

The water in the outer and inner tubes 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 to which they need to be connected during installation. If there are 3 outlets in a single-circuit boiler for connecting pipes, in a double-circuit boiler there are 5 outlets.

Assembly regulation

The owner, who decided to install a gas boiler, for example, of a double-circuit type, should know that only organizations and structures specializing in this type of work are involved in installing and connecting such equipment. 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.

Boiler installation norms

The requirement for a room for installation is an area of at least 4 m², the height of the ceilings cannot be less than 2.5 m.
The opening for the doors leading to the installed boiler should not already be 0.8 m.
Be sure to have a window, the size of which is calculated from certain considerations. With a room square of 10 m², the window opening area must be at least 0.3 m².
The presence of high-quality ventilation, as for a good gas burning requires a constant flow of air. The power of the device in 1 kW corresponds to a hole of 8 cm². These conditions are observed for boilers whose combustion chamber is closed. For their proper functioning, coaxial chimneys are used, which supply air and exhaust products arising in the combustion process.
The size of the chimney depends on the performance of power, while there is a specially designed formula for the calculation. If we take into account the fact that devices with a capacity of 30–40 kW are most demanded, then chimneys with a diameter in the corridor of 130–170 mm are most suitable for them.
The chimney at its upper end should be removed above the roof surface by 0.5 m. If a coaxial chimney is used, its upper end should rise above the air intake pipe by 0.2 m and more.
For wiring in the house of the gas pipeline used pipes made of metal. At the transitional section connecting the pipeline with the boiler, it is allowed to use corrugated pipes characterized by their flexibility.
In the room with this type of heater should be installed gas analyzer.
Private houses have advantages over apartments, because installation of boilers is allowed in their basements. If the question arises, where it is possible to install gas appliances in high-rise buildings, then a kitchen or rooms that meet certain standards are suitable for this.
The presence of a connected gas meter.
In a room with a mounted boiler, the cold water supply is obligatory.
The walls of the room, planned for the installation of a gas boiler, must be in proper condition - be flat and finished.
Forbidden for the installation of such equipment, it is possible to classify the bathrooms, corridors, balconies, basements "high-rise buildings" and rooms without windows. Also, hostels are not intended for installation.
The minimum distance between the appliance and the near wall is determined at 0.15 m. From the ceiling of the room to the upper end of the chimney should be 0.2 m or more. The distance from the part of the chimney that goes outside to the wall is not less than 0.3 m. The hinged heater must rise above the floor surface by 1.0 m - 0.8 m is allowed. The wall at the installation site is carefully insulated.

If the combustion chamber is closed in a dual-circuit boiler, the accommodation room may be windowless.

If all these conditions and rules are fulfilled in the relevant instances, you can easily obtain documents allowing the installation of gas equipment in a private house or apartment.