Quality and according to the rules established for chimneys gas-fired boiler in a private home are an important part of effective heating systems. When installing this apparatus can not prevent errors, since it will lead to insufficient traction, high consumption of fuel and incomplete combustion products conclusion outwardly. To not have to redo the chimney, you need to take into account all the recommendations of experts. Construction of the equipment should be carried out taking into account the established standards and requirements.
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- 1 Chimneys for gas boiler in a private home: the choice of design features
- 2 The rules and requirements for use of the chimney
- 3 Nuances unit boiler flue gas in a private house
- 4 varieties of chimneys
- 4.1 Hardware options
- 4.2 ceramic varieties
- 4.3 coaxial chimney
- 5 Reviews and prices of some models
- 6 Features chimney installation for the gas-fired boiler
Chimneys for gas boiler in a private home: the choice of design features
Before you buy a chimney for a gas boiler, it is necessary to better understand its structure. Regardless of the variety of devices, each type is made up of specific components:
- main pipe for outputting smoke;
- a set of nozzles for the transition;
- adapters, clips and fasteners;
- tees to remove condensate and challenges;
- telescopic tubes and thimbles.
A variety of materials can be used to create such a structure. With proper installation of the device on a gas boiler The following options are provided:
- high level of efficiency;
- safety of tenants;
- efficiency of operation of the construction;
- a comfortable indoor climate.
The rules and requirements for use of the chimney
chimneys for gas-fired boiler and their installation in a private house requires a special approach and compliance with the installation rules. The device material must be different resistance to temperature shock, anti-corrosion properties and chemical inertness.
Inside the pipes is formed on the surface of the condensate, so it is important that the material used does not react with acids or corroded.
During installation, you need to adhere to the following rules:
- installation is done from the bottom up;
- construction must be located only in the vertical direction;
- pipe must not exceed the height is 5 m;
- excludes any bends in the pipe;
- transitions and joints must be sealed;
- headroom located above the zone of backwater windscreen.
Helpful information! To reduce the amount of condensate should be warm chimney.
Nuances unit boiler flue gas in a private house
All types of products must be installed in accordance with SNP. When they are violated various problems can arise. You need to organize a normal draft. It should consider the structure to collect the condensate, so that moisture does not accumulate on the walls. It is necessary to observe the tightness of joints and connections. All the items at the connection points in close contact with each other.
Flues for gas boilers in a private house are built taking into account the following factors:
- condensation is eliminated by using a special mechanism that is mounted at the bottom of the structure;
- installing in the vertical direction, and has no ledges;
- region of the tube, which integrates the boiler to the chimney must have a vertical segment.
The ceilings and partitions, which extends a pipe laid mineral wool. Headroom pipe mounted above the roof by half a meter. The device is equipped with the scheme provided by the manufacturer on certain models.
varieties of chimneys
When choosing a chimney for outdoor gas boiler you need to get acquainted with its varieties. Brick model is no longer as popular as before. They take up a lot of space and are characterized by a complex installation. many owners gas heating abandon brick structures in favor of the more modern versions.
Hardware options
One of the most popular types are the stainless steel model. Their advantage is considered resistant to corrosive components and strength. Such mechanisms are a sandwich system of routes of different diameters. Void clogged between them heater. Such models look modern and are characterized by high reliability.
Thermal insulation properties and multilayer sandwich panels provides structural reliability. In such condensation products are rarely formed. When installing these products is required to follow certain rules:
- a first leg, which is fixed to the heating unit must be free of insulation;
- diameter within the structure depends on the species of gas equipment;
- when assembling the upper part must be installed on top of the bottom, which will display the condensate to the outside;
- elements for connecting the heat-resistant sealant is used.
Sandwich structures It has high fire resistance. In this case, the surrounding elements are not heated.
ceramic varieties
Ceramic products are fire-safe, robust and simple options. They are distinguished by a simple device. The chimney is made of a ceramic tube which is wrapped with mineral wool.
Such a system is considered to be durable. It is resistant to heat and to aggressive chemical components. Ceramic necessarily equipped kondensatorosbornikami. In the ceramic chimney has certain characteristics:
- pipe consists of individual elements which are connected to a special putty;
- insulation is made of mineral wool;
- the casing is made from concrete blocks with vents.
Between the concrete surface and the insulation gap is left which is necessary for removal of moisture and ventilation. In some instances, the gas boiler without a chimney. In this air and the evacuation of smoke produced by ducts small diameter.
coaxial chimney
Can buy Coaxial chimney for gas boilersWhich is characterized by splendid properties and excellent design operation. Produced similar construction scheme for one tube to another. May be selected for boilers which are equipped with a combustion chamber of the closed type. This air intake unit is made from the outside. The air supply is performed via the outer tube which extends through the outer wall. The exhaust smoke discharged through the inner tube. When installing such equipment is not necessary to further ventilation system. The shape of the coaxial flue does not allow condensation to build up on the walls.
coaxial-type equipment has the following features:
- productivity increase heating systems;
- complete safety;
- if the pipe size is less than 3 meters, then the performance of the boiler increases due to the increase of thrust;
- You do not need to touch the roof for installation of such a structure.
In the presence of coaxial design, the boiler can be installed in the basement, closet or kitchen.
Reviews and prices of some models
Before purchasing a chimney it is worth considering some models, their features and prices.
| Picture | Model | Cost, rub. |
 | Lamborghini coaxial flue L - 960 | 5 440 |
 | Ariston Gi7S (metal) | 3 160 |
 | Baxi KHG (coaxial model) | 2 500 |
 | Harvia (steel stovepipe) | 4 800 |
 | Ferrum (Russia) sandwich - construction | 900 |
 | Vaillant (Germany) Coax version | 6 100 |
 | Shiedel UNI | 60 700 |
Features chimney installation for the gas-fired boiler
It is important to carry out a chimney connection to gas boiler correctly. Such a device can not be connected to multiple devices, as smoke mass can penetrate into the house. If the pipe is mounted more than two meters, it is necessary to further consolidate the special extensions. On the device is plugged with a tee. In this case, the pipe built up of links, which are fixed to the wall.
It is necessary that the outlet section with a diameter matched flues for gas-fired boilers. To drain out all you need to fathom the size and mark a. Once all holes are cut, mounted to the crossed parts of the heater tube. The resulting holes should be well insulated.
Construction of the chimney is carried out as follows:
- done for counting tube passage;
- performed by holes that performed the markings;
- set adapter for connection to a pipe to the boiler, and then mounted tee having a compartment for collecting moisture;
- Included are present communicating tubes to pass through overlap;
- construction joints are fixed by means of clamps and bolts are tightened;
- chimney fixed to the wall surface by means of special brackets;
- finally mounted nozzle in a cone shape, which protects against wind and various precipitates.
If the chimney is made of sandwich materials, the need to equip thermal insulation. Simple mounting option - is to use the finished design and insulate it.
Carrying out an independent installation, you need to consider several factors. Before you buy is worth checking the ratio of the cross section of the pipe and tube boiler. And to ensure stable traction needed to chimney height was greater than the upper point of the roof. The external part of the chimney should be warm outside. It is also necessary to know how to check the draft in the flue gas boiler. It uses a special device anemometer. Also, when a bad-drawn color of the flame is dark red. When reverse thrust effect combustion products enter into the room. This happens when improperly installed flue, the boiler blockages or poor sealing structure. chimney parameters are specified in the instructions, but it is necessary to observe the general building codes and recommendations for installation technology.
