Coaxial chimneys allow you to easily remove the combustion products from the boiler from the room through the wall and capture fresh air for the combustion chamber, so as not to choose oxygen from the room. This compact technology requires little space, increases the efficiency of boilers and is the most secure, as hot smoke goes through the inner tube, cooling from the outer chamber with outdoor air. The latter, on the contrary, comes preheated, which facilitates its burning. From the ranking of the best coaxial chimneys, you can see the most common models for gas radiators, convectors and boilers to heat offices, apartments and private homes.
Best Universal Coaxial Chimneys
Such chimneys have a universal mount, suitable for most boilers and radiators, which allows not to overpay for similar products from famous brands, and to ensure a good gas exchange for the full operation of the boiler and effective heating of the room.
VIVAT Kit coaxial d 60/100 - 0.75 m - for most types of boilers
This is the best coaxial chimney as an economical option to equip the heating system with free exhaust gas and fresh air suction. The cost of the kit is only 1,450 rubles.
The body is assembled from two tubes, where hot air is removed through a thin 60 mm, with a cut at the end, which does not allow the wind to create an airlock. Fresh air is drawn in through the holes cut out from below in the amount of 7 pieces, which will not close due to heavy snowfall.
Pros:
- 1450 rubles is the most affordable price in this category of goods;
- complete fastener chimney to the wall;
- two thick elastic bands for better insulation of the entire structure in the wall opening are allowed to place them anywhere along the length of the pipe;
- high-quality rubber kits on the adapters to the boiler mount.
Minuses:
- the length of the whole structure is 750 mm, so it can be poorly installed in houses with thick walls of 500 mm if the boiler is not located close to the wall itself;
- the bolted joint is only on the outlet to the boiler, the rest of the body is assembled by centering;
- The chamfered inner tube is not closed by anything, so with low placement (first floor of a high-rise building, a private house without a fence), hooligans can insert a foreign object inside.
Best branded coaxial chimneys
Such equipment is installed in a pair with the appropriate company of the convector or boiler, which guarantees easy installation and efficient operation. Manufacturers of heating equipment produce coaxial chimneys for all models of wall mounted appliances.
Chimney Ferroli 60/100 - with a protective grill at the end
This is the best coaxial chimney for connecting to boilers located low from the ground, because the end of the inner pipe with hot smoke is covered with a small grate, which provides unobstructed gas output, but protects against obstruction due to the installation of foreign objects by vandals. For installation to the boiler there are two thermal pads that come with the kit.
Pros:
- insulating rubber bands moving along the body can be installed both close to the boiler and at the very end;
- pipe diameter of 100 and 60 mm provides a free flow and outflow of gases;
- wide clamp for fixing the boiler outlet;
- maintains the temperature of gases from 90 to 150 degrees;
- white color;
- pipe length 100 cm is suitable for installation in the wall of any thickness.
Minuses:
- construction material - low carbon steel coated with polymer, which can rust if the surface is damaged during installation;
- the cost of 2500 rubles;
- only for turbocharged boilers of this brand.
NAVIEN 100/60 - with a full repair kit
This is the best-priced version of the coaxial chimney, which has everything you need to connect to the boiler.
The outlet is equipped with a rubber outer seal and a collar, the plug-in adapter for separating the flow from the heater has its own gaskets. Two wide elastic bands will close aesthetically the entrance to the wall.
Pros:
- construction length 100 cm;
- outer diameter 100 mm and internal 60 mm for unimpeded air circulation;
- the cost of 1500-2000 rubles;
- 7 intake openings for the flow of cold air are located in the lower part of the outer pipe, so they will continue to work effectively even in heavy snow or rain;
- All rubber bands are packaged and sealed in bags to maintain flexibility and not get lost.
Minuses:
- free edge of the hot gas pipe without a protective grid;
- thin section of a pipe wall.
Buderus DN 60/100 - telescope with original windscreen
This is the best coaxial chimney for regions with strong winds that can impede the free flow of exhaust gases.
To this end, the design is equipped with a plug-in nozzle with a separator, which creates thin openings for the intake of fresh air and has a mesh outlet for smoke.
The latter is easily removed even in bad weather. The assembly is carried out on screws, so the design is very durable. The pipe can be changed at maximum length due to the telescopic shape of the structure.
Pros:
- high-quality German assembly;
- original windscreen system;
- reinforcement of a thin pipe at the end with metal kerchiefs;
- the trimmed shape of the trim plates with clamps facilitates installation under the window sill or close to the floor;
- heat resistant coupling for connection to the boiler;
- outer diameter 100 mm;
- reliable protection of finishing materials (wallpaper, paint) from hot smoke;
- telescopic design with the ability to change the length of the pipe from 425 to 725 mm, which is adjustable from the thickness of the wall in place.
Minuses:
- maximum length of 725 mm is not suitable for every building;
- cost 4000 rubles.
Viessmann 60/100 - the leader of quality
The German brand produces for its heating equipment the best-quality coaxial chimney assemblies, which are distinguished by joining with screws with thick sealing gaskets.
The thickness of the section of the walls of the material does not allow the pipe to push in due to an accidental impact. The length of the chimney 1 m permits installation in buildings with walls of any thickness. The outer edge is decorated with a black insert with protection against wind and vandals, which is successfully combined with the cuff of the same color. Inside there is a similar decorative cuff, but white, for combination with the walls.
Pros:
- length 100 cm;
- diameters of pipes 60 and 100 mm for the smooth passage of gases;
- the transition from the outlet to the straight pipe by means of screw connections;
- windproof nozzle with circular inserts and side internal stiffening ribs provides passage of smoke to the outside and prevents blockage of the channel with foreign objects;
- black cuff more practical for outdoor placement.
Minuses:
- not found.
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