Contents
Many operate heating devices without properly caring for them. Do you do breakage prevention? This must be done regularly, then the equipment will not break down, and there will be comfort in your home. How to clean a gas boiler? You can call the master who will do all the work. Or you can do the cleaning yourself. Forget about service costs – we will tell you how to remove soot and scale.
Why do you need gas boiler cleaning?
Most often, the heating units, the exhaust system of combustion products are clogged. Scale may form on parts that come into contact with water. Gas exhaust pipes accumulate soot and soot.
Heating occurs due to the heat exchanger. Two radiators are installed in the double-circuit boilers “Ariston”, “Navien”, “Lemax”. One is a curved tube through which water circulates for the heating system. The second consists of plates, serves to provide hot water (DHW).
The harder the water in a region, the faster scale will form. During heating above 60 degrees, there is an active deposition of salts on the walls of heat exchangers.
How do you know when it’s time to clean your appliance?
- The coolant heats up slowly;
- Low heat transfer with high fuel consumption;
- Noise and hum during equipment operation;
- Reduced pressure when opening the mixer.
Scale narrows the passages in the pipes, so the pressure drops. Because of this, there is an additional load on the circulation pump. The radiator does not give off heat well, because of which it can overheat and fail.
The chimney, hearth, smoke exhaust pipes are subject to soot accumulation. During combustion, fuel impurities settle on the walls – carbon, organic matter. What does this lead to:
- Traction disappears, due to which carbon monoxide can enter the room;
- The level of fire safety is reduced. Large accumulation of soot can catch fire;
- The flame in the burner becomes unstable or disappears;
- Efficiency decreases due to plaque on the walls;
- The gas consumption is increasing.
How often and which nodes need to be cleaned
The equipment needs external and internal cleaning. How often should the heat exchanger be descaled? Experts recommend doing this once a year. What other components of the floor and wall boiler need to be cleaned:
- burner;
- igniter;
- filters;
- nozzles;
- coaxial chimney, conventional mine;
- pipes;
- furnace.
Consider how to properly clean the nodes in the AOGV, Baxi (Baxi), Vailant, Proterm and others boilers with your own hands.
Heat Exchanger
The operation of all double-circuit boilers is regulated by a three-way valve. It switches the heating from one radiator to another, so you need to monitor its functionality.
The principle of its cleaning, the choice of a suitable agent depends on the structure of the heat exchanger. There are radiators:
- Bithermal. The design consists of two tubes, heating is carried out simultaneously for hot water and heating. Such products are difficult to clean;
- Lamellar. Consist of layers of plates;
- Fire tube. Fluid circulates through the coil tube. More common in outdoor units “Danko”, “Aton”, “Siberia”.
What is flushing?
- Chemical;
- Mechanical;
- Hydrodynamic;
- Electric discharge.
You will need:
- wrench;
- brush-brush;
- brush for metal, pile;
- screwdriver.
First you need to get to the node.
- Close the gas valve;
- Remove the cover. It may be necessary to unscrew the bolts for this;
- Disconnect the sensors connected to the heat exchanger.
For high-quality cleaning, the assembly must be dismantled. Using a brush and a brush, clean the surface and internal parts from soot, dust, soot. If descaling of internal parts is required, chemical agents can be used.
The reagent is pumped into the booster. The pump hoses are connected to the radiator, flushing starts. Upon completion, all parts are washed with clean water. Users recommend using ordinary household products – they are much cheaper than specialized ones. The main thing is that they are thick.
You can use home remedies. Prepare a solution of citric acid in a ratio of 200 grams per 5 liters and pour into the heat exchanger. Lower the knot into a metal basin with water, put it on the stove for heating for half an hour. Then rinse under the shower.
Do not expose plates and parts to strong mechanical stress, otherwise they will deteriorate or deform.
Hydrodynamic cleaning consists in pumping pressure with a pump. Thus, a high-pressure flow is driven through the system, removing contaminants and plaque.
For the electric discharge procedure, special equipment “Streamer” is required, so it is carried out in a service center or workshop. At home, pollution can only be eliminated mechanically or chemically.
Igniter
How to understand that it’s time to clean the system? Watch the flames. If everything is in order, it is an even blue color. If the flame is yellow and burns unevenly, then the burner and igniter are clogged with dust and soot.
To remove contaminants, do this:
- Shut off the fuel supply;
- Disassemble the igniter;
- Clean the element with a brush;
- Install the item in place.
Burner
You can determine the degree of contamination by the signs indicated above.
- After shutting off the gas, remove the burner, nozzles;
- Clean the nozzles with a small brush;
- The burner is cleaned with a brush, the inside is blown with a pump;
- Assemble the parts and reinstall.
Experts recommend removing pollution every time before the start of the heating season.
filters
Water filters-mesh are removed, washed with running water. Rust deposits are removed with citric acid – just soak the part in the solution. Don’t forget to clean the gas filters.
Firebox, chimney
The accumulation of soot narrows the passage of the mine, which leads to a deterioration in traction. In this case, the boiler must not be operated – it is life-threatening. You can remove the soot from your side, and for cleaning from the street, contact the utilities. Make sure that the top of the chimney is not covered with ice. To avoid this, it is better to insulate the pipe.
The furnace is cleaned with brushes. Watch the amount of soot carefully. Under adverse conditions, it may ignite.
Boiling water is used to remove accumulations on the walls of the boiler. Fill the unit with it, turn it on. Let the liquid boil. After that, the soot can be easily removed with a sponge. You can use chemicals, but before that, carefully study the instructions.
Sometimes automation, a relief valve and other parts need cleaning. Preventive maintenance should be carried out at least once a year. So you will avoid many problems and prevent serious damage.