Many operate heating appliances without properly caring for them. Do you carry out damage prevention? This must be done regularly, then the equipment will not break, and your home will be comfortable. How to clean a gas boiler? You can call the wizard, who will do all the work. And you can clean it yourself. Forget about maintenance costs - we’ll show you how to remove soot and scale.
Why do I need to clean the gas boiler
Most often, the heating units are clogged, the system of removal of combustion products. Scale may form on water contact elements. The exhaust pipes accumulate soot and soot.
Heating is due to the heat exchanger. In double-circuit boilers "Ariston", "Navien", "Lemax" two radiators are installed. 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 the region, the faster the scale will form. During heating above 60 degrees, there is an active deposition of salts on the walls of heat exchangers.
How can you understand that it’s time to clean the device:
- The heat carrier heats up slowly;
- Small heat dissipation at high fuel consumption;
- Noise and buzz during equipment operation;
- Pressure drop 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 gives off heat poorly, because of which it can overheat and fail.
The chimney, hearth, smoke exhaust pipes are subject to soot accumulation. During combustion, impurities of fuel — carbon, organics — settle on the walls. What does this lead to:
- Traction disappears, due to which carbon monoxide can enter the room;
- The fire safety level is reduced. A large accumulation of soot can catch fire;
- It becomes unstable or the flame disappears in the burner;
- Efficiency decreases due to plaque on the walls;
- Gas consumption increases.
How often and which parts 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 units of the floor and wall boiler need to be cleaned:
- burner;
- igniter;
- Filters
- nozzles;
- coaxial chimney, conventional shaft;
- pipes;
- firebox.
Consider how to properly clean the components in the boilers "AOGV", Baxi (Baksi), "Vailant", "Proterm" and others with their own hands.
Heat exchanger
The operation of all double-circuit boilers is regulated by a three-way valve. He switches the heating from one radiator to another, so you need to monitor its functionality.
The principle of its cleaning depends on the structure of the heat exchanger, the choice of a suitable product. There are radiators:
- Bithermal. The design consists of two tubes, heating is carried out simultaneously for domestic hot water and heating. Such products are difficult to clean;
- Lamellar. Consist of layering of plates;
- Fire tube. Liquid circulates through the coil tube. It is more often found in floor units "Danko", "Aton", "Siberia".
What is the flushing:
- Chemical;
- Mechanical;
- Hydrodynamic;
- Electric discharge.
To work, you will need:
- wrench;
- brush brush;
- metal brush, pile;
- screwdriver.
First you need to get to the site.
- Turn off the gas valve;
- Remove the cover. You may need to unscrew the bolts;
- 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 of soot, dust, soot. If descaling from internal parts is required, chemical reagents can be used.
Reagent is pumped into the booster. Pump hoses are connected to a radiator, flushing is started. Upon completion, all parts are washed with clean water. Users recommend using ordinary household tools - they are much cheaper than specialized ones. The main thing is that they be thick.
You can use home remedies. Prepare a solution of citric acid in a ratio of 200 grams per 5 liters and pour into a heat exchanger. Dip the knot in a metal basin with water, put on the stove for heating for half an hour. Then rinse in the shower.
Do not subject plates and parts to strong mechanical stress, otherwise they will deteriorate or deform.
Hydrodynamic cleaning consists in pumping pressure. So, a stream under high pressure is driven through the system, removing contaminants and plaque.
For the electric discharge procedure, special Streamer equipment is required, therefore it is carried out in a service center or workshop. At home, pollution can only be removed mechanically or chemically.
Ignitor
How to understand that it’s time to clean the system? Watch the flame. If everything is in order, it is even blue. If the flame is yellow and burns unevenly, it means that the burner and igniter are clogged with dust and soot.
To remove contaminants, proceed as follows:
- Shut off the fuel supply;
- Remove the igniter;
- Clean the element with a brush-brush;
- Reinstall the part.
Burner
The degree of contamination can be determined by the signs indicated above.
- After blocking the gas, remove the burner, nozzle;
- Clean the nozzles with a small brush;
- The burner is cleaned with a brush, the inside is blown by the pump
- Assemble the parts and reinstall.
Experts recommend removing dirt every time before the start of the heating season.
Filters
Water mesh filters are removed, washed with running water. Rusty deposits are removed with citric acid - just soak the part in the solution. Remember to clean the gas filters.
Firebox, chimney
The accumulation of soot narrows the passage of the shaft, which leads to poor traction. In this case, the boiler cannot 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. Carefully monitor the amount of soot. Under adverse conditions, it can catch fire.
To remove accumulations on the walls of the boiler, boiling water is used. Fill the unit with it, turn it on. Let the liquid boil. After this, the soot is easily removed with a sponge. You can use chemicals, but before that, carefully read the instructions.
Sometimes automation, a relief valve, and other parts need cleaning. Preventive work should be carried out at least once a year. So you will avoid many problems and prevent serious damage.