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Boiler Maintenance for Winter: Mistakes You Must Avoid

September 1, 2026·3 min read

Preparing Your Heating System: Why Is It Important?

As winter approaches, our heating boiler becomes the most vital appliance in the home. Unfortunately, many families neglect seasonal maintenance, which ultimately leads to high energy costs, sudden breakdowns, or, most dangerously, safety risks. At Sheniani.ge, we frequently receive requests for problems that could have been avoided with simple preventative care.

When Should You Call a Professional?

It is important to draw the line between DIY work and professional service. If the problem involves a suspected gas leak, deformation of the combustion chamber, or a fault in the electronic board — never attempt to fix it yourself. Working with gas appliances requires licensed expertise and specialized tools. On Sheniani.ge, you can find verified professionals who will ensure the safety of your system.

Troubleshooting: A Quick Guide

If your boiler is not working properly, watch for these signs:

SymptomProbable CauseAction
Radiator is cold at the topAir trapped in the systemBleed the radiator using the radiator key
Low pressure (less than 1 bar)Leak or need to refill the systemOpen the filling valve (according to specifications)
Strange noises (clanking, clicking)Buildup of scale or circulation issueService and system power flushing required
Boiler won't start after summerStuck pump or sensor errorTry carefully turning the pump shaft

Seasonal Transition: How to Increase Efficiency?

  1. Pressure Balance: Boiler pressure in a cold state should be between 1.2 and 1.5 bar. Low pressure causes the system to shut down automatically, while too high pressure can damage the safety valve.
  2. Thermostat Calibration: If you have a room thermostat, ensure it is not near direct sunlight or a radiator. Proper placement can save up to 15% on gas costs.
  3. Radiator Balancing: If one room heats up faster than others, use the lower valves on the radiators to restrict the flow. This will balance heat distribution throughout the house.

Safety and Ventilation

The most common mistake is blocking ventilation channels. Boilers with natural combustion chambers require constant air circulation. Never cover ventilation grilles and ensure the chimney flue is clear. If you suspect a leak of combustion products, turn off the appliance immediately.

Frequently Asked Questions (FAQ)

Why does the gas bill increase in winter? Often the reason is the inefficient operation of the system, such as scale (sludge) accumulated in the radiators, which hinders heat transfer. Professional power flushing of the system significantly increases efficiency.

What should I do if the boiler doesn't start after the summer break? Often the pump is "stuck". However, if this doesn't help, the problem might be in the electronic board. In this case, I recommend ordering diagnostics on Sheniani.ge to avoid damaging the boiler with incorrect intervention.

Conclusion

Heating boiler maintenance is not just about comfort; it is about protecting your family's safety and your budget. Do not wait for a complete system failure on the coldest night. Check the pressure and ventilation today, and for serious technical checks, turn to the professionals registered at Sheniani.ge.

Remember: prevention is always much cheaper than emergency repairs.

Boiler Maintenance for Winter: A Guide to Avoiding Mistakes | Sheniani