Gas boilers are devices equipped with all the necessary components for the smooth operation and automation of central heating systems and sanitary hot water preparation. They can be either conventional or condensing.

Conventional gas boilers typically operate at high temperatures, which results in some of the heat being lost through the chimney. Depending on the type and age, conventional gas boilers are usually efficient in the range of 80% to 85%. This means that 85% of the produced heat energy is used for heating the space, while the remaining 15% is lost to the external environment. Newer generation conventional boilers, such as the Bergen Sirius 26, have higher efficiency, reaching up to 93%.

Condensing gas boilers are used for central heating and heating sanitary water, but they also make use of the additional heat generated in the boiler. They are named "condensing" because the water vapor produced during combustion condenses. Unlike traditional boilers, condensing gas boilers additionally utilize the heat energy from the flue gases, achieving higher efficiency (up to 109%) and therefore lower heating costs. Due to their high energy efficiency, their use is mandatory in the European Union.

Here are 5 tips to save on gas heating:

1. Choose Modern Gas Heating Systems
   Modern condensing gas boilers can provide savings of up to 30% compared to conventional gas boilers.
2. Check Windows and Insulation
   Up to 15% of total costs are due to heat loss caused by outdated windows. Also, insulation is crucial. If the building is not well-insulated, you will lose a significant amount of heat, which directly affects the amount on your monthly bill.
3. Install Thermostatic Radiator Valves
   By installing thermostatic radiator valves, you can set the temperature in each room individually.
4. Use a Room Thermostat
   A thermostat notifies the boiler when the desired temperature is reached, thus regulating its operation and energy consumption.
5. Lower the Temperature When You’re Not at Home
   Reducing the temperature by a few degrees at night and when you are not at home can decrease gas consumption by up to 10%.