It operates with gas and heats water through combustion, which is then transported through pipes to heat the radiators. Its main advantage compared to an oil boiler is that it does not require a fuel storage tank as the supply comes directly from the network pipes.

It includes a burner, which is responsible for the fuel combustion process.
It uses condensing technology, where the boiler utilizes the energy stored in the hot flue gases before releasing them into the environment. This significantly increases its efficiency and achieves greater fuel economy and cost savings.

• High efficiency up to 109%
• Al/Si heat exchanger
• Wide modulation range from 20-100%
• Minimum power consumption in Standby: 6W
• Maximum absorbed power 82 or 145 W
• No minimum water flow required
• Maintenance under pressure
• No side clearances required
• Easy installation and operation

All gas condensing boilers in the CGB & CGB-K series from WOLF have the ability to operate with just 20% of their power. This means that in a multi-apartment building, if heating is needed in 1 or 2 apartments, this specific boiler, instead of operating at maximum power to consume fuel equivalent to heating all the apartments in the building (as traditional boilers do), can operate at a much "lower" level and of course consume only the fuel needed to warm the apartments requesting heating. The result is maximum fuel economy and therefore very reasonable consumption per apartment and low common expenses.

The basic principle of condensing technology is that the flue gases are not directly led to the chimney, but pass through a heat exchanger (heating), where they cool down. In this way, the steam containing the flue gases condenses and returns their energy back to the heating system (latent heat of flue gases).

The steam containing the flue gases provides:

• For every liter of water and degree of cooling of the flue gases, 0.0012 kWh.
• For every liter of water condensed from the steam of the flue gases, 0.63 kWh.

Thus, the condensing boiler achieves significant fuel consumption reduction, which can be:

• up to 15% for conventional body heating (70°C - 80°C)
• up to 20% for mixed heating systems
• up to 35% for underfloor heating systems (40°C - 50°C)

It "reads" the return temperature of the heating network and in this way "understands" the needs of the house at that moment. So it adjusts its power according to the actual needs of the house and does not constantly work at maximum like a conventional boiler.

Technology "blue angel" without preheating for minimum electricity consumption.

With the ability to install a double or single chimney. High-quality heat exchanger made of aluminum-pyrite alloy with minimal service requirements. Ready to be assembled with its covers on a pallet for easy transportation and installation.