Condensing boiler, wall-mounted, dual-function GCB-C57F CRYSTAL III 20/25 kW WKD57F1000000/PLDT

Modern comfort and savings with CRYSTAL III

The CRYSTAL III condensing boiler is an advanced heating solution combining high efficiency with user comfort. It is ideal for both new and modernized installations, providing heat for heating and ensuring quick access to domestic hot water. Thanks to precise flame modulation, the boiler adapts to the current heat demand, which translates into real savings and environmentally friendly operation.

Efficiency and reliability in one device

At the heart of the boiler is a modern heat exchanger made of stainless steel, guaranteeing high efficiency and durability. The cylindrical stainless steel burner with low NOx emissions (class 6) ensures clean combustion, and a complete safety system protects against failures and ensures safe operation. Additionally, the ability to operate in a cascade system (up to 4 boilers) allows you to adjust the heating power to the individual needs of larger homes.

Functionality for installers and users

The CRYSTAL III boiler offers a wide range of control and regulation options. The OPEN-THERM communication system enables remote control of boiler parameters from a room controller, increasing user comfort. A highly efficient circulating pump and a fan with smooth speed control ensure optimal operation of the heating system. The quiet operation of the device is another advantage appreciated by end users. Energy class A confirms the high efficiency of the device, which translates into lower heating bills.

• High efficiency: Seasonal space heating efficiency at 94.0% guarantees low operating costs.
• Versatility: Can be used in new and modernized heating installations – both with radiators and underfloor heating.
• Ecological combustion: Stainless steel burner with low NOx emissions (class 6) cares for the natural environment.
• User comfort: The OPEN-THERM communication system enables remote control of boiler parameters.
• Safety: A complete safety system protects against failures and ensures safe operation of the device.
• Cascade possibility: Allows connecting up to four boilers to increase heating power in larger facilities.
• Quiet operation: Provides comfortable use without annoying sounds.