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Home/DIY and home automation/Heaters and boilers/Gas water heaters/Wolf CGB-2K 20 Natural Gas/Butane Condensing Boiler 18.9 / 22.2 kW (Heating/DHW)
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Wolf CGB-2K 20 Natural Gas/Butane Condensing Boiler 18.9 / 22.2 kW (Heating/DHW)
Control unit not included for heating and hot water.
Closed combustion chamber for room-air-dependent and room-air-independent operation.
Standard efficiency up to 110% (Hi): 99% (Hs).
Premix burner for natural gas: E, LL, and LPG.
Continuously modulating heating output from: 1.8 kW with standard expansion vessel.
High-efficiency modulating pump and 3-way valve.
Coated heating water heat exchanger: Wolf ALUPro.
Efficient combustion technology thanks to a self-calibrating, gas-adapted combustion control system with automatic adjustment to the gas quality.
Combination boiler series: CGB.
Connection flow: BSPP cylindrical external thread (ISO 228-1)
Maximum operating pressure: 3 bar
Cold drinking water connection: External thread (metric)
Zapf profile: XL
Closed version: Yes
Nominal output 80-60°C: 22.2 kW
Upper nominal load value: 23 kW
Lower nominal load value: 19.6 kW
Water heating energy efficiency class: A
Return connection: BSPP cylindrical external thread (ISO 228-1)
Nominal output 50-30°C: 23 kW
Heat exchanger material: aluminum
Energy efficiency in hot water preparation (NWh): 85%
Suitable for natural gas: Yes
Suitable for propane: Yes
Maximum inlet temperature (working temperature): 90°C
Nominal voltage: 0 - 230V
Nominal diameter of cold water connection: 3/4 inch
Nominal hot water connection diameter: 3/4 inch
Nominal return diameter: 3/4 inch
Nominal supply diameter: 3/4 inch
Width: 440 mm
Height: 790 mm
Depth: 378 kg
Control unit not included for heating and hot water.
Closed combustion chamber for room-air-dependent and room-air-independent operation.
Standard efficiency up to 110% (Hi): 99% (Hs).
Premix burner for natural gas: E, LL, and LPG.
Continuously modulating heating output from: 1.8 kW with standard expansion vessel.
High-efficiency modulating pump and 3-way valve.
Coated heating water heat exchanger: Wolf ALUPro.
Efficient combustion technology thanks to a self-calibrating, gas-adapted combustion control system with automatic adjustment to the gas quality.
Combination boiler series: CGB.
Connection flow: BSPP cylindrical external thread (ISO 228-1)
Maximum operating pressure: 3 bar
Cold drinking water connection: External thread (metric)
Zapf profile: XL
Closed version: Yes
Nominal output 80-60°C: 22.2 kW
Upper nominal load value: 23 kW
Lower nominal load value: 19.6 kW
Water heating energy efficiency class: A
Return connection: BSPP cylindrical external thread (ISO 228-1)
Nominal output 50-30°C: 23 kW
Heat exchanger material: aluminum
Energy efficiency in hot water preparation (NWh): 85%
Suitable for natural gas: Yes
Suitable for propane: Yes
Maximum inlet temperature (working temperature): 90°C
Nominal voltage: 0 - 230V
Nominal diameter of cold water connection: 3/4 inch
Nominal hot water connection diameter: 3/4 inch
Nominal return diameter: 3/4 inch
Nominal supply diameter: 3/4 inch
Width: 440 mm
Height: 790 mm
Depth: 378 kg
Brand Hemmera:
Wolf
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