BOSCH Gas Condensing Boiler, wall-mounted CERASTARCOMFORT ZWR 18-7 KE 21

Type: ZWR 18-7 KE 21
Color: white
Gas type: 21
Seasonal space heating energy efficiency class: C
Energy efficiency class spectrum: A+++ -> D
Seasonal space heating energy efficiency: 77%
Rated heat output at 80/60 °C: 18 kW
Indoor sound power level: 46 dB(A)
Water heating energy efficiency class: A
Energy efficiency class spectrum: A+ -> F
Water heating energy efficiency at average climate: 43%
Load profile: S
Max. rated heat output: 17.8 kW
Max. rated heat load: 20.2 kW
Min. adjustable heat output: 8.9 kW
Max. adjustable heat output: 17.8 kW
Max. flow temperature: 88 °C
Electrical connection: 230 V
Electrical frequency: 50 Hz
Gas connection: R 3/4 inch
Flue pipe connection: 110 mm
Max. electrical power consumption: 85 W
Protection class (EN 60529): IPX4D, (B23/B33: IPX0D)
Hot water flow rate (tz=60°C, tk=10°C): 5.2 l/min
Min. outlet temperature (adjustable): 40 °C
Max. outlet temperature (adjustable): 60 °C
Standard efficiency according to DIN 4702 (Hi): 93%
Standard efficiency according to DIN 4702 (Hs): 83.8%
Flue gas temperature at max. rated heat load with ATB: 142 °C
Width: 440 mm
Height: 850 mm
Depth: 380 mm
Net weight: 38.5 kg
Set to natural gas LL, natural gas L
Manufacturer: Bosch Thermotechnik GmbH
Order no.: 7716010388
Packaging dimensions: 506x422x951 mm
Total weight incl. packaging: 40.5 kg