Potable hot water cylinder Viessmann Vitocell 100-W CUGB 120L

Viessmann Vitocell 100-W CUGB – Potable Hot Water Cylinder (120 L)

The Viessmann Vitocell 100-W CUGB (120 L) is a versatile domestic hot water buffer cylinder, designed for use in heating systems with multiple heat sources and consumers. Thanks to its multiple flow/return connections and dedicated test/sensor ports, it integrates seamlessly with heat pumps, solar thermal systems, and solid fuel boilers.

With a 120-litre capacity, this cylinder supports small to medium-sized domestic hot water needs, and works especially well when paired with low-temperature heating systems such as heat pumps.

Key Features and Benefits

✔ Flexible system integration – Ideal for multi-source systems including solar, heat pumps, and biomass
✔ Multiple connections – For flow, return, and test instrumentation
✔ Compact and efficient – 120 L capacity for reliable DHW support
✔ Low thermal losses – Excellent all-around insulation
✔ Freshwater module compatible – Optional Vitotrans 353 for hygienic DHW (external accessory)
✔ High compatibility – Optimised for low-temp and renewable energy sources

Vitocell-W 100 CUGB (120 L) ensures hygienic, efficient and stable hot water availability, perfect for homes using modern and sustainable heating technologies.