Vitocell 300-B

Viessmann Water Heater
Vitocell 300-B
Dual-Mode DHW Cylinder

Vitocell 300-B

Stainless steel DHW cylinder with two indirect coils, cylinder capacity: 300 and 500 liters

  • Corrosion-resistant cylinder
  • No additional running costs
  • The entire water content is heated
  • High DHW convenience

Vitocell 300-B

The Vitocell 300‑B is a dual‑mode domestic hot water cylinder designed for maximum hygiene, durability, and high hot water comfort. Manufactured from high‑grade stainless steel, it offers outstanding corrosion resistance and a long service life—without the need for sacrificial anodes or additional maintenance costs.
Thanks to rapid, even heat‑up, very low heat losses, and flexible installation options, the Vitocell 300‑B is ideal for residential and light commercial applications with high and consistent DHW demand.

Vitocell 300-B

Corrosion‑Resistant Stainless Steel Cylinder

Made from high‑grade stainless steel, ensuring exceptional durability and long service life.

Hygienic & Food‑Safe Design

High surface quality of the stainless steel guarantees excellent hygiene and food‑safe hot water storage.

No Additional Running Costs

No protective anode is required, eliminating inspection or replacement costs associated with anode‑based systems.

Complete Heating of Water Content

The indirect heating coil extends to the cylinder floor, ensuring the entire stored water volume is heated evenly.

Flexible Heat Source Integration

Suitable for connection to:

Gas or oil boilers
Condensing boilers
District heating systems
Hybrid heating concepts

Efficient Indirect Heating

Optimised heat exchanger design ensures fast recovery and stable DHW temperatures.

Compact System Design

The dual‑mode concept allows efficient system layouts with minimal space requirements.

Service‑Friendly Construction

Stainless steel design and removable insulation simplify installation and maintenance.

Document Name Description Document Type Language Action
Technical Data Manual Vitocell-B 300 300/500L GB PDF English Download
What does “dual‑mode” mean for the Vitocell 300‑B?

It refers to the cylinder’s ability to operate efficiently with different heat sources, delivering high DHW comfort in various system configurations.

Is the Vitocell 300‑B suitable for high hot water demand?

Yes. Large indirect coils and rapid heat‑up make it ideal for simultaneous or repeated hot water draw‑off.

Can the Vitocell 300‑B be used in commercial settings?

Yes. Its durability and high DHW performance make it suitable for residential and light commercial buildings.

Who should choose the Vitocell 300‑B?

It is ideal for users who want:

Premium stainless steel quality
High DHW comfort
Minimal maintenance
Excellent energy efficiency

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Vitocell 100-B
Dual-Mode DHW Cylinder

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