Vitosol 300

Viessmann Solar Thermal Energy
Vitosol 300
Vacuum Tube Manifold

Vitosol 300

High performance vacuum tube collector with ThermProtect

  • Heat pipe principle
  • Efficient heat transfer
  • Quick, easy installation
  • Exceptionally long service life

Vitosol 300-TM

The Vitosol 300-TM high performance collector is one of the most efficient models on the market and is particularly recommended for use in restricted spaces. The absorber angle can be adjusted by +/- 25 degrees to deliver an exceptionally high yield, even when the sun is in less favourable positions.

The collector can be installed and used in any position and is designed for use on detached houses and apartment buildings. It features ThermProtect automatic temperature-dependent shutdown, which is activated if heat draw-off stagnates for a long period whilst there is a high level of insolation.

Vitosol 300

High‑Performance Vacuum Tube Technology

One of the most efficient solar thermal collectors on the market, delivering high yields even in limited installation areas.

Heat Pipe Operating Principle

Advanced heat pipe design ensures indirect heat transfer, maximizing efficiency and reliability by separating the solar circuit from the heat transfer medium.

ThermProtect Technology

Integrated automatic temperature-dependent shutdown prevents overheating and increases system safety during stagnation conditions.

Low Heat Loss Design

Highly efficient vacuum insulation and insulated header casing minimize thermal losses.

Kollektortemperatursensor

A collector temperature sensor is placed in a holder on the supply pipe inside the connection housing. This component is essential for monitoring and controlling the overall system temperature.

Connection System

The system utilizes an Anschluss-Set (connection set) featuring clamping ring fittings. This design ensures an easy and secure connection between the collector field and the solar circuit piping.

Flexible Connection Pipes

Flexible, O-ring-sealed pipes allow for the integration of up to

of absorber area into a single collector field. Key features include:
Efficiency: Pipes are covered with insulated housings to minimize heat loss.
Flexibility: Designed for easy integration and scalability.

Document Name Description Document Type Language Action
Data Sheet Vitosol 300-TM PDF English Download
What is the Vitosol 300‑TM used for?

It is a solar thermal vacuum tube collector used to generate heat for:

Domestic hot water (DHW)
Space heating support
Swimming pools
Process heat applications

How does the Vitosol 300‑TM work?

It operates using a heat pipe principle, where a fluid inside the tube evaporates, transfers heat to a condenser,and then condenses—ensuring efficient heat transfer to the system.

What makes the Vitosol 300‑TM highly efficient?

Its efficiency comes from:

Vacuum insulation (reduces heat loss)
Highly selective absorber coating
Precise heat transfer via Duotec exchanger

Can the collector be installed in different orientations?

Yes. It supports:

Vertical and horizontal installation
Roof, façade, or freestanding mounting
Making it highly flexible for different projects.

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