Viessmann factory tour

The Viessmann Group sets the technological pace for the heating industry. That is what 'Viessmann' stands for, and our employees ensure that we live up to this reputation each and every day. Every year sees 25,000 visitors to the company head office site in Allendorf (Eder) or other Viessmann Group sites.

Get a fascinating insight into a leading international manufacturer of heating systems.

Viessmann Infocenter with "Galeria" and "Via Temporis" museum

The technical aspects of heating technology are becoming more complex, whilst the product range continues to expand. We established the Viessmann Academy at our company head office in Allendorf (Eder) to enable us to pass on even more knowledge about new technologies. The new Viessmann information centre comprises the Academy and energy centre, as well as the "Galeria", which houses an exhibition illustrating the essence of our brand, and the "Via Temporis" museum.

Viessmann factory I Allendorf

For apartment buildings, commercial and industrial sites, as well as for local authorities, Viessmann offers a suitable solution for any application, with heat sources for all fuel types and outputs from 1.5 to 120,000 kW. Viessmann's comprehensive range includes wall mounted condensing boilers from 1.9 to 150 kW and floorstanding condensing systems from 1.9 to 6000 kW, as well as combined heat and power units (CHP units) from 1.0 to 401 kWel or from 5.3 to 549 kWth.

Goods distribution/logistics centre

The international goods distribution centre is the hub of sales logistics and the central warehouse of the Viessmann Group for domestic and export markets.

The automated high stack warehouse with adjustable space utilisation provides up to 59,000 pallet spaces in 19 rows. Each row has an automated storage/retrieval system equipped with a telescopic fork to stock and pick merchandise. All finished goods from in-house production, as well as merchandise from suppliers, are stored here.

Stock is then transferred from here to the Viessmann regional warehouses, which prepare commissioned orders for delivery to customers. The goods distribution centre and the regional warehouses provide the delivery service for the sales offices, which all maintain a warehouse for goods to be collected.

Biogas plants

The biogas plants of specialists Schmack Biogas and BIOFerm, which are members of the Viessmann Group, use innovative and environmentally responsible procedures to generate biogas efficiently and economically from regenerative raw materials, biowaste, waste from countryside management and organic waste. In addition, Carbotech, another member of the Viessmann Group, supplies technologies and processes for upgrading biogas and injecting it into the natural gas mains. Biogas plants were set up at the Allendorf (Eder) site for two different technical procedures.

The plant built in 2010 by BIOFerm GmbH operates according to the dry fermentation principle used in only a few plants in the Hessen region. For that reason, this project, the total investment of reached €2.5 million, was granted research & development status. As such, it is now supported by the Ministry for the Environment, Energy, Agriculture and Nature Protection in Hessen. The plant generates 1.3 million kWh of power and 1.5 million kWh of heat annually from 5000 tonnes of substrate.

An additional biogas plant was commissioned adjacent to it in 2013. This is a wet fermentation plant designed and built by the Viessmann Group member Schmack Biogas GmbH. This plant generates 1.5 million cubic meters of biogas annually from 15,000 tonnes of substrate. The biogas is upgraded to natural gas quality and injected into the natural gas grid.

This Viessmann tour gives visitors an overview of products for the entire process chain – from generation using wet or dry fermentation, to upgrading, right through to efficient utilisation with CHP units and gas boilers.